LTB : Questions for yah 4.0TT

[Daytonview]

Looking to buy 4.0TT. My mind was set on a S6 but may be looking at a RS7.

Questions for both platforms:

1. Both oil strainer are recalled correct? No matter tuned or not?

2. Both turbos are extended warranty 10yrs or 120k miles?
A) only if they are stock and not flagged TD1 correct?

3. Don't know much about the DSG for the S6. AUDI also gave that an extended warranty or up to $5k for repairs on the DSG correct?
A) RS7 is a ZF8 and not normally issues as much as the DSG in the S6?

Thanks!

[Audisthesia]

1: Yes, all of the c7 & c7.5 4.0T have the recall, with the exception of most, if not all, of the 2018 models.

2. Only stock motor and ecu is covered. You can guarantee the audi dealer will check to see if the car is tuned before performing this very expensive recall.

3. I don't recall ever seeing a DSG warranty extension for the c7/7.5.

3A: rs is zf, s is dsg, a is zf. That is correct. As far as issues, it will depend on who you ask.

[ForceFed4g63]

The ZF8 unequivocally has less issues than the DSG. I'm currently contemplating moving from my stage 3 S6 to an S8 solely because of the transmission.

[ANMS4]

^^^ This is why I only looked at S8's over S6/7.

[embassured]

Just to add-on...

ALL 2018s are in the clear regarding the recall; i.e. already have "G" screen revision. Some 2017's also have the "G" screen. There's a vin range on the TSB to verify.

As mentioned prior, I've never heard of any additional coverage for the the DSG. And yes, lot's of chatter that the ZF is more durable/trouble free.

Whatever you purchase and certainly a 2017 or older, ensure it hasn't been flagged so you have the extended warranty coverage.

Good luck!

[jrubio96]

Turbo recall is free, as any recall is. Depending on what dealer you go to, they might give you more trouble if you're tuned, but any recall is always free from any OEM regardless of warranty status

Sent from my SM-G991U1 using Tapatalk

[BasicBlack]

The oil strainer recall 21H7 is free, available regardless of tune status. The is no recall on the Turbo's. The extended turbo warranty only applies to vehicles not flagged as "TD1".

[Daytonview]

Just looking for answers to not buy the S8 or rs7... lol

Both of them like the S6/7 are both air ride, and both are zf8 tranny right?

[BasicBlack]

Don't know about the S8 variants. C7 & C7.5 RS7's were available with Air or Dynamic Ride Control (DRC) suspensions depending on the oprions. I believe the RS7 Performance variants were all DRC - not air suspension. But, since I own a RS7 Prestige with DRC, I'll defer to RS7 Performance owners to confirm. Enjoy.

[Nosferatu]

RS7 Performance owner there is no air suspension. It's DRC which is akin to magnetic ride. Different technology but similar result. I do not mind my rides "rough" but the RS7 Performance on Comfort is rougher riding than my Tesla. Dynamic which is the stiffest is retardedly stiff but it seriously mitigates body roll. The big difference to me on the RS7 Performance when I crossed shopped the Prestige is the braking. The carbon ceramic rotors are huge and really scrubs speed well. 420mm (roughly 16.5" diameter) are the size of a large pizza almost in diameter. The Prestige the brakes are like a sponge.

As for that recall as a 2018 RS7 Performance I was not offered the recall as the car has the most recent revision allegedly.

[jeff351]

RS7 Performance owner there is no air suspension. It's DRC which is akin to magnetic ride. Different technology but similar result. I do not mind my rides "rough" but the RS7 Performance on Comfort is rougher riding than my Tesla. Dynamic which is the stiffest is retardedly stiff but it seriously mitigates body roll. The big difference to me on the RS7 Performance when I crossed shopped the Prestige is the braking. The carbon ceramic rotors are huge and really scrubs speed well. 420mm (roughly 16.5" diameter) are the size of a large pizza almost in diameter. The Prestige the brakes are like a sponge.

As for that recall as a 2018 RS7 Performance I was not offered the recall as the car has the most recent revision allegedly.

DRC in comfort feels like a cadillac compared to dynamic mode though, the braking is superb though, the carbon ceramics will shut that big boat down, they are 10x better than even the massive 2-piece rotors i had on my a6

[BasicBlack]

RS7 Performance owner there is no air suspension. It's DRC which is akin to magnetic ride. Different technology but similar result. I do not mind my rides "rough" but the RS7 Performance on Comfort is rougher riding than my Tesla. Dynamic which is the stiffest is retardedly stiff but it seriously mitigates body roll. The big difference to me on the RS7 Performance when I crossed shopped the Prestige is the braking. The carbon ceramic rotors are huge and really scrubs speed well. 420mm (roughly 16.5" diameter) are the size of a large pizza almost in diameter. The Prestige the brakes are like a sponge.

As for that recall as a 2018 RS7 Performance I was not offered the recall as the car has the most recent revision allegedly.

100% Agree. RS7 Prestige steel brakes are somewhat spongy.

[Nosferatu]

DRC in comfort feels like a cadillac compared to dynamic mode though, the braking is superb though, the carbon ceramics will shut that big boat down, they are 10x better than even the massive 2-piece rotors i had on my a6

I agree there is a large delta swing from comfort to dynamic however the Tesla Plaid I own also has an air suspension and comfort and other cars I own/owned had softer on the soft end of the spectrum. Certainly not a deal breaker we road tripped the car no problems. Although my wife likes speed and not a fan of comfort. Those carbons definitely stop the car.

[Yeoman]

The ZF8 unequivocally has less issues than the DSG. I'm currently contemplating moving from my stage 3 S6 to an S8 solely because of the transmission.

How many "issues" does a ZF8 have when you increase torque by 60% over what it was intended to handle? I'd wager it just as unreliable while still providing inferior shifting performance to a DSG..

The ZF is a great transmission, but it still uses a torque convertor.

[MattyMarkey]

How many "issues" does a ZF8 have when you increase torque by 60% over what it was intended to handle? I'd wager it just as unreliable while still providing inferior shifting performance to a DSG..

The ZF is a great transmission, but it still uses a torque convertor.

TCU tune helps mitigate issues, for either transmission. Though the DSG is still more failure prone with the same increase in power. Axel's will fail first before the ZF8 will, but it is rated to 664ft/lbs. There are plenty of people with more than the rated spec.

[Devorak13]

"3. Don't know much about the DSG for the S6. AUDI also gave that an extended warranty or up to $5k for repairs on the DSG correct?"

https://considertheconsumer.com/clas...EDU54AXveJ25RA

Not positive if you can still file for this any longer

[ForceFed4g63]

How many "issues" does a ZF8 have when you increase torque by 60% over what it was intended to handle? I'd wager it just as unreliable while still providing inferior shifting performance to a DSG..

The ZF is a great transmission, but it still uses a torque convertor.

Mod for mod the ZF8 is far more reliable than the DSG. This isn't really something that can be debated.

[Daytonview]

Looks wise = rs7 is what the heart wants go to with... reality 70/30 S8.. test drove one last week, and it felt like a big fat agile cat... although stock says 11.9 quartermile and my current A6 stage 2 single pulley is 11.9... the S8 feels much stronger... prob going to get it tuned either way

Rs7 tune seems to be 10.5-10.8.

S8 because it's heavy is 0.3-0.4 slower

Insurance wise and Brake job wise.. haha it all points to S8

But the heart wants rs7... lol

[Tree57]

According to magazines, weight difference is approximately 150 lbs between S8 and the RS7, that probably accounts for a 1/10th or two. I believe the only other difference with regards to acceleration is S8 runs 275 35 21 OEM tires vs 275 30 21 on the RS7, effectively reducing the gear ratio by nearly 4%. I know stock vs stock RS7 runs a couple more psi boost, but a tune renders that moot. And yes, I’m also aware of billet turbo differences, amongst other considerations.

My point is, both are bad ass, but you can close that 3 to 4/10ths gap by going with a slightly smaller sidewall and removing the spare and tools.