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Need Help On A6 Problems

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Old Jan 16, 2021 | 06:43 AM
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From: Lake Mary Florida
Default Need Help On A6 Problems

I continue to experience random issues with the A6 transmission in my C6 GS (see signature). I have sometimes experienced issues with the 2-3 shift hesitating. Also, I had issues where after the burnout the trans went into 'limp mode"- staying in a higher gear and not downshifting back to 1st. At the suggestion from various sources a shift into neutral after the burnout and back to drive before staging seemed to be a fix.

Last weekend, after the first burnout the car would not move in any shifter position- it seemed like the transmission was in both drive and reverse as if it had a transbrake (which it does not of course.) After rowing through all the shifter positions a number of times it returned to normal and I was able to stage and make the run. I made three later runs with no problem.


Does this appear to be issues with the Transmission Control Module (TCM)? I live in the Orlando FL. area and the transmission was built by a company in Texas. I would like to avoid having my local tuner shop pull the transmission and send it back to Texas to be checked out. Is it reasonable to ask that my local tuner to collaborate with the transmission builder to remotely check out the transmission tuning / Transmission Control Module?

I must admit I do not understand which A6 parameters are typically set by the transmission builder vs. the car tuner using the dyno and if the TCM settings can be accessed via the local tuner’s HP software on the dyno vs directly to the TCM.

Thanks in advance for assistance.

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