[arpad_m]

Originally Posted by Bumbleboy92

I’m conflicted.

I had the transmission flushed due to shudder on 11/04/2019 at 73,378 miles.

Its now 01/10/2021 at 96,742 miles and the shudder is back.

I first thought it was something else but it’s been a few days now and it’s back full force, almost everytime it goes into V4 mode I get that shaking and the car vibrates. I’m gonna try to go back to the dealership that did my transmission flush but I don’t think they’ll do another without payment. I paid $200 since my warranty was out, I’ve asked my tuner to disable AFM but the shudder coming back is just sad to me. I’d rather not have to expense $200-300 (depending on if they’re doing their ‘promotion’) every ~20k miles as I drive a lot imo.

I did show them the TSB 18-NA-355 when I had it flushed back then, I even bought the fluid and filter myself first but thought to let the dealership handle it so it’ll be done properly.

Sorry to hear. Unfortunately, it seems the best fix is a new torque converter + new fluid combo, you only got the fluid and were hoping that the converter was still good enough not to develop the shudder.

The complete truth is probably as elusive as hairs trimmed off a unicorn's tail, I conjecture that every A8 will develop the shudder over time, but depending on the characteristics of the new fluid and the state of the converter when it's flushed, this may either be pushed out far enough to be beyond relevance (say, 250-300K miles), or the shudder may return much sooner. Happy to be corrected by someone who actually knows the intricacies of the A8.