Timing logs - drop in boost @ WOT?

[Avned]

Hi guys,
Need some insight from those smarter than me in this area. I did some logging since I was curious about the drop in boost when shifting from 2>3 or 3>4 when in WOT @ redline. The logs are showing some timing pulled up to 6 degrees in some cases. Is this due to the APR tune or perhaps because its so dang hot outside (93+, 4000+ DA)? I'm currently running the 93 file with 91/100 octane mix in the tank (6 gal 100 / 10 gal 91). I've noticed this drop in boost using the 91 and 100 files as well. No timing is pulled when just regularly cruising. Will an AMS cooler help with this? Thoughts?

[ke116ngc]

Sub'd


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[Avned]

I've been trying to figure out what's going on with this boost surge. Found acceleration videos of others showing the boost gauge in-dash and they didn't have the same boost drop between gears. Has me wondering what's really going on. I used my VAGCOM to clear some softcodes also to be sure that wasn't the issue. But that did not seem to help. There is one lingering code that does not seem to clear. Anyone know what it is?

03-ABS Brakes -- Status: Malfunction 0010
05-Acc/Start Auth. -- Status: Malfunction 0010
13-Auto Dist. Reg -- Status: Malfunction 0010
22-AWD -- Status: Malfunction 0010
28-HVAC, Rear -- Status: Malfunction 0010
34-Level Control -- Status: Malfunction 0010
46-Central Conv. -- Status: Malfunction 0010
5F-Information Electr. -- Status: Malfunction 0010
8B-Adaptive Cruise 2 -- Status: Malfunction 0010
BA-Motor Mounts -- Status: Malfunction 0010 (Cannot clear)

Address BA: Motor Mounts (J931) Labels: 4H0-907-145.clb
Part No SW: 4H0 907 145 HW: 4H0 907 145
Component: AEM - LEAR H05 0006
Revision: 00001001 Serial number: 97804001863404
ASAM Dataset: EV_AEMLearAU64X 002014
ROD: EV_AEMLearAU64X.rod
VCID: 66C3C3F799338F0EE4-8032

1 Fault Found:
1294 - Actuator 1 for Drivetrain Mounts
C1131 07 [009] - Mechanical Failure
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 1
Fault Frequency: 1
Reset counter: 180
Mileage: 60089 km
Date: 2016.06.02
Time: 15:11:01

Meanwhile, I will wait to hear back from my APR dealer to see if he knows anything.

[jrsAudiA6]

I've been trying to figure out what's going on with this boost surge. Found acceleration videos of others showing the boost gauge in-dash and they didn't have the same boost drop between gears. Has me wondering what's really going on. I used my VAGCOM to clear some softcodes also to be sure that wasn't the issue. But that did not seem to help. There is one lingering code that does not seem to clear. Anyone know what it is?



Meanwhile, I will wait to hear back from my APR dealer to see if he knows anything.

To me, that would seem to indicate you have a bad motor mount. I would have the dealer look at since it appears you are still under warranty.

[Avned]

To me, that would seem to indicate you have a bad motor mount. I would have the dealer look at since it appears you are still under warranty.

Do you think this would solve my boost issue? Or just clear this code?

[jrsAudiA6]

Do you think this would solve my boost issue? Or just clear this code?

I doubt a bad motor mount will affect your boost. try and see if the boost issue is present on your 91 octane file. That may help figuring out what is going on.

[Avned]

I doubt a bad motor mount will affect your boost. try and see if the boost issue is present on your 91 octane file. That may help figuring out what is going on.

I'm currently running the 91 file and it is doing the same thing. It's not pulling as much timing but still drops boost at shift points.

[jrsAudiA6]

I'm currently running the 91 file and it is doing the same thing. It's not pulling as much timing but still drops boost at shift points.

I would talk to APR. Also you probably want to log Input air temp as well.

[MadAboutCars]

The engine has several limp modes of varying degrees. There is a good possibility that the engine mount fault code is causing the issue you are seeing.

[Avned]

The engine has several limp modes of varying degrees. There is a good possibility that the engine mount fault code is causing the issue you are seeing.

I'm going in to my APR dealer today to get flashed back to stock so I can get to Audi to replace this. He seems to think it's the Las Vegas heat that is causing the pull back not the mount. But we'll see. I hope to get this resolved before my stage 2 DPs and AMS cooler come in.

I'm still curious how a motor mount could go bad this early. Has anyone else experienced a motor mount replacement?

[MadAboutCars]

I've read about several cases of 2013 S6 engine mount failures. I think they must have had a bad batch around that time. They are active engine mounts that have adjustable stiffness.

[Avned]

I've read about several cases of 2013 S6 engine mount failures. I think they must have had a bad batch around that time. They are active engine mounts that have adjustable stiffness.

Thanks for the information!

[ke116ngc]

Jfeger, here on AZ C7 forum, just got this same error and had the dealership replace the malfunctioning mount on his 2013 S7, 35k on the car. He described to me many improved benefits after it was replaced. However, none related to boost I believe. PM him if you wish for more details.


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[Avned]

Jfeger, here on AZ C7 forum, just got this same error and had the dealership replace the malfunctioning mount on his 2013 S7, 35k on the car. He described to me many improved benefits after it was replaced. However, none related to boost I believe. PM him if you wish for more details.


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I will thanks for in the info.

[jfeger]

Jfeger, here on AZ C7 forum, just got this same error and had the dealership replace the malfunctioning mount on his 2013 S7, 35k on the car. He described to me many improved benefits after it was replaced. However, none related to boost I believe. PM him if you wish for more details.


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PM replied. For the others, I had a bit of a lurching situation when I was pulling in or out of a parking spot. It was most noticeable in reverse. While not 100% smooth as I would expect, the lurching is significantly improved after the mount was replaced. The tech suggested it was possible the extra movement in the mount and engine could have resulted in the over and under correction of power from the engine at idle under load. Not a guarantee, but a logical thought, and the problem is much improved since the swap.

[Avned]

Quick update, APR responded with that timing will be pulled when not in AMAX. My APR dealer also is confident that our desert heat is causing power reduction as well. Which of course our motors are very sensitive to heat. Hopefully, the AMS cooler that is coming in next week will alleviate that.

Finally, my Audi SA just contacted me and confirmed that the passenger side mount was bad and would be replaced under warranty. Better yet no mention of the APR tune or TD1! whew.

[jfeger]

Quick update, APR responded with that timing will be pulled when not in AMAX. My APR dealer also is confident that our desert heat is causing power reduction as well. Which of course our motors are very sensitive to heat. Hopefully, the AMS cooler that is coming in next week will alleviate that.

Finally, my Audi SA just contacted me and confirmed that the passenger side mount was bad and would be replaced under warranty. Better yet no mention of the APR tune or TD1! whew.

I thought AMAX was only on the ZF. Is it also on the DSG? Or am I backwards? I swear I saw posts on RS7's referring to AMAX from the APR guys.

[Avned]

I thought AMAX was only on the ZF. Is it also on the DSG? Or am I backwards? I swear I saw posts on RS7's referring to AMAX from the APR guys.

AMAX is for DSG as well. I don't know if it comes stock, but I know it's an advertised feature of the APR TCU tune.

[MadAboutCars]

Erm! Amax is ZF only.

[tonymission]

How did you get these logs exactly in this format? Vagcom cable or APR dongle? I'd love to do some runs and get this data.

Erm! Amax is ZF only.

Yup. The DSG is launch control 'LC'. :)
Essentially the same outcome: Optimal launch for each car.

[Avned]

Hmm I guess I was not aware of the different terminology. But yeah I guess it tries to do the same thing

According to Apr's website on the S6:

Utilization of launch control results in the transmission entering the maximum acceleration mode. During this mode, intervention between a shift is minimized, resulting in faster acceleration that keeps the driver planted to the back of his or her seat. The delay typically present after lifting the brake and beginning of the physical launch has been improved for a more immediate response.

How did you get these logs exactly in this format? Vagcom cable or APR dongle? I'd love to do some runs and get this data.

I used the APR dongle to to data log. It exports to a text file. The data is hard to read and decipher with this format so I import it into Excel where you can make it look all pretty and clean it up for viewing purposes. HTH

[MadAboutCars]

The S6/7 doesn't do long silly farts between gears like the RS7 does. The whole reason for having the DSG is for fast gear changes. Manual mode is the fastest gear change and launch control has no effect on this.

I personally think APR is showing some kinks in their armor at the moment, with all of the issues going on.

[Xtek]

I had my motor mounts fail as well. Apparently its common and Audi knows about it.

[playwithonehand]

Quick update, APR responded with that timing will be pulled when not in AMAX. My APR dealer also is confident that our desert heat is causing power reduction as well. Which of course our motors are very sensitive to heat. Hopefully, the AMS cooler that is coming in next week will alleviate that.

Finally, my Audi SA just contacted me and confirmed that the passenger side mount was bad and would be replaced under warranty. Better yet no mention of the APR tune or TD1! whew.

Hey mate

So did you fixed the timing issue, was it resolved by ams cooling or replacement of motor mount?

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[Avned]

Hey mate

So did you fixed the timing issue, was it resolved by ams cooling or replacement of motor mount?

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Yes I did actually. Though, I can't pinpoint whether it was the motor mount replacement or the AMS cooler or both since I didn't get a chance to log between the two. But now my logs have almost no ignition retard! Still a bit of dip in boost though between shifts at redline, not as bad as before though. But I'm assuming it's the heat (100+F).