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View Poll Results: A8 Transmission, TC Failures / Non Failures
Torque converter failure 2015
8.36%
Torque converter failure 2016
4.18%
Torque converter failure 2017
2.09%
Transmission failure 2015
3.13%
Transmission failure 2016
0.52%
Transmission failure 2017
0.78%
No failure 2015
26.37%
No failure 2016
39.43%
No failure 2017
22.19%
Multiple Choice Poll. Voters: 383. You may not vote on this poll

A8 Failures

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Old Jan 5, 2017 | 01:32 PM
  #41  
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The results are pretty shocking so far. I thought 5% would have been bad.

It is good to see a downward trend on later model years, but I don't know if that just means they haven't had time to manifest themselves. There are a couple of recent threads on 2017s in pieces right now, and those individuals are missing from the poll.
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Old Jan 5, 2017 | 01:36 PM
  #42  
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^^^ On the other hand I see a member voted for 2017 and doesn't own a 2017. At least from what I can tell based on the previous post they made.

Last edited by Steve Garrett; Jan 5, 2017 at 08:58 PM. Reason: No need to re-quote the previous post, especially if you're the next person posting.
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Old Jan 5, 2017 | 01:46 PM
  #43  
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^^^ Yeah, I think you are right. Says he has a 2016 in a post.

Last edited by Steve Garrett; Jan 5, 2017 at 08:58 PM.
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Old Jan 5, 2017 | 01:57 PM
  #44  
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Originally Posted by Z06 1of38
Well....hopefully Black & White (currently Road Candy) will be by with his 31 user accounts to vote 31 times.

Fingers crossed
LOL, roadcandy a member for 3 days and reports a trans problem with his 2015.
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Old Jan 5, 2017 | 02:02 PM
  #45  
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Originally Posted by KrikGS
I won't vote till it's confirmed by the dealer that it is indeed TC. Should know for sure by weekend.
Makes two of us .......... Mine just went in today for noise in the rear end under acceleration
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Old Jan 5, 2017 | 02:08 PM
  #46  
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Originally Posted by Foosh
The results are pretty shocking so far. I thought 5% would have been bad.

It is good to see a downward trend on later model years, but I don't know if that just means they haven't had time to manifest themselves. There are a couple of recent threads on 2017s in pieces right now, and those individuals are missing from the poll.

Correct , and the 2017's will still be very low mileage as are the norther winter storage cars and garage queens . It may be another year or two before those start showing up as needing driveline repairs.
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Old Jan 5, 2017 | 02:08 PM
  #47  
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Originally Posted by MikeyTX
Makes two of us .......... Mine just went in today for noise in the rear end under acceleration
This could be the ring and pinion issue that is discussed in the "warble" thread. I don't think this issue is as prevalent as the TC issue. Good luck getting it fixed.
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Old Jan 5, 2017 | 02:12 PM
  #48  
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Originally Posted by Jmcdude
LOL, roadcandy a member for 3 days and reports a trans problem with his 2015.

I believe it is Arctic7, Black and White ,etc etc just resurrecting himself again.
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Old Jan 5, 2017 | 02:13 PM
  #49  
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January 29, 2016 purchase date. 4,300.00 miles. No problems. Just awesome.
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Old Jan 5, 2017 | 02:17 PM
  #50  
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Originally Posted by Jmcdude
I was just going to note the same thing. I see a nice pattern here. The first year of the A8 (2015) appears to be where most of the problems were. It would seem that adjustments were made going forward and problems have dropped substantially. This doesn't lessen the pain of 16 & 17 owners that have had problems, but I think if you removed the 2015 issues from the list the numbers would be small and this would be a side note.

I wouldn't attribute the lower instances of issues with 16 and 17 year cars to GM fixing the problem. Since most people who have the issue notice it around 10K miles, it's not surprising that 16 and 17 model year owners report fewer problems. There are plenty of reports of the problem reoccurring after the TC replacement so I'm not confident GM knows what the problem is.

Last edited by Ernest_T; Jan 5, 2017 at 02:18 PM.
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Old Jan 5, 2017 | 02:18 PM
  #51  
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Originally Posted by djnice
On the other hand I see a member voted for 2017 and doesn't own a 2017. At least from what I can tell based on the previous post they made.
True, but KrikGS w/ a 17 GS and Jairmeeg, who posted pictures of his 2016 in pieces haven't voted. Those are just the ones on pp. 1-2. Others are waiting for diagnoses before voting.

No poll is ever going to be completely accurate, but I suspect the majority are being honest.
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Old Jan 5, 2017 | 02:20 PM
  #52  
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Originally Posted by Foosh
True, but KrikGS w/ a 17 GS and Jairmeeg, who posted pictures of his 2016 in pieces haven't voted. Those are just the ones on pp. 1-2. Others are waiting for diagnoses before voting.

No poll is ever going to be completely accurate, but I suspect the majority are being honest.

I looked and think that 17 should be a 16, but that shouldn't skew the data too bad.
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Old Jan 5, 2017 | 02:25 PM
  #53  
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Originally Posted by rmorin1249
This could be the ring and pinion issue that is discussed in the "warble" thread. I don't think this issue is as prevalent as the TC issue. Good luck getting it fixed.
Heh I'll know soon enough. At least it's under warranty.

Originally Posted by Z06 1of38
Well....hopefully Black & White (currently Road Candy) will be by with his 31 user accounts to vote 31 times.

Fingers crossed
Are you sure it isn't the Russians ...............

Originally Posted by drobbins
I'm glad to see this poll
I'm negotiating for a car right now and I've been pondering whether I was just setting myself up for a problem
negotiations continue
Originally Posted by h3mpking
Some have had issues, and some have not. Tough to say, but will say I love my A8! I beat on it and abuse it every time out and it feels great. Without a doubt there are some trouble kids out there with some of the TC's and transmissions, but if mine broke today, I would get it fixed and keep on driving. It is that good in my opinion. Good luck on your negotiations!
Spot on. '16 Stingray, no issues in 38k. '15 Z51, no issues in 32k. '16 Z06 ....... We will soon know what is making the grinding noise under acceleration. To bad the new 10 speed won't fit.

Last edited by Steve Garrett; Jan 5, 2017 at 09:19 PM. Reason: Merged Posts-please use the Multi-Quote button (middle icon) in the lower right hand corner of each post to make your response look like this.
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Old Jan 5, 2017 | 02:51 PM
  #54  
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Is this related to Z06 or just GS and Stingray?
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Old Jan 5, 2017 | 03:12 PM
  #55  
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Originally Posted by Ernest_T
Doomed? No, but it is a crap shoot. I think the odds are stacked in your favor though. A significant number of cars exhibit the symptom, but it's definitely a small percentage of overall A8 equipped cars.
There's also another group who are not seeing symptoms now but will as they accumulate miles. We won't know how many will move from the no-problem to the problem category for perhaps years down the road. There will be some, but not vice versa, so the problem group will surely increase.

For me that doesn't bode well for the prospects of resale value and the demand for buying used A8 C7s in the future. That's why I'm working on a trade now to a 2017 M7 while the getting is good. Some can't live with a manual but I prefer them, which makes a transition easier away from the A8 but within the marque than for some.

Last edited by iclick; Jan 5, 2017 at 03:31 PM.
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Old Jan 5, 2017 | 03:27 PM
  #56  
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Originally Posted by demasterz
Is this related to Z06 or just GS and Stingray?

Any C7 A8 regardless of model.
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Old Jan 5, 2017 | 03:28 PM
  #57  
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No problems to report at this time. 20,000 miles on my 2015.

Originally Posted by iclick
There's also another group who are not seeing symptoms now but will as they accumulate miles. We won't know how many will move from the no-problem to the problem category for perhaps years down the road. For me that doesn't bode well for the prospects of resale value and the demand for buying used A8 C7s in the future. That's why I'm working on a trade now to a 2017 M7 while the getting is good. Some can't live with a manual but I prefer them, which makes a transition easier away from the A8 but within the marque than for some.

You know this, how?

Last edited by Steve Garrett; Jan 5, 2017 at 09:19 PM. Reason: Merged Posts-please use the Multi-Quote button (middle icon) in the lower right hand corner of each post to make your response look like this.
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Old Jan 5, 2017 | 03:38 PM
  #58  
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^^^ Because no one can predict the future?

Last edited by Steve Garrett; Jan 5, 2017 at 09:00 PM. Reason: No need to re-quote the previous post, especially if you're the next person posting.
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Old Jan 5, 2017 | 03:39 PM
  #59  
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Originally Posted by rmorin1249
My 2016 had the TC and stator support replaced at 8500 miles.
What symptoms was the stator shaft support supposed to correct?

Originally Posted by iclick
We won't know how many will move from the no-problem to the problem category for perhaps years down the road.
Originally Posted by rkhegler
You know this, how?
Like Earnest T said, who can predict? It would seem logical that some will have problems as the months and years progress, especially those with 2016 and subsequent cars, so how would we know ahead of time?

Last edited by Steve Garrett; Jan 5, 2017 at 08:59 PM. Reason: Merged Posts-please use the Multi-Quote button (middle icon) in the lower right hand corner of each post to make your response look like this.
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Old Jan 5, 2017 | 04:06 PM
  #60  
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Originally Posted by iclick
What symptoms was the stator shaft support supposed to correct?
I think that is to fix the delayed engagement. My car never exhibited that symptom and I didn't think it shifted very harshly except when very cold. I was pretty happy with the performance of the A8 when it wasn't in V4 mode.
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