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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > Audi SUVs (Q7 & Q5) and other V6 TDIs

Audi SUVs (Q7 & Q5) and other V6 TDIs Discussions area for Audi Q7 and Q5 TDI (2009+ in Canada & the US) as well as others with the V6 TDI such as the A6, A7 and A8 sedans.

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Old June 5th, 2018, 19:08   #16
Tsch125
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I am super frustrated about the situation. I test drove a used 2014 Q7 TDI from their lot tonight and it didn't do what mine does. They said there's nothing wrong with mine ("no faults in ECM or TCM") and nothing they can do about it. I think they just don't know what to do but I feel like something's still not right. Likely not their fault, maybe they don't get good support from corporate. That was the sense I got in January when I had the fix completed.
Anyone else have anything to weigh in with? Suggestions?
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Old June 6th, 2018, 13:43   #17
MEgearhead
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On our '15 I've noticed some surging at slow speed when alternating between coasting and very light power. Leaving our neighborhood there's a slight grade that's too steep for continual power, but not steep enough to coast or require brakes. I have not noticed it with constant slight power. It's my wife's car so I'll ask her. BTW, do you notice the lag in throttle response if you have to get into it right after letting off?
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Old June 6th, 2018, 13:45   #18
MEgearhead
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Meant to ask:. Do you have VCDS?
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Old June 8th, 2018, 18:13   #19
Pittdawg
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I've posted this a few times now but I just installed a Sprintbooster on my Q5 TDI and it really helps speed up and smooth out the throttle response (i.e. much more linear).
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Old August 7th, 2018, 21:09   #20
Tsch125
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Sorry for the late reply but my issue was resolved by simply resetting the throttle/transmission by myself. It took all of 20 seconds! Still baffled the dealer did not suggest or perform this simple procedure.
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Old September 21st, 2018, 04:35   #21
RebelTDI
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My 2016 Q5 TDI had the emissions a few months ago and we probably put around 1000 miles on it. DPF light came on yesterday. Taking it in today. About 37K on the odometer. Perhaps a sensor gone bad? We'll see...
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Old September 22nd, 2018, 05:05   #22
mike
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Rebel, how did you make out?
What dealer?
Looking for a Boston area dealer who can do my emissions fix.
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Old September 22nd, 2018, 05:07   #23
RebelTDI
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No word yet from dealer. My wife drives the Q5 most of the time, which winds up being a bunch of short trips. If these cars do more regens post emissions fix, i suspect the DPF light is going to come on more frequently. The light eventually went off, so I suspect it just needed a long drive to finish the regen. I wonder if they'll be able to tell me the ash load in the DPF when I pick it up.
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Old September 22nd, 2018, 05:09   #24
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Quote:
Originally Posted by mike View Post
Rebel, how did you make out?
What dealer?
Looking for a Boston area dealer who can do my emissions fix.
It's at Westwood Audi. They treat me very well, always provide a loaner, and do good work.
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Old September 25th, 2018, 18:43   #25
MEgearhead
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As a point of reference, our Q7 right after the mod had interrupted regens frequently. We're talking a few times a week. Now (8 mo later) they are far less frequent. Maybe once a month. Prior to the mod none. We never knew when it did a regen. Hope it works out well for you.
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Old September 26th, 2018, 07:50   #26
RebelTDI
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Well, no problems found, which is good. I think my solution will be to take the Q to work once a week. With an hour commute each way that should provide plenty of time for a regen. Cheers!
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Old October 2nd, 2018, 19:24   #27
MEgearhead
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Good to hear! Driving them more is always a good thing. It's also best to not baby them. Our first Q7 we bought used. It would throw a NOx sensor code regularly, but after driving it for a while, (often aggressively) it never came back until Audi bought it back. Similiar experience with my 2005 Passat, but it was limp mode. Bottom line: enjoy it!
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Old April 29th, 2019, 10:31   #28
ivoking
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Quote:
Originally Posted by Tsch125 View Post
I am super frustrated about the situation. I test drove a used 2014 Q7 TDI from their lot tonight and it didn't do what mine does. They said there's nothing wrong with mine ("no faults in ECM or TCM") and nothing they can do about it. I think they just don't know what to do but I feel like something's still not right. Likely not their fault, maybe they don't get good support from corporate. That was the sense I got in January when I had the fix completed.
Anyone else have anything to weigh in with? Suggestions?
I am having similar issues, the one on the lot has probably had the adaptations reset recently so drives better.

I loved my A6 since buying it, the torque, responsiveness and fuel economy were outstanding. For background purposes, I lived in Cincinnati for the 2 years I owned it at first. Last May, I was in process of moving to Denver, CO. 2 days before the move, I got the "fix" done, in Cincinnati, and didn't really get to drive the car much before loading it on the back of the truck to Denver.

When I arrived here in Denver, and driving for a few days, I could tell something was off. Things got progressively worse as the car became a completely different car. It has zero power after depressing the gas pedal (esp when coming out of a turn), then 3-4 sec later, when it is already too late, it gives too much power after revving up and becomes almost hard to control. It hesitates and feels jerky (engine surges) when first started and at low RPMs in gears 2-3. Pulling out in front of traffic is a gamble every day as you are hoping for power to kick in. My wife refuses to drive my car because of the way it behaves now.

I took the issue up with Audi of America last Summer. They asked me to go to a dealer and have it checked for problems. I went to Audi Denver and they found no fault codes, although one service person told me in confidence that they are having a lot of issues with these "fixed" 3-liters around here. But surprisingly the car drove relatively fine for a day after getting it back from the dealer. Few days later problems resurfaced. I didn't have time to mess with the situation then and Audi of America closed their case. In the meantime both oxygen sensors went out (at different times), covered under the extended warranty, and both times it went to the dealer, it drove much better for a day after getting it back. Recently I was at Audi Denver for the 45k mi service, and following it I decided to go to an independent Audi mechanic near my house for advice. They drove the car and said - a car should not drive like this and altitude cannot be blamed for this behavior. He did go ahead and "reset adaptations on the engine and transmission" which seemed to fix the problems. Again it drove well for a day and problems re-appeared and continued to get worse after the engine and transmissions were given time to "re-learn" whatever the hell they are learning with driving.

Finally I just contacted Audi of America again for advice and help, although I doubt any will be forthcoming. The rep will do some research and get back to me in a few days. I would happily give back the $ to get the old car back. Without hesitation. But that is not an option, obviously. I am also hesitant to lose the extended warranty at this point because what they did to these things seems like a situation begging for major problems to appear down the road. For example, part of the "fix" was installing a new oxygen sensor, according to the booklet, which for me was May 2018. Since then I have had both front and back O2 sensors go out (one in November 2018, another in December 2018).

Any advice on what one should do here? Has Audi helped anyone in this type of situation before? Is there a tune of sort available that could help me, yet not void the extended warranty? Should I contact an attorney as I feel like I have been outright cheated with their promise of "the potential change in sound will not result in any noticeable changes to the driving characteristics of your vehicle". This is an outright lie in my experience. I don't care about decreased fuel economy, I don't care about revving higher before shifting during warm up, but I do care about car being an absolute piece of crap to drive. This past weekend I looked into trading it in, but am currently being offered sub $20k for it! Not a financial hit I am willing to take at this time. I can't sell it to another individual locally as it would not be fair.

Any advice/help is greatly appreciated.
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Old April 29th, 2019, 11:42   #29
Huskies2710
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Quote:
Originally Posted by ivoking View Post
Any advice on what one should do here? Has Audi helped anyone in this type of situation before? Is there a tune of sort available that could help me, yet not void the extended warranty? Should I contact an attorney as I feel like I have been outright cheated with their promise of "the potential change in sound will not result in any noticeable changes to the driving characteristics of your vehicle". This is an outright lie in my experience. I don't care about decreased fuel economy, I don't care about revving higher before shifting during warm up, but I do care about car being an absolute piece of crap to drive. This past weekend I looked into trading it in, but am currently being offered sub $20k for it! Not a financial hit I am willing to take at this time. I can't sell it to another individual locally as it would not be fair.
Any advice/help is greatly appreciated.
A google search tells me you have diesel emissions in Colorado. Doing a delete of the system is then out of the question for you. Secondly, I just got a custom tune performed. I had a free audi care checkup. I was also testing the water to see if they would find the tune or not. Well they did. I knew they probably would, but I can't make use of the warranty anymore. Something I knew before doing the tune and was willing to accept. Not mad at all but glad I know how it would work out if something were to arise.

-Option 1 would be to stay on Audi to fix this under the warranty program.
-Option 2 say goodbye to the warranty, and get the car tuned and worked on by an independent shop. Which means you are footing the bill on everything.
-Look into the lemon laws as a third though outlandish idea?
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Old April 29th, 2019, 14:21   #30
ivoking
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Quote:
Originally Posted by Huskies2710 View Post
-Option 1 would be to stay on Audi to fix this under the warranty program.
-Option 2 say goodbye to the warranty, and get the car tuned and worked on by an independent shop. Which means you are footing the bill on everything.
-Look into the lemon laws as a third though outlandish idea?
Thank you. Between 1 and 2, I am currently leaning toward 1 as I am too cheap to foot the bill for a car this expensive to fix. If that doesn't work, I don't know what I will do... probably keep driving it and grumble about it every single day.
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