Sconn

I don't want to beat a dead horse here. I think at this point, it's common knowledge that the early A8 trannies had issues. Whether is the tranny, TC, computer, fluids... There are known problems.

Anyone who dares to consider purchasing a 2015 A8 is warned that they are pretty much ticking time bombs. According to True Delta, 24% of 2015's have some type of transmission issue. That's no small number...

With that being said, what is the WORST CASE SCENARIO if you purchase a 2015 A8 C7? This is how I see it:

#1. You may need a new transmission
#2. You may need a new torque converter
#3 You may need a triple flush
#4 You may need a reflash

So, with a factory 5 yr/60k power train warranty still in tact, in addition to an extended bumper to bumper warranty, which would cover any one of those repairs, why are so many people shunning the 2015?

Again, I ask... What is the worst that can happen? Am I missing something?

Any help is appreciated.

Kevin A Jones

I'm curious as to where you received the 'True Delta' that 24% of 2015s have some type of transmission issue? That seems ridiculously high to me as all info I've seen/heard puts total A8 transmission issues for 2015's >2017's at 3%-5%.

Sconn

I logged into my account and searched 2015 corvette

kennyjames21

That just means 24% of all problems are tranny related, NOT that 24% of all vehicles had transmission issues...

mschuyler

Well, it is a small number because it's based on a whopping 26 cars total for 2015. The data, of course, is only for those people who joined True Delta and posted their issues. Statistically speaking, using True Delta as a source for the percentage of repairs is not valid because the sample is way too small. Overall transmission problems for all years (585 repairs noted) were 12% transmission problems with problems with the engine, electrical, and body far outstripping the transmissions. Further, all transmission problems reported were NOT torque converter issues.

Sconn

Ok, I see what you're saying...

Factoid

Sconn

Ok, I just threw the True Delta in as extra data... If I go by what the forum has to say, it's even worse.

So disregard the True Delta info and give me your thoughts then...
​​

Sconn

Seriously? I've literally seen people say "run, don't walk". Not necessarily for the 2015, but the A8 transmission in general. There's a very recent thread from a guy asking about a 2015 C7 1lt. Read the first few comments... There are many more to go with this.

mschuyler

Sure you have. You just got here and we've been having this discussion since, umm, 2015. The torque converter issue is obviously and really an issue. Nobody denies that and you don't need to argue the point. We've been dealing with it for five years now. The problem is the data and its method of collection. It's easy to look up threads on torque converter issues and see those who have had problems, including the "run, don't walk" people. But the data is skewed. First of all, people with no issues don't report any. All you are seeing is people who are reporting them. In other words, we have anecdotal reports. You are the one that brought up True Delta. Now that it has been pointed out that True Delta figures are a) limited to a few cars, and b) show that overall transmission problems are far over-shadowed by other issues, you say you just threw that in and no longer want to use them. Hmmm. So what do you expect to happen here?

Well, you're not exactly the first person to bring this up. I would venture to say that most people on this forum are aware of the issue. Overall Corvette buyers continue to buy automatics with the A8 by, what? 80% or so? Exact percentage doesn't matter; it's overwhelming. With all that information, people are buying what they want. That leaves you. If you are worried that a 2015 A8 will cause issues for you, don't buy one. If you believe the A8 in general over all years is too risky, don't buy one. We're not here to persuade you on way or another. Buy what you want.

Kevin A Jones

You do understand that the few you hear complaining and creating negative treads/posts on forums regarding the A8 are mostly the relatively few who have had issues not the 100,000 who have not had issues with their A8s.
Not trying to minimize the issue for those who have problematic A8s however issues are far less wide-spread than some including yourself would have folks believe.

4thC4at60

I've got around half a dozen friends that have C7s with A8 transmissions. Each car has more than 60,000 miles on the odometer - transmissions all trouble free. One friend took his car to Europe for a year and drove all over the continent..... zero problems.

kennyjames21

Its definitely an issue you should be concerned about, it's not imaginary. I think I read the issue is hitting around 5% of the cars, which is high, especially when most of these cars are relatively low mileage vehicles.

I don't think the issue is just a faulty transmission, I think the issue is due to active fuel management, which is an absolute disaster. Going to 4cyl mode creates crazy drivetrain vibrations (which is why they had to create an extra strong torque tube in the C7) and this is what is breaking most of the C7s transmissions, diffs and torque converters in the cars that are having issues.

kaplana08

[QUOTE=Sconn;1597569534]I don't want to beat a dead horse here. I think at this point, it's common knowledge that the early A8 trannies had issues. Whether is the tranny, TC, computer, fluids... There are known problems.

Anyone who dares to consider purchasing a 2015 A8 is warned that they are pretty much ticking time bombs. According to True Delta, 24% of 2015's have some type of transmission issue. That's no small number...

With that being said, what is the WORST CASE SCENARIO if you purchase a 2015 A8 C7? This is how I see it:

#1. You may need a new transmission
#2. You may need a new torque converter
#3 You may need a triple flush
#4 You may need a reflash

So, with a factory 5 yr/60k power train warranty still in tact, in addition to an extended bumper to bumper warranty, which would cover any one of those repairs, why are so many people shunning the 2015?

Again, I ask... What is the worst that can happen? Am I missing something?

Any help is appreciated.[/QUOT.

What makes you say Early A8 Someone with a 2019 just got the problem. GM seems to be ignoring it.

Avanti

...or, one could need ALL of the above. "What's the worst that could happen?" you ask. Duh, warranty expires and one needs ALL of the above.

SRQStingray

Buy a 2015 M7. Problems averted.

Sconn

Ya it's definitely tough being a prospective Vette owner, but reading all of the things that have/could go wrong really gives a person pause.... I mean, I go to forums to make educated decisions based on owner's experiences. To me, that's the best place to go. It's pretty easy to sift through the BS, but when an issue (or several) continually comes up, that's usually an indication of a problem.

mschuyler

A good example of the problem. You say it's not imaginary and then say you "think you read" it's 5%. Well, did you read it or did you not? And if you did, what was the source? That 5% sounds imaginary to me.

How do you know? That's just guesswork on your part. Actually I don't disagree, but we have no factual evidence to back that up. And saying it is an "absolute disaster" why, exactly? It seems to work for those who care to use it. Seems to me OP has three choices:

1. Buy an A8 and shiver in fear--or don't worry about it.
2. Buy a manual.
3. Don't buy a Corvette.

kennyjames21

LOL, I don't need to prove anything to you, you're no judge. I'm just putting out my opinions and info I've read about. I believe that Tadge guy gave that (around 5%) number in one of his Q&As. This situation isn't imaginary, that's why you see so much talk about it, why Tadge has talked about it and why they have reworked driveline parts on these cars several times, why they needed a stronger torque tube in the C7 (Tadge definitely talked about that in a video) and why there are TSBs out about the issue. AFM has had a history of issues from this disaster to oil consumption issues, its no coincidence that a company made a device just so consumers could turn it off. Thats plenty of 'factual evidence' its not just some guess out of the blue.

And theres more than 3 options, another option is to buy a corvette knowing there are potential issues and then take steps to cover yourself (extended warranties) or just keep it during the factory warranty period and see if any of these issues exist in the vehicle you end up with. No need to shiver in fear or feel like the manual is your only option.

robertlevine

I bought a 2019 A8. Immediately installed the Range. Never went into 4-cylinder mode. Hopefully will never have a problem. Still, I bought an extended warranty too. Better to be safe than sorry,