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  1. #1
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    New 2010 A4 2.0T Quattro Owner with some issues

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    Hi All,

    To start I have used the search function and I have read a lot of posts on here regarding the B8.

    I am having some issues with my 2010 A4 2.0T Quattro (with 62k miles) which I am suspecting is the oil consumption/piston issue.

    Currently, on a cold start RPMS sit at 1200 with shaking (1200 rpm is normal from what i read and after the warm up period it drops to 700 which is also normal). Some days the CEL will flash and I will shut off the car and turn it back on. Other cold starts the CEL will just come on.

    The CEL's i have received have been P0300 and P0301. I swapped coils on the Cyl 1 & 2. Light came back on for P0301. Changed spark Plug in Cyl 1. Light came back on for P0301. This P0301 is what makes me think pistons....

    However, lets say I drive for 20 mins and clear the CEL the light will not come back on again until the next cold start. Which I have no idea why that would be and kind of makes me think a vacuum leak....but it doesnt throw any codes for a leak.

    I ordered a new set of Coils and Plugs from ECS that came in last night. I will install these as my next step. I also ordered a new MAF (this is was throwing money at the car and I figured @ 8 years it could use one anyways).

    Extended Warranties for the Car:
    Fuel Injector
    Timing Chain
    Airbag
    The Oil Consumption was 8 years and 80k miles.....and I am 4 months past that so it is technically expired but I have seen people on here who have still received help at no cost.

    When I take the care into Audi (for an oil change) how should I work my communication regarding the above extended warranties? (this is my first time having to ever use a warranty). Also, how do I bring about the oil consumption as it is drinking some oil?

    I know there is the carbon cleaning that needs to be done as when I get on the gas I can see a light plume of dark exhaust and my exhaust tips are caked black. However, the complex I live in doesnt allow car maintenance in the garage. Anyone know a reasonably priced shop in the SF bay area to perform this?

    Thanks in advance and look forward to future discussions. :)

  2. #2
    Veteran Member Four Rings pierreb's Avatar
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    Sep 15 2006
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    Quote Originally Posted by 80HDGUY View Post
    Hi All,

    To start I have used the search function and I have read a lot of posts on here regarding the B8.

    I am having some issues with my 2010 A4 2.0T Quattro (with 62k miles) which I am suspecting is the oil consumption/piston issue.

    Currently, on a cold start RPMS sit at 1200 with shaking (1200 rpm is normal from what i read and after the warm up period it drops to 700 which is also normal). Some days the CEL will flash and I will shut off the car and turn it back on. Other cold starts the CEL will just come on.

    The CEL's i have received have been P0300 and P0301. I swapped coils on the Cyl 1 & 2. Light came back on for P0301. Changed spark Plug in Cyl 1. Light came back on for P0301. This P0301 is what makes me think pistons....

    However, lets say I drive for 20 mins and clear the CEL the light will not come back on again until the next cold start. Which I have no idea why that would be and kind of makes me think a vacuum leak....but it doesnt throw any codes for a leak.

    I ordered a new set of Coils and Plugs from ECS that came in last night. I will install these as my next step. I also ordered a new MAF (this is was throwing money at the car and I figured @ 8 years it could use one anyways).

    Extended Warranties for the Car:
    Fuel Injector
    Timing Chain
    Airbag
    The Oil Consumption was 8 years and 80k miles.....and I am 4 months past that so it is technically expired but I have seen people on here who have still received help at no cost.

    When I take the care into Audi (for an oil change) how should I work my communication regarding the above extended warranties? (this is my first time having to ever use a warranty). Also, how do I bring about the oil consumption as it is drinking some oil?

    I know there is the carbon cleaning that needs to be done as when I get on the gas I can see a light plume of dark exhaust and my exhaust tips are caked black. However, the complex I live in doesnt allow car maintenance in the garage. Anyone know a reasonably priced shop in the SF bay area to perform this?

    Thanks in advance and look forward to future discussions. :)
    So itís had the timing tensioner done or not? If not, I would worry about timing skip as your cause. Do you have access to VCdS to check your phase adjustment?

  3. #3
    Registered Member One Ring
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    No and No.

    Those are the warranties that apply to the car. I have to take it in and ask.

    I only have a cheap-o 20$ CEL reader. Which got the job done on most cars but on here I am seeing that the VAGCOM is the way to go.

  4. #4
    Established Member Four Rings Spawne32's Avatar
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    You could have any one of a number of issues going on, oil consumption is one, but wouldn't cause you to misfire, the flashing light on the dash is random misfires being recorded, it makes the MIL light flash. Given that you are seeing black puffs out the back, you have one of two possibilities, either the engine is running rich from a faulty injector which is causing a misfire on one or more cylinders (multiple injectors being problematic) or oil consumption is causing it to burn oil, but generally speaking wouldnt cause a misfire unless it got to a point to foul the plugs. Have you measured the rate of consumption of oil yet?

  5. #5
    Registered Member One Ring
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    Hello Spawne31, thanks for the insight.

    I agree about the running rich. I havent done the measure rate of consumption yet. I have driven the car 500 miles since purchasing and changing the oil myself. I will add parts I purchased then take it in to the dealer for an oil change and bring up the issue in hopes of them measuring.

    As you know there is not a dipstick....and 63$ on ECS is kind of steep but likely needed :( . The Onboard computer last i checked had the oil at full. My understanding is that it will either show full or empty...if empty you need to add half a quart at a time and recheck until it is full again.

  6. #6
    Established Member Four Rings Spawne32's Avatar
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    There are other dipsticks besides the expensive ECS ones, ill have to find the part number for mine, I think i paid 10 bucks.

  7. #7
    Active Member One Ring
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    Coldstart misfires can be caused by dirty intake valves as well. Does the car run normally when warm and restart easily when warm?

  8. #8
    Established Member Four Rings Spawne32's Avatar
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    dirty intake valves are almost ALWAYS a culprit at some point every 50k miles

  9. #9
    Registered Member One Ring
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    Quote Originally Posted by Spawne32 View Post
    There are other dipsticks besides the expensive ECS ones, ill have to find the part number for mine, I think i paid 10 bucks.
    Is this the one? https://www.eeuroparts.com/Parts/872...k-06J115611EH/

  10. #10
    Established Member Four Rings Spawne32's Avatar
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    Quote Originally Posted by 80HDGUY View Post
    that's the one lol

  11. #11
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    Cool, thanks, I didnt come across any threads about this while I was searching earlier....everyone linked the ECS website.

    If anyone else sees this post looking for the dip stick I purchased it from amazon. Part#s 06J115611L or 06J-115-611E. Cost $15.55 shipped.

    Ill keep you guys posted on progress with the things I swap out so the thread (hopefully) comes to a resolution.

  12. #12
    Senior Member Two Rings Quattro420's Avatar
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    If your complex doesnít allow you to do work yourself and your looking for a shop and you have fuel injector warranty still then Iíd go to Audi dealership, drop car off night before your appointment and then let them put a fuel injector in it under warranty paying for all gaskets and seals removing and installing the intake manifold and then they charge you for a carbon cleaning.

  13. #13
    Established Member Two Rings hpmurdarah's Avatar
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    Damn if ur worried about $63 for a dipstick possibly Audi isnít the right choice of car for u!


    Sent from a place far far away!!

  14. #14
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    Changed the plugs and coilpacks today.

    While the car is in drive there is minimum shake or vibrations. However, in neutral or park it kind of feels like it is about to stall out and catches itself again. I took a video where it can be heard but will have to upload from my laptop.

    Ill take it in for an oil change and injectors this week.

    I think 63$ is absurd for the dipstick when its shown on the OBC, yes. The 48$ i saved buying it elsewhere is a full tank of gas but to each their own.

  15. #15
    Established Member Four Rings Spawne32's Avatar
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    63 bucks for any dipstick is insane, but some guy's fancy themselves ballers on here lol

  16. #16
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    Same issue this morning. It wasnt as rough of an idle as previously though. But CEL came on solid with P0300 and P0301 within one minute of starting her.

    Oil dipstick came in last night which should help me track oil consumption to a degree in the meantime.

    Next cold start I will unplug the MAF so see if there is any change.

    At this point I am thinking fuel injector(s), carbon build up, or piston issues. Will take her in towards the end of the week and keep yaíll updated.

  17. #17
    Senior Member Three Rings keiffr's Avatar
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    Quote Originally Posted by 80HDGUY View Post
    Anyone know a reasonably priced shop in the SF bay area to perform this?
    Where in the Bay Area do you live? There are a couple of Audi specialists in the Bay Area - 034Motorsport in Fremont, JHM in Lathrop, Sonoma Autowerks in Petaluma.
    2011 A4 2.0T TFSI Quattro P+/ Phantom Black
    IE Stage 1 / A5 S-Line Y-Spoke 19x8.5 Wheels Offset: ET32 / 255/35/19 Hankook Ventus V12 evo2 Tires/ Solowerks S1 Coilovers

  18. #18
    Active Member One Ring audiyadosir's Avatar
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    I have a rough idle again today for the first time in a long time and Iím pissed. Iíve already done so much to repair a fuel economy issue I know itís gotta be a leak from the PCV valve down to the turbo and Iím getting the part today. I just spent the last week installing axle boots and performance brakes and pads on the front. Iíd done the back a few months ago, but ran into problems with the front right axle. I have the business card of someone that says ďWe Fix Audis!Ē Iíll find it and share ASAP. In the meantime...

    Howís your MPG? Has it been crap, too? I live in SF and I drive 500 miles/week in the city and across Bay Area. I discovered my dash was wrong on the average MPG. I determined this by using a gas fill up log on GasBuddy. Give it a try?!

    I started firing the parts canon at my 2009 Audi A4 Quattro Avant 2.0T to handle that and a rough idle, which resulted in getting the avg weekly MPG fuel economy up to 15.9 from 11.2 MPG city and at 29 HWY (See photo )



    I bought the car with 82k miles last year, single owner and also had a bit of a rough idle with the crap MPG. I started in on the air intake, then went to fuel. Filled the parts canon with a 1) new MAF sensor (I have an extra if you wanna buy cheap?) 2) a new fuel rail pressure sensor (the one mounted on the rail closest to the front of engine), 3) removed the intake manifold, cleaned it, tested the high grade plastic POS for leaks and saw it was all good including actuator arm and throttle body 4) replaced the IM gasket 5) checked the vacuum system to make sure it was pushing and pulling air in the right places and all is good, 5) cleaned the back of my intake valves with a copper wire brush on a long twisting screw driver socket thing and reinstalled IM 6) cleaned valves later with SeaFoam, getting excellent power increase, but still crap MPG. I had huge power gains though, so maybe start there? 7) cleaned fuel injectors and used VCDS and my VAG HEX2 cable to test. I had two spray problems and one injector partially stuck open - eeekk! 8) replaced all fuel injectors, rings and Teflon seals, 9) replaced fuel filter in tank 10) replaced the HPFP and o-ring with a HPFP that failed within 3 weeks. This came after changing oil about 5 times bc it was getting/had leak gas from the HPFP in it which was also throwing off O2 sensor and giving me a P2188 CEL and code 11) changed HPFP again with a pump from FCPeEuro.com so if it fails theyíll replace it and things for a lot better 12) I changed the PCV valve/oil accumulator AGAIN last night, but this new rough idle remains <sigh> and sheís burning oil pretty bad, too.

    <sigh> <sigh>

    So, Iím gonna change the breather hose from the pcv to the turbo before I go for the O2 sensor. I cannot pinpoint a leak in vac or boost even with soap and water, smoke, brake cleaner, clogging intake and TIP and testing with pressure. I removed the oil cap yesterday and it had no effect on engine. Before it would jump and sputter and misfire if pulled, same with oil dipstick vent. Now I vent the pcv to atmosphere and plug the IM where the PCV used to go until
    I changed it last night. Rough idle barely noticeable anymore, but itís there.

    If you wanna meet up and take a look together to troubleshoot your idle issues Iím happy to do so. Iíve been working on my Audiís since my first one, a green 1997 A6 100 Avant. Loved that car soooo much. Iím not a mechanic and I wonít fix your car for you, but Iíve done pretty well so far on my cars and brainstorming in person is good. Iíll PM you my digits. Let me know? Dogs gotta run shortly so Iíll be out and about, three dogs in the hammocked back seat, cold, smoke and wildfire haze wind blowing through our hair, loving life because I have an Audi thatíll last me 20 years like my A6. Itís a matter of paying attention, prevention and then thereís that parts canon. Hahaha. Hope this helps somewhat? Cheers!!



    Sent from my iPhone using Tapatalk

  19. #19
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    Installed a new MAF. Idle is a little smoother but still rough. CEL still comes on during cold start. No change.

    I drove an hour to where my car was service by the original owner to get records of work done. I called and they said to drive up. I drove up and they said it will be emailed. No email and now they are saying they cant give me service or warranty info because it is against the law/bureau of automotive repair.....yet during my first call they told me certain items they had done but some how cannot print it for me and redact previous owners info...despite me having it. Kinda pissed.

  20. #20
    Veteran Member Three Rings Roadtrippn's Avatar
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    I think you need a carbon cleaning. I had this issue back in 2014. The cel would flash and i had all kinds of misfire codes. This was during 1 of every 2 cold starts I'd say. The car ran pretty well once it warmed up. I got audi to cover a carbon cleaning under the CPO warranty.
    2011 A4 2.0TQ 6MT - 2015 Motor, CTS K04, APR Quad, AWE DP, ECS intercooler,ECS LWFW/Southbend Edurance clutch,Vogtland coilovers, SPC control arms, 20% tint, 10'' JL Audio sub

  21. #21
    Registered Member One Ring
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    Yea I suspect Carbon buildup, faulty fuel injector, or faulty HPFP.

    I am taking it into the dealer tomorrow morning. I want them to see the numbers through their computers on the injectors to cover under warranty if it it turns out to be them. Also want them to see the timing chain and if it needs to be covered under warranty. I will also bring up oil consumption.

    As always, I will keep you all posted.

    So as of now, spark plugs, coilpacks, and MAF are not the fix.....for me at least.



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