BlueSander

I have noticed this problem for a couple times but yesterday was the worse. I had the car parking outside all night in cold weather. Everything started fine in the morning. However, as I was driving, I notice the car shake as the gear changes (mostly between 3-4 and 5-6) under light throttle. When I drive the car a bit harder (just a bit more than just normall local cruising), the vibration/stutters seems to be gone a bit. Have anyone else experience this? I can't pull any codes, no MIL however, my device won't able to access 4WD electronics nor Transmission control at all (granted that I don't have the offical VAG tool people talked about).
Thanks & Merry Christmas to all!!!

PS: I went through my panic attack and called Audi dealer to get the car in but my service man wasn't in today. I have to make a 150miles trip and was thinking about taking the other car but I'm now taking the A6 just to monitor the problem a bit more to see what happens. I truly hope this is just a software issue rather than some Torque converter or crappy tranny issue.

Pete@ECSTuning

Does it feel like the vibration is coming from anywhere in particular? The steering wheel, pedals, etc? How was the weather when it was sitting outside, is there any snow or ice buildup anywhere on the vehicle?

beep-beep

did vibration went away after transmission/engine warmed up?
did you look at you revs when gears were shifting (did revs went up between gears or throttle worked correctly)
I know that audi had this environment-first aproach when it made transmission shift differently in cold temperature to allow catalitic converter warm up faster. maybe it was it.

Leeladisky

I think there is a bulletin on this...

L

KevinGary

Here it is:

http://uberlame.com/a6_tsb/Transmiss...ween%203-4.pdf

BlueSander

Thanks guys. To answer some of the questions:
- It's not the steering wheel, gas petal, brake pedal that shakes. It's the whole car, and I feel it's causing by the powertrain.
- I drove to NJ yesterday and as I notice, it's not during gear shift. It usually take places when I gives the car more gas (hence going up hill is the easiest way to replicate the problems). It does happen on flat road too and I don't have any explaination for that. It also takes place when there isn't a gear change hence why I concluded prob not the tranny.

BlueSander

I found this post: https://www.audiworld.com/forums/sho....php?t=2754700

Same prob like mine except this thing take place while the car is up to operating temp + never seen it while the car is cold. Also, in my case, going up hill or flat surface, nothing really while going down hill. 3k is expected est. 900 for part.

Also, my car doesn't have any MIL on. Quite strange!

exbtc112

So what was the problem?