Does this come with every new Audi? A warranty extension for carbon buildup?

[thebc]

Got this in the mail today. Did a search on here and found references to carbon buildup but nothing about a warranty extension.

http://i.imgur.com/p2vv7jW.jpg?1

[AKPS4]

Umm, i want this. But i leased my car so maybe i dont qualify for this? Is your S4 purchased?

[thebc]

Yes, it was it a purchase.

[TehDolphin3.2]

I got one in the mail today as well. This is nice to see considering when I had a '08 A4 with the 3.2 my dealership wanted me to pay for any fees associated with cleaning up the carbon. At the time I was told by the dealership that Audi doesn't consider the carbon build up to be a warranty issue.

[s4buckeye]

Could be pre-emptive as to a threatened class action lawsuit.

[Dubber4life]

This isn't regarding carbon buildup on the valves, this is for carbon buildup on the secondary air injection ports which is considered an emissions issue.

[AKPS4]

so what happens to people with leased S4's?

would we get this upon purchase? What if we have a tune and cant get a CPO warranty? Any thoughts?

[Dreads]

I bought my 2010 S4 used, and I am way under 120 000 miles. Would I be eligible for the extension considering I wasn't the original owner.

[subiesleeper]

I just got one in the mail today and while I wasn't too concerned with the 2013 this is reassuring.

Mine was purchase also.

[thebc]

Mine was used but a CPO. I would make sure Audi is aware you're the current owner on file in their database.

[Dreads]

I will go the dealership tomorrow morning and make sure I am in their data base as the new owner. I actually had an appointment tomorrow with a private shop to fix the issue. When I spoke with Audi last month they wanted to charge me almost $1000.00 to clean out the carbon build up. This site / forum is heaven sent, I have learnt so much over the last couple of days.

[AKPS4]

I am going to try and call my dealer on Monday to find out about this. I dont see why leased vehicles owners wouldn't receive the same letter if the warranty is transferable as it clearly states.

Maybe they are still being released but at least this is a publicly known issue. So, i dont think you can be denied a carbon cleaning regardless of a tune or others mods i assume?

[pbudra15]

What does this warrant cover?

This warrant extension covers only the diagnosis and cleaning of the engine cylinder head secondary air ports to remove carbon buildup. And, should you ever sell the vehicle, this warranty extension is full transferable to subsequent owners.

What is not covered?

Any damage or malfunctions caused by installation of non-EPA or non-CARB certified parts, or parts that alter the perfromance of the engine, engine controls, or exhaust system, such as the installation of engine management components ('chipped" or "tuned" ECMs) not approved by Audi.

(I wanted an AWE exhaust and not sure if its worth it with this potential problem now SMH)

Lease vehicles

If you are the lessor and registered owner of the vehicle identified in this warranty extension, please forward this information immediately via first-class mail to the lessee within ten (10) days of receipt of this notification

[Leor604]

I will go the dealership tomorrow morning and make sure I am in their data base as the new owner. I actually had an appointment tomorrow with a private shop to fix the issue. When I spoke with Audi last month they wanted to charge me almost $1000.00 to clean out the carbon build up. This site / forum is heaven sent, I have learnt so much over the last couple of days.

Please do report back on your findings. AoA is NOT the same as Audi Canada and, just because our friends south of the border are being taken care of, it doesn't necessarily mean Audi Canada will do the same.

Anybody in Canada received a letter yet???

[skiracerblah]

Didn't get it in the mail yet here in Los Angeles....

[MerkurRS]

I bought my 2010 S4 used, and I am way under 120 000 miles. Would I be eligible for the extension considering I wasn't the original owner.
You must be, because we're in the same boat and I too received a letter today

[A4_n00b]

Got the letter today too (here on the East Coast). It doesn't matter if the car was leased or purchased, all owners will have it honored.

[Gotchaa]

I wouldn't worry about the letter, its tied to the VIN

[dparm]

After the whole RS4 fiasco, I think they're doing this as CYA (even though we've seen these motors have a LOT less buildup).

[Zabuza]

Another one for east coast.

[ebi718]

Got the letter as well (East Coast).

Sent from my SPH-L720 using Tapatalk 2

[peppeS4]

Got mine yesterday and my car is a lease. It won't be my problem!

Sent from my SCH-I545 using Tapatalk 4

[CharlieG]

Also got a letter yesterday for my 2013 yesterday ... already have it safely tucked away with my title.

[tgrundke]

I'd be curious to see if Audi extends this program to the 2.0TFSI in the A4 and the 2.0FSI in the 06-08.5 A3.

[lux]

I receive mine yesterday

Sent from my SCH-I545 using Tapatalk 2

[RickFLS4]

I lease and got mine today. Not sure what to make of it, but leaning further towards just getting a new car before lease end rather than buying out and keeping this car.

Sent from my iPad using Tapatalk HD

[Vandalrg]

Got my letter yesterday, also purchased.

[paul]

http://cchanphotography.com/source/car/extension_front.jpg
http://cchanphotography.com/source/car/extension_rear.jpg

[Dreads]

I just came back from Audi (Canada) and they have not heard of Audi extending the warranty in Canada. I was the first person to mention it to them.
On Monday I will call Audi Canada and see what they have to say. I hope its something positive.

[LakeShow]

Got the same letter yesterday.

[AKPS4]

that second page is complete BS... it just basically says, yes the S4 has carbon build up issues and we WILL blame modifications for the carbon build up instead of owning up to it. Good one Audi. I have to say i am extremely disappointed with how bad Audi is with separating modifications and factory related problems.

I think im back on track to giving up my lease. Doesnt sound like my S4 will last anywhere near as long as i want it to without any major issues down the road.

[s4buckeye]

Remember, per the letter AoA is doing this as part of the EPA/emissions 10 year warranty under the guise of an "environmental" issue. Perhaps they were dinged by EPA/DoT/CARB or something, but as to the issue of whether it will happen in Canada, perhaps a call to Environment Canada (assuming they have an automotive emissions branch) will yield some answers.

[Dr GP]

I lease and got my letter yesteday. However, I'm only going to have the car for 3 more days. New S4 then. But this doesn't seem to cover the 2014s. I doubt that they actually made any chages to aleviate the problem.

[SwankPeRFection]

Got mine today. I love how the letter opens up with "Due to our dedication to the environment..." lol Ya, more like due to your bs design and fear that you'll be Class Actioned yet again. [rolleyes]


BTW, I wanted to add. Now's probably the opportune time for APR or another highly reputable and highly connected (if APR even fits this description, I don't know for sure) tuner to get in bed with Audi on a partnership and figure out how to market their tunes through Audi. Imagine how much money they could make if Audi would license their tunes as dealer installed or factory installed options for the enthusiast, similar to what BMW does with some of their out of factory tunes, etc. Heck, even in Audi had an internal R&D team to tune these engines to 410 out the box, I'd be more inclined to buy that and so would other people who want the uncorked power but not the bs risk of Audi blaming something when a wheel bearing decides to make noise or when a well know issue like the carbon build up inherent to DI engines crops up and they blame it on something else. lol

Anyway, one of these tuners need to find the path and take it to make something like this happen for the long haul. If they're not going to put tuning in our hands, then figure out how to market yourselves to the manufacturers and become partners with them for an advanced factory tune.

[nick71692]

Got mine today...leased

[phillips2024]

so put stock exhaust/intake back on when/if going in for cleaning?

[cspcrx]

Need to go check the mail.

But with the "exhaust" and mod clause sounds like most everyone here will be paying out of pocket for this!
Seems like a lot of excitment over something the majority will never get to take advantage of.

Anyone know the out of pocket cost on this repair.

[tomaszp72]

Anybody knows some carbon buildup examples for the 3.0T? Haven't heard about any so fat. 3.2 FSI is well known for this issue.

[B8_Jim]

Anyone know the out of pocket cost on this repair.


Anybody knows some carbon buildup examples for the 3.0T? Haven't heard about any so fat. 3.2 FSI is well known for this issue.

NWS4Guy posted about this issue a while back. See : http://www.audizine.com/forum/showthread.php/522527-CEL-Secondary-Air-System-(Carbon-Buildup

Think he mentions $600-700 but it's been a while, and there were several methods of cleaning discussed.

[NyRevenge]

Just got mine today as well. On the back it mentions chipped or tuned ecu not approved by Audi. Um. Excuse me AoA. Are u telling me there are ecu tunes you do approve?!

[SwankPeRFection]

I think it's probably time we ask the Audi tuners to start CARB'ing their parts... what do you guys think? I know it costs them more, but there are several Jap car aftermarket parts that carry CARB numbers on them from companies probably about the same size as what the Audi tuners are. At least some of them anyway. For almost 2k for an exhaust for us, it's time that margin carried a CARB cert with it, don't you think?

[cspcrx]

I think it's probably time we ask the Audi tuners to start CARB'ing their parts... what do you guys think? I know it costs them more, but there are several Jap car aftermarket parts that carry CARB numbers on them from companies probably about the same size as what the Audi tuners are. At least some of them anyway. For almost 2k for an exhaust for us, it's time that margin carried a CARB cert with it, don't you think?

Got mine today. I was thinking the exact same thing as i was reading it!

[SwankPeRFection]

Got mine today. I was thinking the exact same thing as i was reading it!

Glad I'm not the only one. Of course, a legaleeze reader would say that it wouldn't matter because the second part of that wording states "or alters the performance of the blah blah blah exhaust system blah blah." which basically covers them even if the parts are CARB approved, but in a legal battle, they'd be hard pressed to explain to the judge why they even indicated CARB approval for parts then if they meant ANY aftermarket parts. They inadvertently put themselves in a grey area with the wording they used. So, I think people should demand CARB cert'ing of at least some aftermarket parts that the tuners make.

[cspcrx]

This is my first Audi and i must say they they are the most anti aftermarket manufacturer i have encountered.

[SwankPeRFection]

Which is weird, but they used to not be. I've seen so many Audis and VWs running around without issues or problem from dealers/Audi for a long time. Then I decide to pick up another one and all of a sudden it's like they have issues with mods on the newest models. Find me a TD1 old school B7 or below Audi... never heard of this being an issue up until now on the B8+ models. WTF Audi?!

[jedirocker]

Rcvd my letter today. Woot...I'm covered! No need to buy a pricey catch can, right?!

[cspcrx]

Rcvd my letter today. Woot...I'm covered! No need to buy a pricey catch can, right?!

Nope your not! You have an intake and its not carb certified.
The way the letter reads unless your completely stock, your not covered.

[NunyaBiz]

A catch can would help anyways. The problem occurs during start-up....not normal driving.

[pbudra15]

Nope your not! You have an intake and its not carb certified.
The way the letter reads unless your completely stock, your not covered.

This is ridiculous. We literally have to wait for out warranty to expire to do anything, but even when the warranty expires and this carbon build up coverage continues we are not covered. Might as well mod up

[gringoloco2000]

Waiting for my letter. I got mine about a year old and CPO. Of course page 2 gives me the finger due to my mods. Hey Audi, how about you do this for my 3.6 Q7 that has probably lost 25-30hp to carbon? Yeah, did not think so.

[skiracerblah]

got mine today here in Los Angeles...

[tba]

Got my letter today. After reading it, I don't anticipate any problems having the covered work done regardless of mods or tune. Nothing in the letter says having an exhaust, intake or tune excludes you from being covered. It states any "damage or malfunctions caused by" the parts will not be covered. Which is exactly what Audi's position has always been regarding mods.
Of course, a dealership could always try and shaft you because of mods, but we're talking about a carbon cleaning paid for by AoA. The dealership loses nothing by doing it. And if they refuse, most of you are fortunate enough to be able to go to another dealership to have it done.

[Tweakophyte]

Aww man. I've been daydreaming about an exhaust. Paranoia around this will slow me down.

Any tricks or additives to prevent the potential buildup?

[boss2k]

Got the letter Saturday and I leased the car

Question : does aftermarket exhaust have any effect on this carbon buildup and warranty ?

[SwankPeRFection]

Got the letter Saturday and I leased the car

Question : does aftermarket exhaust have any effect on this carbon buildup and warranty ?

By our standards, no... by Audi's "We want to get out of paying for our mistakes" standards... yes. [rolleyes]

[Rian]

Got my letter when I check the mail today!

[211]

Got mine on Sat. Car was sold as a CPO so I hope that this won't be another argument with AoA.

[LakeShow]

Mine came as I just arrived home from installing my AWE exhaust lol. [up]

[AKPS4]

I haven't received a letter still and I feel like I never receive anything other than bills for payment... Lol. Who should I call regarding this? Dealer or AoA stating I know everyone else who owns an Audi gets all sorts of offers and letters of information but I have yet to receive anything?

[SteveYem]

Got my letter today. I'll have to give it another close read-through at the part where they were talking about aftermarket exhausts. I can't imagine why this would affect anything on the intake side of the engine, especially with all OEM emissions components (ie catalytic converters) still in place. Intake is another story, but would be simple to swap before visiting the dealer for this service.

[chillindrdude]

Im out....with my AWE exhaust :(

[SwankPeRFection]

Got my letter today. I'll have to give it another close read-through at the part where they were talking about aftermarket exhausts. I can't imagine why this would affect anything on the intake side of the engine, especially with all OEM emissions components (ie catalytic converters) still in place. Intake is another story, but would be simple to swap before visiting the dealer for this service.

It's Audi's way to try and get out of it. Even on the intake side, let's say someone just swaps out the intake tube part of the intake with a smoother rubber inlet hose like the one from 034 Motorsports. Its has the same connections as the stock unit and doesn't change anything out in terms of filter or cold-air box, etc. Is Audi really trying to tell us that their inlet hose design somehow going to change the outcome of this issue. It impossible to believe there is anything special going on inside that inlet hose to keep this problem at bay... and the truth is that there isn't.

[MailmanOdd]

FYI folks, just chatted with Audi because I never receive these letters. Call (877) 615-2834 for Audi of America and make sure your information is up to date.

[tins5]

Nope your not! You have an intake and its not carb certified.
The way the letter reads unless your completely stock, your not covered.

Seriously? Doubt it. It takes all of 5 minutes to swap it back to the stock intake. Hopefully he still has his stock intake..

Haven't gotten mine yet, but then again I've only had my car for 1 week.
Anyone else notice that it says A4 owner? How dare they?!? LOL

[theKB]

Audi [rolleyes]

[MailmanOdd]

Just spoke with AoA and they confirmed that even though I did not receive the letter that I have the warranty extensions.

[theKB]

By our standards, no... by Audi's "We want to get out of paying for our mistakes" standards... yes. [rolleyes]

All in VAG's quest to be "the worlds largest auto manufacturer".

Same as they will probably blame a "chip" for the ATF eating away at the electronics in the DSG.

[cspcrx]

Love my Audi S4, not loving Audi!

[AKPS4]

Do M3's and C63's also have as many issues as i am reading about with S4's? This is my first luxury/sports sedan and for the amount of money this car costs I am extremely disappointed. I knew nothing about Audi really before buying the S4 and would have never bought the S4 had i known of all these issues and the way AoA treats its buyers.

I may take a drive around to a few dealers and see if they can get me out of my lease and into a CPO M3 or C63. I feel with those cars i'd be perfectly happy with them stock and maintaining factory warranty and never needed a tune of suspension mods or anything else.

But then again, not really sure.... time to start the research i guess.

[Trev996TT]

Please do report back on your findings. AoA is NOT the same as Audi Canada and, just because our friends south of the border are being taken care of, it doesn't necessarily mean Audi Canada will do the same.

Anybody in Canada received a letter yet???

I received my letter today. Apparently the same coverage applies to Canada on this one. 10years or 193,000 kms.

[cfritos]

Just got my letter today as well. Not sure why some of you are so worried about your mods tho. The carbon build up shouldnt happen for quite some time, so as long as you stay TD1 free, just swap back to all stock parts before you bring it in for the carbon build up service. OR if the cost to swap your car back to stock outweights the savings of keeping your car in warranty, than just pay the fee. Thats just my two cents though.

[AKPS4]

I'd rather pay a reputable performance shop than the stealership... We'll see what happens when people start putting miles on their cars and getting to that point. I think so far there has only been two(?) cases of carbon build up with the B8 S4 if i remember correctly?

[NWS4Guy]

Got mine on Sat. It doesn't say that they will not do the cleaning if you have a chipped car or aftermarket stuff. It says they will not cover damage or malfunctions CAUSED by aftermarket parts or chipping the car. This occurs on stock cars, therefore additions of common aftermarket parts and chipping does not cause this SAI carbon issue, and you can easily argue it will be covered. Mine was, and I am TD1 (which you can see in the notes from the tech). If it happens again before the expiration of my extension, I will be back in to argue that this occurs whether chipped or not, and I am betting it gets addressed.

FYI - my MIL came on at ~36,000 miles, it was absolutely this issue.

http://www.audizine.com/forum/showthread.php/522527-CEL-Secondary-Air-System-(Carbon-Buildup)

[ahcow]

I can confirm this also applies to Canada. I got mine in the mail today.

Sent from my SGH-I317M using Tapatalk 2

[alarum_78]

Got my letter yesterday (Auguest 19th) from Audi Canada for my 2010 S4 in Canada :).

[jpbadonk]

Just spoke with AoA and they confirmed that even though I did not receive the letter that I have the warranty extensions.

This ^^^^

Assume you are covered regardless of receiving the letter -- unless you are modded. :(

[rolsmi1]

This warranty extension is probably worthless to everyone on this forum. AoA's disclaimer includes chip tunes "not approved by Audi". I have a Stasis tune installed at a Stasis authorized dealer, so maybe that is an "approved" Audi chip tune. But I have an aftermarket exhaust, so I suppose that would disqualify me anyway. I guess we'll know as cars develop carbon buildup problems. I think their response to the issue is a crock, as they know full well that most folks with S4's don't leave them stock. They have no evidence that any of our mods contribute to carbon buildup. The real potential problem is with buildup on the valves, as a result of a direct injected engine design that doesn't include any injectors for cleaning the valves. They should just man up and extend the warranty without the disclaimer or disavow altogether. They don't care about the reliability of your engine as much as being in violation of fed emission standards.

[SwankPeRFection]

^^^ Doesn't really matter because if this ends up being a big issue and a ton of people with simple aftermarket parts get denied these warranty claims, a threat of a lawsuit when they know full and well the problem exists on stock vehicles, will change their mind. Also, all dealerships will have this campaign on record for your VIN and they should do the work unless Audi specifically tells them not to do it because of aftermarket parts. Regardless, if that was the case, that'll be a manufacturer basically denying warranty repairs for a problem that they have extensive documentation on which happens with ALL vehicles, not just modified ones. That being the case, it'll open them to too many legal issues should they go that route.

Now they may say something along the lines of "Well, we'll good will it just one time since your car isn't stock, but that's it." but even a statement like that should be take with a grain of salt. They've upped this to 120k miles, so my guess they're expecting the problem might crop up once or twice in that timespan for these engines. It's not like you'll run into this every 30k miles... at least not enough to cause you to have the procedure done at that frequency.

[100Daily]

Strangely I didn't get the letter that some of you did, but I DID get a letter yesterday for my old B7 A4 I haven't owned in years. Same letter detailing the carbon cleanup, but with the 3.2 and 2.0T engine listed. They must have sent out a large batch for many different models. I wonder if/when I will get the S4 letter.

[riegeraudi]

Now only if we can complain enough to Audi about the DSG problems maybe we can also get them to give us a warranty extension on that as well.

[Vogz]

This warranty extension is probably worthless to everyone on this forum. AoA's disclaimer includes chip tunes "not approved by Audi". I have a Stasis tune installed at a Stasis authorized dealer, so maybe that is an "approved" Audi chip tune. But I have an aftermarket exhaust, so I suppose that would disqualify me anyway. I guess we'll know as cars develop carbon buildup problems. I think their response to the issue is a crock, as they know full well that most folks with S4's don't leave them stock. They have no evidence that any of our mods contribute to carbon buildup. The real potential problem is with buildup on the valves, as a result of a direct injected engine design that doesn't include any injectors for cleaning the valves. They should just man up and extend the warranty without the disclaimer or disavow altogether. They don't care about the reliability of your engine as much as being in violation of fed emission standards.

READ the letter. It doesn't say that modified vehicles won't be covered. It simply says that they will not cover damage CAUSED by modifications. That's their standard line with any of their warranties. This has been posted multiple times in this thread. They know the carbon issue is happening to stock cars. They aren't going to blame it on your mods.

[NWS4Guy]

READ the letter. It doesn't say that modified vehicles won't be covered. It simply says that they will not cover damage CAUSED by modifications. That's their standard line with any of their warranties. This has been posted multiple times in this thread. They know the carbon issue is happening to stock cars. They aren't going to blame it on your mods.

Exactly. Proof that this is evident in STOCK cars is the fact that the letter went out. Anything else will not be fixed, but this will no matter what else was done to the car, since stock cars get it anyway.

[theKB]

Exactly. Proof that this is evident in STOCK cars is the fact that the letter went out. Anything else will not be fixed, but this will no matter what else was done to the car, since stock cars get it anyway.

as much as I would like to agree with you, I have a sneaking suspicion in Canada anyway that they will not honor this without a fight.

With that said I got my letter today from Audi Canada. Also got an emissions recall for my touareg as well.

I have gotten a MIL related to that SAI code in the past but just cleared it and went on my business since it really doesn't matter. Hasn't come back in well over a year.

[cspcrx]

as much as I would like to agree with you, I have a sneaking suspicion in Canada anyway that they will not honor this without a fight.

With that said I got my letter today from Audi Canada. Also got an emissions recall for my touareg as well.

I have gotten a MIL related to that SAI code in the past but just cleared it and went on my business since it really doesn't matter. Hasn't come back in well over a year.

I feel the same will happen her in the US as well.

[Leor604]

as much as I would like to agree with you, I have a sneaking suspicion in Canada anyway that they will not honor this without a fight.

With that said I got my letter today from Audi Canada. Also got an emissions recall for my touareg as well.

I have gotten a MIL related to that SAI code in the past but just cleared it and went on my business since it really doesn't matter. Hasn't come back in well over a year.

Glad to see that Audi Canada is in the game. Hope I have a letter waiting for me at home.

[au5]

Yep. Just got my extension from Audi Canada today to.


Sent from my iPad using Tapatalk HD

[Dr. Wh0]

got mine today too

[Dreads]

I got my letter on Monday and made an appointment for Friday. They told me that they will do a diagnostic Friday morning, and if the codes (engine light is currently on) indicate that there is an issue I will have to bring the car back on Monday for them to do the work. It could take up to two days to clean out the carbon build up. I know why the light is on because 2 other mechanics confirmed the issue. I really hope Audi does the right thing and fix the issue.

[SwankPeRFection]

Two days to clean the carbon out? Something tells me the way Audi dealers do it is probably not as efficient as the walnut shell guys do it. Supposedly Audi closes the valves on each respective intake port and then pours a cleaning agent in that's supposed to loosen and soften the buildup, then they chip away at it. Who's to say the mechanic isn't going to mar up your valves and intake ports with all this chipping away process. I'd love to hear from an actual Audi dealer mechanic as to what measures they use to do the process as efficiently and as perfect as the walnut shell guys do it.

[parasound]

In for receiving the letter from Audi Canada

[jk25]

I got my letter from Audi Canada today as well.

[sliner32]

I live in calgary Canada and received letter yesterday so I'm sure the rest of Canadians will also receive it. I have awe exhaust does this exempt me. ??

[alexnyc22]

Mine is leased aswell and i recieved the same letter 2 days ago...

Umm, i want this. But i leased my car so maybe i dont qualify for this? Is your S4 purchased?

[offthewall]

Got the same letter a few days ago. 2013 S4. Purchased. NJ.

[theKB]

Two days to clean the carbon out? Something tells me the way Audi dealers do it is probably not as efficient as the walnut shell guys do it. Supposedly Audi closes the valves on each respective intake port and then pours a cleaning agent in that's supposed to loosen and soften the buildup, then they chip away at it. Who's to say the mechanic isn't going to mar up your valves and intake ports with all this chipping away process. I'd love to hear from an actual Audi dealer mechanic as to what measures they use to do the process as efficiently and as perfect as the walnut shell guys do it.

They aren't cleaning the valves in this process.

[pbadss]

I got the letter yesterday but could someone please help me understand what's going on?

There's a carbon build up problem that affects ALL 2009-2013 S4's. The carbon builds up slowly and gradually affects performance, but won't be acknowledged by Audi until the CEL light trips right?

Audi's fix for the problem is a cleaning that costs ~$1k which they are willing to do up until 10 years/100k miles

I'm just guessing, but would it be safe to say that most of cars won't have a carbon buildup problem until around 50k miles? Is the cleaning that Audi performs through enough that one could expect around another 50k miles before the CEL light trips again?

I don't like it, but I can accept it a $1000 "maintenance" fee every 50k miles or so if that ends up being the case, especially if Audi does it for free in the extended period. However I won't be happy if the cleaning only "lasts" 10k miles or if performance is permanently degraded even after the cleaning.

[rs4dreams]

I got the letter yesterday but could someone please help me understand what's going on?

There's a carbon build up problem that affects ALL 2009-2013 S4's. The carbon builds up slowly and gradually affects performance, but won't be acknowledged by Audi until the CEL light trips right?

Audi's fix for the problem is a cleaning that costs ~$1k which they are willing to do up until 10 years/100k miles

I'm just guessing, but would it be safe to say that most of cars won't have a carbon buildup problem until around 50k miles? Is the cleaning that Audi performs through enough that one could expect around another 50k miles before the CEL light trips again?

I don't like it, but I can accept it a $1000 "maintenance" fee every 50k miles or so if that ends up being the case, especially if Audi does it for free in the extended period. However I won't be happy if the cleaning only "lasts" 10k miles or if performance is permanently degraded even after the cleaning.

The warranty extension is specifically for carbon buildup in the secondary air system that warms up the catalytic converter. This buildup will cause a CEL but won't cause a degradation in performance.

The other type of carbon buildup that all direct injected engines suffer from to some degree is on the valves. B7 RS4s suffer from this quite a bit, with some people reporting noticeable power losses after just 10-15k miles. A couple B8 S4 owners here have had their intake manifolds off and took pictures of the buildup with 50-60k miles total. It looked very minor in comparison, and I would think that a cleaning could make sense every 60-80k miles or so. Perhaps less, there just aren't very many data points.

The extension does not cover the second type of buildup as far as I understand, though Audi may consider doing this in the future if it causes CELs to trip as some B7 RS4s with lots of buildup on the valves did.

[theKB]

i had this CEL appear at around 20k km.

[Dreads]

UPDATE !!!!!!!
So as mentioned before I had an appointment with Audi today. They called me at 12 to let me know the car does fall under the "extended warranty" and there would be no cost to have the issue fixed. They then went on to tell me that I can pick up the car at anytime and when the "check engine" light comes back on (they cleared the codes), I can take the car back and then they will clean the carbon out. I told them that I have had 2 private mechanics confirm what the issue is (one of them being an ex-audi mechanic) and you yourselves (Audi) have confirmed what the issue is so why do I have to wait for the check engine light to come back on before the issue is fixed?
"In order for Audi to clean the carbon build up, they have to confirm the issue, swipe the codes and if the same codes come back for the carbon build up. bring it back in for confirmation and once confirmed, the car will go into the service bay and it will be fixed.

Has anyone had the "extend warranty" work done on their car and if so, did they experience the same thing?

[ASDBS]

got mine as well

[SwankPeRFection]

They aren't cleaning the valves in this process.

The carbon buildup is on the intake valves, how can they not clean that out too? Are you saying their process on this is just to clean out the secondary runners and nothing more? If so, fuck Audi and their extended warranty on this. Cheap asses!

[SwankPeRFection]

UPDATE !!!!!!!
So as mentioned before I had an appointment with Audi today. They called me at 12 to let me know the car does fall under the "extended warranty" and there would be no cost to have the issue fixed. They then went on to tell me that I can pick up the car at anytime and when the "check engine" light comes back on (they cleared the codes), I can take the car back and then they will clean the carbon out. I told them that I have had 2 private mechanics confirm what the issue is (one of them being an ex-audi mechanic) and you yourselves (Audi) have confirmed what the issue is so why do I have to wait for the check engine light to come back on before the issue is fixed?
"In order for Audi to clean the carbon build up, they have to confirm the issue, swipe the codes and if the same codes come back for the carbon build up. bring it back in for confirmation and once confirmed, the car will go into the service bay and it will be fixed.

Has anyone had the "extend warranty" work done on their car and if so, did they experience the same thing?

Sounds like bullshit. Sounds like they don't want to get paid by Audi to do the repair or Audi doesn't want to pay them if they can get away with a reset and keep milking it. I'd ask them why they didn't submit the check engine codes this time so that the procedure could be done. Speak with the manager, fuck the SA guy.

[Dreads]

I'm heading back up to Audi tomorrow to speak with them. Its going to be a long day for the Audi service department if they do not tell me something different.

I know they are trying to drag this process out as long as possible. The "warranty extension", must be costing them millions of dollars.

[NWS4Guy]

The carbon buildup is on the intake valves, how can they not clean that out too? Are you saying their process on this is just to clean out the secondary runners and nothing more? If so, fuck Audi and their extended warranty on this. Cheap asses!

This has nothing at all to do with the valves, please research carbon buildup valves on this forum, then read this entire thread and you can comment more intelligently.

[shadycrew31]

For those of us out of warranty I wonder what the charge would be to clean the valves.

I know the Aux ports are covered under 120k but the carbon isn't limiting itself to those ports.

[NWS4Guy]

For those of us out of warranty I wonder what the charge would be to clean the valves.

I know the Aux ports are covered under 120k but the carbon isn't limiting itself to those ports.

What has been seen on the valves is orders of magnitude less than what B7 RS4 cars have on them. Are they spotless? No. Are they causing misfires? None I am aware of. Is it perhaps robbing some power? Yes, perhaps it is.

There is currently no known cause for concern on the 3.0T supercharged engine we have in regards to excessive CB on intake valves, though YMMV. Driving the car short stints, never getting it up to operating temps, and rarely flooring it to really get air moving through the system will all increase the likelihood of issues with CB.

[shadycrew31]

What has been seen on the valves is orders of magnitude less than what B7 RS4 cars have on them. Are they spotless? No. Are they causing misfires? None I am aware of. Is it perhaps robbing some power? Yes, perhaps it is.

There is currently no known cause for concern on the 3.0T supercharged engine we have in regards to excessive CB on intake valves, though YMMV. Driving the car short stints, never getting it up to operating temps, and rarely flooring it to really get air moving through the system will all increase the likelihood of issues with CB.

Hmmmm, its possible the super charger aids in keeping carbon off? All other TFSI engines are having issues left and right from what i've been reading in other forums.

[SwankPeRFection]

Hmmmm, its possible the super charger aids in keeping carbon off? All other TFSI engines are having issues left and right from what i've been reading in other forums.

No, why would it? The pressurized air is in the same place and still come past the intake valves in the same place. Technically speaking it should be no different from that standpoint, but since the 3.0T does attain positive boost easier, maybe the more consistent on-boost levels of manifold pressure is helping the issue... I'm reaching here a bit, but who knows? I'd be willing to say no on this one. Ideally, Audi reengineering the valves for a smoother design or even coating them in teflon or something else that can withstand the temps would help this issue more as it would make it harder for the carbon to stick to the valves and start forming on it. If they could build valves that have a nano-smooth finish, I bet it would solve this problem in the long run.

[FatalBert]

So if they know this is an issue with factory OEM cars then how can they say an exhaust/tune caused it? Are any exhausts for our cars EPA or CARB certified?

[shadycrew31]

No, why would it? The pressurized air is in the same place and still come past the intake valves in the same place. Technically speaking it should be no different from that standpoint, but since the 3.0T does attain positive boost easier, maybe the more consistent on-boost levels of manifold pressure is helping the issue... I'm reaching here a bit, but who knows? I'd be willing to say no on this one. Ideally, Audi reengineering the valves for a smoother design or even coating them in teflon or something else that can withstand the temps would help this issue more as it would make it harder for the carbon to stick to the valves and start forming on it. If they could build valves that have a nano-smooth finish, I bet it would solve this problem in the long run.

Yea I was just trying to figure out why our engines have no been effected yet. I am pretty sure the SC has no effect on it but ya never know.

[4R1NGS]

Add me for receiving the letter from Audi Canada. Bought it in June.

[NWS4Guy]

No, why would it? The pressurized air is in the same place and still come past the intake valves in the same place. Technically speaking it should be no different from that standpoint, but since the 3.0T does attain positive boost easier, maybe the more consistent on-boost levels of manifold pressure is helping the issue... I'm reaching here a bit, but who knows? I'd be willing to say no on this one. Ideally, Audi reengineering the valves for a smoother design or even coating them in teflon or something else that can withstand the temps would help this issue more as it would make it harder for the carbon to stick to the valves and start forming on it. If they could build valves that have a nano-smooth finish, I bet it would solve this problem in the long run.


Yes and no. The place that the exhaust gases as reintroduced is through a small valve in the bottom of the SC between the rotors. This could allow the heavier particles to collect on the rotors and not the valves to some degree. Over and above this, the 3.0T since 2009 has a redesigned "labyrinth" system which gradually gets narrower and narrower as the EG's are recirculated, causing the heavier particles to drop out of the airflow, and run back into the oil system and be filtered out through the oil filter. Additional changes to the 3.0T have it running at 10F degrees hotter oil system on purpose, which is also supposed to be a factor to stave off CB (as well as likely why it seems to be more of an issue on those cars which are never driven very hard and rarely get up to operating temps).

[FatalBert]

Received mine. Hoping they wont deny me on this for having an exhaust...

[shadycrew31]

Yes and no. The place that the exhaust gases as reintroduced is through a small valve in the bottom of the SC between the rotors. This could allow the heavier particles to collect on the rotors and not the valves to some degree. Over and above this, the 3.0T since 2009 has a redesigned "labyrinth" system which gradually gets narrower and narrower as the EG's are recirculated, causing the heavier particles to drop out of the airflow, and run back into the oil system and be filtered out through the oil filter. Additional changes to the 3.0T have it running at 10F degrees hotter oil system on purpose, which is also supposed to be a factor to stave off CB (as well as likely why it seems to be more of an issue on those cars which are never driven very hard and rarely get up to operating temps).

Thanks for clarifying, I was able to find some site showing a reduced amount of CB in the 3.0T versus other TFSI engines. It was still thick enough at 55k that it needed to be cleaned out but nothing close to the 2mm thick that the 4cyl's are seeing.

That said I'd still like to crack mine open and see how they look.

[westwest888]

I think this is common on all FSI engines. Part of the maintenance if you want max performance.

[helix139]

I think this is common on all FSI engines. Part of the maintenance if you want max performance.

This doesn't affect performance. It's on the SAI system, not the valves, which means it only effects cold start emissions and causes a CEL for failed readiness.

[shadycrew31]

This doesn't affect performance. It's on the SAI system, not the valves, which means it only effects cold start emissions and causes a CEL for failed readiness.

Pretty sure there carbon building up on the valves as well....

[NWS4Guy]

This doesn't affect performance. It's on the SAI system, not the valves, which means it only effects cold start emissions and causes a CEL for failed readiness.

He's talking to the CB on the valves issue, which does affect perf (I know you know this).

[westwest888]

You blast out the heads with crushed up walnut shells. Realistically it only costs like $900 even if expensive SF.

Sent from Samsung Galaxy S4

[SwankPeRFection]

You blast out the heads with crushed up walnut shells. Realistically it only costs like $900 even if expensive SF.

Sent from Samsung Galaxy S4

Ya, who does this that's fairly local to everyone? Nobody... I've only read of one place that does it... everyone else takes it to the dealer that closes off the valves per cylinder, pours in a softening solvent and chisels it off the valves/ports by hand. That's bs and takes too damn long.

[helix139]

Pretty sure there carbon building up on the valves as well....


He's talking to the CB on the valves issue, which does affect perf (I know you know this).

Yeah, but that isn't what the warranty extension (and the letter) is pertaining to. Audi will never warranty carbon buildup on the valves.

[NWS4Guy]

Yeah, but that isn't what the warranty extension (and the letter) is pertaining to. Audi will never warranty carbon buildup on the valves.

True, but it was what the last 10 or so comments were about...

[FatalBert]

Yeah, but that isn't what the warranty extension (and the letter) is pertaining to. Audi will never warranty carbon buildup on the valves.


True, but it was what the last 10 or so comments were about...

How is the carbon build up on our valves btw?

[shadycrew31]

True, but it was what the last 10 or so comments were about...

Yeah I am not too worried about the part thats covered under warranty... Its the part that isn't that effects engine longevity and performance that I am worried about.

Allot of us are reaching the 50k mark which is why I am looking into this. I also do not let other people work on my car because I have trust and commitment issues.

[shadycrew31]

How is the carbon build up on our valves btw?

I intend to find out in the next few weekends, I am ordering the needed gaskets and will pull everything apart.

[FatalBert]

I intend to find out in the next few weekends, I am ordering the needed gaskets and will pull everything apart.

Doing it yourself? Dont you have to pull the charger for that? pretty ballsy no?

[shadycrew31]

Doing it yourself? Dont you have to pull the charger for that? pretty ballsy no?

I rebuild Rotary engines and turbos for fun, this is a walk in the park.

[FatalBert]

I rebuild Rotary engines and turbos for fun, this is a walk in the park.

As a hobby or for a living? I cant wait to get my dream garage...

[NWS4Guy]

Doing it yourself? Dont you have to pull the charger for that? pretty ballsy no?

Yep, just have to pull the SC (which requires draining the coolant loop for this). Once done, you can use vacuum to actuate the intake runners to the open position to look right down onto the back of the intake valves.

http://www.audizine.com/forum/showthread.php/424549-Putting-Carbon-Buildup-to-rest-I-hope

[FatalBert]

Very interested to see redrocker's valves. I think he just hit 105k.

[shadycrew31]

As a hobby or for a living? I cant wait to get my dream garage...

Hobby...

There's no money in it unless you are building at least two engines a day.

[shadycrew31]

Yep, just have to pull the SC (which requires draining the coolant loop for this). Once done, you can use vacuum to actuate the intake runners to the open position to look right down onto the back of the intake valves.

http://www.audizine.com/forum/showthread.php/424549-Putting-Carbon-Buildup-to-rest-I-hope

Thats a great picture those valves look minty fresh!

[infinkc]

I intend to find out in the next few weekends, I am ordering the needed gaskets and will pull everything apart.

which gaskets? i had my charger off and didnt see any gaskets that would be 1 time use.

[shadycrew31]

which gaskets? i had my charger off and didnt see any gaskets that would be 1 time use.

I have dealt with enough vac leaks in my day.

I replace any and all gaskets I come across.

[mageiger]

I intend to find out in the next few weekends, I am ordering the needed gaskets and will pull everything apart.

Any update on this? I was just told I should have my intake valves cleaned due to rough idle/shifting and CEL. It sounds like this warranty extension doesn't pertain to the valves. I have an 09 3.2 btw and the code was p0068 which dealt with mass air flow, so maybe it isn't the valves that need cleaned

Also told dealer may be able to reflash and change the parameters which may fix the issue. Anyone had this done?

[NWS4Guy]

Any update on this? I was just told I should have my intake valves cleaned due to rough idle/shifting and CEL. It sounds like this warranty extension doesn't pertain to the valves. I have an 09 3.2 btw and the code was p0068 which dealt with mass air flow, so maybe it isn't the valves that need cleaned

Also told dealer may be able to reflash and change the parameters which may fix the issue. Anyone had this done?

This issue has zero to do with valves, it's a campaign to fix CB in the secondary air runners. They will do that under warranty, takes a day to perform, and costs you zero. If they are telling you to have the valves cleaned, they don't know what they are talking about if they haven't pulled the supercharger off to actually look down into the intake runners. If there is a CB valve issue causing this and a CEL, I would push the dealer to have something in writing prior to service that this WILL be covered under warranty.

[mageiger]

This issue has zero to do with valves, it's a campaign to fix CB in the secondary air runners. They will do that under warranty, takes a day to perform, and costs you zero. If they are telling you to have the valves cleaned, they don't know what they are talking about if they haven't pulled the supercharger off to actually look down into the intake runners. If there is a CB valve issue causing this and a CEL, I would push the dealer to have something in writing prior to service that this WILL be covered under warranty.

Hopefully the CB in the air ports is the cause. I am sure while those are getting cleaned the tech will check the valves, as well. May have to call AoA regarding the warranty extension, as I don't recall receiving a letter for my 2009.

[mjames]

Question: my dealer is saying they will only check this if the check engine light comes on, which mine hasn't. Should I call that BS? The bulletin doesn't state that.

[NWS4Guy]

Question: my dealer is saying they will only check this if the check engine light comes on, which mine hasn't. Should I call that BS? The bulletin doesn't state that.

No, they have no reason to suspect the issues is on your car unless the CEL comes on and stores a code saying so. I had mine done expressly because the CEL came on and the SAI fault was there.

[shadowaudi]

Same issue, P0491 code went off.....had it read for the secondary induction system, made an appointment finally with the local Audi here in VA for Wednesday. I am very curious to see how this turns out and hopefully they honor the warranty extension but does anyone know the actual TSB Number or should I just base it off the letter we all received? (Car has ~52k miles)

[NWS4Guy]

Same issue, P0491 code went off.....had it read for the secondary induction system, made an appointment finally with the local Audi here in VA for Wednesday. I am very curious to see how this turns out and hopefully they honor the warranty extension but does anyone know the actual TSB Number or should I just base it off the letter we all received? (Car has ~52k miles)

If you have the letter it should convey that this is known and will be taken care of, but honestly the dealership should know about it, you are not tasked with educating the dealer on their job.

[EyeCentric]

Question: my dealer is saying they will only check this if the check engine light comes on, which mine hasn't. Should I call that BS? The bulletin doesn't state that.
Mine never came on, I brought it in for rough idle at 13k and they did it, but the problem had been there since 10k. Still a little rough and it took them days to get the build up off... Said it was being stubborn! Lol

[Sukks2bu]

Got the check engine light twice this week. P0491-p0492
I never got a copy of the letter from Audi Canada.
If there is anyone in Canada that may be able to pm me a copy, it would be very helpful and appreciated.

[Sukks2bu]

Bump for Canadian friends

[jayts]

ok so I might have the secondary air system issue too, but Im TD1 and I think I can have this coded out with my APR tune that needs to be reflashed

Does this cause a performance issue, or is it only emissions at startup?

[jschrauwen]

I just came back from Audi (Canada) and they have not heard of Audi extending the warranty in Canada. I was the first person to mention it to them.
On Monday I will call Audi Canada and see what they have to say. I hope its something positive.What did Audi Canada have to say? I recently (2 weeks ago) picked up a 2008 A5 3.2










Sorry, I missed your update here.

I'm heading back up to Audi tomorrow to speak with them. Its going to be a long day for the Audi service department if they do not tell me something different.

I know they are trying to drag this process out as long as possible. The "warranty extension", must be costing them millions of dollars.

Did your CEL come back on and did they do the work? If they did do the work, where in the GTA did you get this done at.
Did you inquire about getting the valves done at the same time while it's partially dismantled?

[jschrauwen]

If there is anyone in Canada that may be able to pm me a copy, it would be very helpful and appreciated.I'll take a pm of one of those too if you don't mind.
<---- New owner (2 weeks) of a 2008 A5 3.2 and I'm quite concerned about this.

[sh!tmagnet]

I'll take a pm of one of those too if you don't mind.
<---- New owner (2 weeks) of a 2008 A5 3.2 and I'm quite concerned about this.

+1

[mjames]

I've got a CEL on and two codes it's throwing, P0491 and P0492. I'm at 85k miles on my 2010. Car runs fine except for CEL. Came on the day I was leaving my Tail of the Dragon mountain drive trip over the weekend. Have appointment at dealer in morning...

I've researched this and it looks like carbon buildup is the culprit. And that Audi should cover the cleaning up to 10 years or 120k miles. Correct? I've got the letter to show my dealer.

[AudiAdi]

I just had this happen to me. CEL came on and codes P0491 and P0492 both were recorded twice. My car is a 2010 at 75k. No other noticeable abnormalities besides the CEL. Called to make an appointment right away and could not get in until almost two weeks later. Three or four days after the initial CEL episode, CEL turned off on its own (but I did not clear the codes).

At the dealership, they confirmed pretty quickly that it's the SAI carbon buildup issue and cleaned it up under warranty.

[jshoude]

Left my Q5 2010 3.2 yesterday for an oil change with the engine light on and it was that probleme, they solved the problem under the extended warranty ( 6hrs of labor ), thanks to Audi Niquet!

[choppa76]

Can anyone verify whether or not Audi honored the warranty with a tuned engine? My light came on the other day with start. Cleared itself this afternoon. I have an APR tune and doubtful the warranty will be honored.

[engineerjet]

I just got the P0491 and P0492. I checked with Audi USA and I am covered under the carbon removal for the secondary air port warranty extension. Has anyone gotten this code and had it NOT be the carbon build up? I read it could also mean the SAI pump is going. Im going to check on the hoses, make sure everything is connected but is there anything else this code would be?

What steps can one take at home to determine if it is a carbon build up issue?

[bowdwn]

i have a 2010 b8 s4 check engine light have the P0491 n P0492 checked with Audi warranty to 193,000 or 10 years my car has 110,600kms
car going in to Audi on Thursday for them to check car ..will be interesting to see what they say... car is stock ..only mod was intake ...but stock one back on car...

[TC_S4]

Can anyone verify whether or not Audi honored the warranty with a tuned engine? My light came on the other day with start. Cleared itself this afternoon. I have an APR tune and doubtful the warranty will be honored.

If your car is tuned and it appears on their online scan, then Audi won’t cover the charges for the cleaning.

[bowdwn]

Update
I have carbon build up n dealership covering under warranty
I advised mechanic to take before n after pics of injectors
Will post results


UOTE=bowdwn;12893946]i have a 2010 b8 s4 check engine light have the P0491 n P0492 checked with Audi warranty to 193,000 or 10 years my car has 110,600kms
car going in to Audi on Thursday for them to check car ..will be interesting to see what they say... car is stock ..only mod was intake ...but stock one back on car...[/QUOTE]

[JD S4]

Have any of you that had this work done (under extended warranty TSB) been heavily/obviously modified? I'm wondering if they will honor the warranty on a Stage 2 car with cooling?

[JD S4]

If your car is tuned and it appears on their online scan, then Audi won’t cover the charges for the cleaning.

Wonder if that will hold true if I have an EPL and flash back to stock before the visit.. I think I'll try it.

[TC_S4]

Wonder if that will hold true if I have an EPL and flash back to stock before the visit.. I think I'll try it.

You can try, that what I did. Flash back to stock mode by an authorized Revo dealer and went for the carbon cleaning. However, the scan detected the tune and Audi Canada didn't want to pay the job. At that point, I had to make a decision, wrap it up with the job half done and paid for the time spent on my car or pay and have the job complet, it's around 1k cdn at the end. By the way, it's not the first time, I flashed back to stock and had jobs done under warranty, I guest Audi just evolved on their Anti-tune detector😒.

[TC_S4]

Update
I have carbon build up n dealership covering under warranty
I advised mechanic to take before n after pics of injectors
Will post results


UOTE=bowdwn;12893946]i have a 2010 b8 s4 check engine light have the P0491 n P0492 checked with Audi warranty to 193,000 or 10 years my car has 110,600kms
car going in to Audi on Thursday for them to check car ..will be interesting to see what they say... car is stock ..only mod was intake ...but stock one back on car...[/QUOTE]

I should have ask the mechanic to take a picture before and after, when I had mine done. We see a lot of intake carbon buildup before/after on the web but didn't find any before/after about exhaust carbon buildup. Can't way to see that.

[AudiS4SD]

Since I have a 2014, I didn't get this letter. Has anybody heard of 2014+ getting added to the cleaning?

Pardon my ignorance, but what are obvious signs that your car needs carbon cleaning?

Sent from my SM-G960U using Audizine mobile app (http://r.tapatalk.com/byo?rid=87676)

[TC_S4]

Since I have a 2014, I didn't get this letter. Has anybody heard of 2014+ getting added to the cleaning?

Pardon my ignorance, but what are obvious signs that your car needs carbon cleaning?

Sent from my SM-G960U using Audizine mobile app (http://r.tapatalk.com/byo?rid=87676)

No obvious signs, when time comes the cel with pop up and you bring it to the dealer.

[Snowmonkey]

I have had CEL on my 2013 (87k) pop up twice in the last few months, both times for P0491 and P0492. After reading that its not a big deal, I ignored them, but the third time i figured I should probably do something about it. I am not the first owner so I never received a copy of the letter describing the TSB and the need for warranty extension. I sent an email request to Audi of America detailing that I do not have such a letter but require it to have the warranty work performed. Will update this post when I hear back from Audi. Fingers crossed.

[SteveYem]

Since I have a 2014, I didn't get this letter. Has anybody heard of 2014+ getting added to the cleaning?

Pardon my ignorance, but what are obvious signs that your car needs carbon cleaning?

Sent from my SM-G960U using Audizine mobile app (http://r.tapatalk.com/byo?rid=87676)


I have the same questions, although mine is a 2015 model year.

[Snowmonkey]

HUGE UPDATE!

I got an email back from Audi of America regarding my P0491 fault and corresponding CEL. The "Audi Social Care Advocate" told me that if I take it to an Audi dealer and the fault is indeed diagnosed as Secondary Air System, Change over Valve or Natural Valve Leak Detection Switch, the 120k/10 year warranty extension would be covered.

[AudiS4SD]

HUGE UPDATE!

I got an email back from Audi of America regarding my P0491 fault and corresponding CEL. The "Audi Social Care Advocate" told me that if I take it to an Audi dealer and the fault is indeed diagnosed as Secondary Air System, Change over Valve or Natural Valve Leak Detection Switch, the 120k/10 year warranty extension would be covered.

Any update to the update? Were you able to get everything fixed?

[Snowmonkey]

Any update to the update? Were you able to get everything fixed?

Not yet, The weekend I was planning on taking it in didn't work out at the last minutes So i have yet to take it in. In that time the CEL has also disappeared on its own but the code should still be imprinted in the system. I also didn't have any luck getting in touch with a service technician, I'd like to speak to someone about it before they go tearing into everything an charge me extra for things I haven't asked them to do. I'm also nervous that the problem wont be with one of the two things mentioned in the letter from AoA and I'll be forced to pay out for the work.

[drivesideways]

I just had this code pop earlier in the week and I read up on everything on this wonderful forum. I then turned to this post. Happy to say that the extended warranty is active. I have a 2010 with 114k. I stopped by the dealer yesterday and they said they'd can honor it but require the MIL light to be on so they can diagnose. I couldn't do anything at the time because I had regrettably cleared it the night before. Wasn't sure if it was going to come back but sure enough it popped again on this frosty morning. I'll be stopping in tomorrow to hopefully drop it off and go from there. Very excited to potentially have the cleaning done on the house! Wondering how dirty it is in there....and if I can grab an S3 loaner. I'd settle for an A5 sportback :D

[JoeCS4]

Mine popped up as well. I have a 2010 with almost 90k miles. How did it go? I’m the second owner and just bought the car for a little over 3 months. Thanks in advance.

[IntheQ7]

I am seeing that most vehicles throwing these codes are Audi A-class or S-class. My 2015 Q7 is throwing the same codes with intermittent loss of power. Although a different year do I have the same engine as those covered by the warranty extension? How would I find out?

Sent from my SM-G955U using Audizine mobile app (http://r.tapatalk.com/byo?rid=87676)

[Snowmonkey]

So after speaking to one of two dealers within 100 miles of me, they pointed out that the letter i received from AoA only covers if those two parts are defective, and DOESN'T mention at all about covering the carbon cleaning, even though that it was is specifically called out in the letter provided to OP.

I replied to AoA with a request for clarification and an explanation that I can then bring to the dealer to guarantee coverage for the entire process, not just IF they find defective parts.

Going to contact the other dealer and see if they are more familiar with the TSB and know they can offer full coverage.

[Carguy88]

So after speaking to one of two dealers within 100 miles of me, they pointed out that the letter i received from AoA only covers if those two parts are defective, and DOESN'T mention at all about covering the carbon cleaning, even though that it was is specifically called out in the letter provided to OP.

I replied to AoA with a request for clarification and an explanation that I can then bring to the dealer to guarantee coverage for the entire process, not just IF they find defective parts.

Going to contact the other dealer and see if they are more familiar with the TSB and know they can offer full coverage.

Curious how this ended up for you?

[AudiS4SD]

Interested as well. I'm at 88k and starting to get a little concerned whether or not I'm sitting on a potentially big issue is nothing is done soon.

What are signs of pending carbon issues besides the MIL light?

[Nor_Cal_Driver]

Wanting to hear what happened to Snowmonkey also.

[AudiS4SD]

Bump.

Any updates OP?

Sent from my SM-N960U using Tapatalk

[Pawan2013]

bump

[Snowmonkey]

Wanting to hear what happened to Snowmonkey also.

Still waiting on the other engine bank code to pop. Dealer couldnt tell me much, Im going to call around and see if any other dealer shops know anything about it

[Nor_Cal_Driver]

Still waiting on the other engine bank code to pop. Dealer couldnt tell me much, Im going to call around and see if any other dealer shops know anything about it

Keep us posted. Ty.

[wes8398]

I just had this code pop earlier in the week and I read up on everything on this wonderful forum. I then turned to this post. Happy to say that the extended warranty is active. I have a 2010 with 114k. I stopped by the dealer yesterday and they said they'd can honor it but require the MIL light to be on so they can diagnose. I couldn't do anything at the time because I had regrettably cleared it the night before. Wasn't sure if it was going to come back but sure enough it popped again on this frosty morning. I'll be stopping in tomorrow to hopefully drop it off and go from there. Very excited to potentially have the cleaning done on the house! Wondering how dirty it is in there....and if I can grab an S3 loaner. I'd settle for an A5 sportback :DHow'd this turn out for you? If you have documentation showing what they did, and that this warranty covered it, I'm sure screenshots would be appreciated by many here!

[Dark-e]

Got the infamous P0491 P0492 combo. Will Audi deny this warranty due to my unitronic tune even if I flash back to stock before taking it in?


Sent from my iPhone using Audizine (http://r.tapatalk.com/byo?rid=87676)

[Snowmonkey]

Got the infamous P0491 P0492 combo. Will Audi deny this warranty due to my unitronic tune even if I flash back to stock before taking it in?


Sent from my iPhone using Audizine (http://r.tapatalk.com/byo?rid=87676)

Depends on your dealer and if the flash leaves a trace. Some dealers are cool about it and can understand that a tune has little to do with emissions systems, but then there are some that have denied differential work due to aftermarket intakes or something stupid like that. Really just depends. I would call around to various dealers and see if they have done the work before, since it is fairly complicated. Also check with Unitronic to see if their stock flash shows any traces that could pop a TD1 when Audi plugs in.

[Dark-e]

Depends on your dealer and if the flash leaves a trace. Some dealers are cool about it and can understand that a tune has little to do with emissions systems, but then there are some that have denied differential work due to aftermarket intakes or something stupid like that. Really just depends. I would call around to various dealers and see if they have done the work before, since it is fairly complicated. Also check with Unitronic to see if their stock flash shows any traces that could pop a TD1 when Audi plugs in.

Thanks for the information. I will get ahold of unitronic tomorrow and see if their flash leaves traces. If it doesn’t I’ll buy the cable detune it and I might put the factory air box back in. I have 3 Audi dealers in the St.Louis area so I’m hoping one of them will do the work.


Sent from my iPhone using Audizine (http://r.tapatalk.com/byo?rid=87676)

[Snowmonkey]

Thanks for the information. I will get ahold of unitronic tomorrow and see if their flash leaves traces. If it doesn’t I’ll buy the cable detune it and I might put the factory air box back in. I have 3 Audi dealers in the St.Louis area so I’m hoping one of them will do the work.


Sent from my iPhone using Audizine (http://r.tapatalk.com/byo?rid=87676)

Good call. Definitely call all of those dealers and be tenacious in getting past the normal phone-answering employees, they will know nothing. Bug them enough to get to the shop manager or whoever makes the decision to honor warranty, they might not care about the intake.