Gearbox malfunction no reverse gear

[trav-0]

2 hours into a 4 hour drive I pull off the highway to for a station. As the car gears down I get the message... Says I can continue driving lol I can't doesn't go into gear (even manually) and no reverse. Had to push it the rest of the way to the gas station. Ran the codes as I'm waiting on the wrecker. How eff'ed am I?

[IssaWrapVinyl]

2 hours into a 4 hour drive I pull off the highway to for a station. As the car gears down I get the message... Says I can continue driving lol I can't doesn't go into gear (even manually) and no reverse. Had to push it the rest of the way to the gas station. Ran the codes as I'm waiting on the wrecker. How eff'ed am I? 2012 A7

Screenshot_20201011-135621.jpg

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New clutch pack.


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[trav-0]

New clutch pack.


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I've never even heard of this being an issue... Can't even find anything on the Googles either... Just my luck tho

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[trav-0]

Guess I wasn't searching the right thing... Found some info what I'm looking at doesn't look promising lol

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[3g_bishi]

usually clutch won’t just go out like that. It will slip a little. You may have entered limo mode. If you reset the codes will it allow it to move?


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[trav-0]

usually clutch won’t just go out like that. It will slip a little. You may have entered limo mode. If you reset the codes will it allow it to move?


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only sign i can point to was a bit of a rough shift from 1st to 2nd ....I reset the codes twice with my odbeleven while i waited on the wrecker and no luck.

[IssaWrapVinyl]

only sign i can point to was a bit of a rough shift from 1st to 2nd ....I reset the codes twice with my odbeleven while i waited on the wrecker and no luck.

I've never even heard of this being an issue... Can't even find anything on the Googles either... Just my luck tho

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Unfortunately it is. My S6 is on its way to a new clutch. I thought it was the mech unit. Do you have. Rough accel into first gear from a stop? Was it rough going into reverse? Based on your faults. Displaying friction material, & no reverse gear. That’s a clutch pack fault. These are manual transmissions that shift automatically. In which certain gears are shifted thru the 2 different clutches that combine in the pack. So if you’ve got a friction material fault and no reverse gear. You’d possibly have damage in one of the clutches. Believe it or not. The dual clutch isn’t stout that’s why Audi is going to ZF8’s in the whole Audi line up. The only DSG cars are the 2 liters.


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[trav-0]

Unfortunately it is. My S6 is on its way to a new clutch. I thought it was the mech unit. Do you have. Rough accel into first gear from a stop? Was it rough going into reverse? Based on your faults. Displaying friction material, & no reverse gear. That’s a clutch pack fault. These are manual transmissions that shift automatically. In which certain gears are shifted thru the 2 different clutches that combine in the pack. So if you’ve got a friction material fault and no reverse gear. You’d possibly have damage in one of the clutches. Believe it or not. The dual clutch isn’t stout that’s why Audi is going to ZF8’s in the whole Audi line up. The only DSG cars are the 2 liters.


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Its a ZF8 tho...

[IssaWrapVinyl]

Its a ZF8 tho

Hmmm... well my buddy has a stage 2 RS7 and doing donuts last winter require him to get a new torque converter due to similar faults and issue you have... but his was purely the drifting and sliding non stop in MN snow that caused the tranny to take a poop. He has a ZF8 in the RS7


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[trav-0]

Hmmm... well my buddy has a stage 2 RS7 and doing donuts last winter require him to get a new torque converter due to similar faults and issue you have... but his was purely the drifting and sliding non stop in MN snow that caused the tranny to take a poop. He has a ZF8 in the RS7


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Lol at least he had fun breaking his... I baby the hell off this thing

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[IssaWrapVinyl]

Lol at least he had fun breaking his... I baby the hell off this thing

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Lol... I was doing donuts in my S6 then On my way home from the car meet I started to feel slippage going into 1st gear & coming to a stop


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[gk1]

The dual clutch isn’t stout that’s why Audi is going to ZF8’s in the whole Audi line up. The only DSG cars are the 2 liters.


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Incorrect.
The new C8 A6 55 and A7 are 3.0T V6's with S-Tronic(DSG).

[Alabama]

Incorrect.
The new C8 A6 55 and A7 are 3.0T V6's with S-Tronic(DSG).

I apologize for going sideways but help me learn. I thought DCT was overall a pretty solid transmission for an "automatic", especially the PDK version in Porsche. I thought the main reason manufacturers haven't gone entirely to DCT is that torque converter transmissions have improved and are less expensive. Is this essentially correct? Oh, how I miss a clutch pedal!

[gk1]

I apologize for going sideways but help me learn. I thought DCT was overall a pretty solid transmission for an "automatic", especially the PDK version in Porsche. I thought the main reason manufacturers haven't gone entirely to DCT is that torque converter transmissions have improved and are less expensive. Is this essentially correct? Oh, how I miss a clutch pedal!

Yep you got it.
There is some truth in how much torque certain DCT's can handle, but as you pointed out Porsche has PDK's that can handle the 600+lb-ft in the Panamera Turbo S.

[bahula03]

IIRC, North American C7 A6/7s got the ZF8 because of a market preference for the smoothness of the torque converter and virtually no one caring about the fuel efficiency benefits of the DCT, preferences that are opposite most other places. The C8 A6/7 now have the DCT's to accommodate Quattro with Ultra®. I understand the C7 S6/7 getting the DCT for performance reasons, but the C8 getting the ZF8 is a bit of mystery, maybe just parts commonality and using what was already on the shelf from the RS4/5?