A6 transmission question
Thread Starter
Intermediate
Joined: Jun 2002
Posts: 38
Likes: 0
From: Tempe AZ
A6 transmission question
I have a 2006 A6 with about 22k miles. Periodically I am getting a very hard downshift from 2nd to 1st when I come to a stop. It downshifts into 1st but does it with a "thunk" sound. It doesn't do it very often, just once in awhile. I am thinking about changing the trans fluid/filter and see if that fixes it. I realize that it can't hurt to change them but is it worth it? I also wonder if resetting (relearn) the TCM would do any good? Any other thoughts?
Race Director
Joined: Sep 2009
Posts: 11,338
Likes: 2,438
From: Eastern
I have a 2006 A6 with about 22k miles. Periodically I am getting a very hard downshift from 2nd to 1st when I come to a stop. It downshifts into 1st but does it with a "thunk" sound. It doesn't do it very often, just once in awhile. I am thinking about changing the trans fluid/filter and see if that fixes it. I realize that it can't hurt to change them but is it worth it? I also wonder if resetting (relearn) the TCM would do any good? Any other thoughts?
I replaced the battery and it never happened again. A new battery change likely reset any gliches in the electronics.
You can try disconnecting the battery, which will reset any electronic gliches, and see if that helps. ( A shot in the dark)
Drifting
Joined: Jul 2009
Posts: 1,287
Likes: 18
From: https://www.facebook.com/groups/OrangeCorvettes/
I wouldn't think with 22k miles you would need a fluid change. What are your driving habits, are you always babying it? Reason I ask is that the computer will learn your driving habits and make line pressure adjustments. It did something like that to mine so I went and beat on it a little more...problem went away.
Thread Starter
Intermediate
Joined: Jun 2002
Posts: 38
Likes: 0
From: Tempe AZ
I don't drive it very aggressively. Mainly cruising around town. Does anyone know if disconnecting the battery will clear the TCM and force it to relearn my driving habits? I will get on it a little harder and see if that makes a difference.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
Disconnecting the battery will not clear the "adapts" you can only clear them with a GM TECH ll or similiar device , after the reset the trans will shift funny sometimes as it relearns but after about 20 miles of varied driving you will be fine .
Google A6 relearn or reset trans adapts for the driving segment you must do for the trans to relearn properly
Dave
Google A6 relearn or reset trans adapts for the driving segment you must do for the trans to relearn properly
Dave
Last edited by Dcasole; Nov 21, 2017 at 09:00 PM.
Melting Slicks
Joined: Jun 2006
Posts: 2,491
Likes: 261
From: Miami Florida
6l80 will do that no relearn or oil change will take it away I asked the tuner if he programed that and he said will do it itself no matter what.
I actually like it wish will do it on every gear slowing down it feels like the stick cars going into a lower gear to slow down.
A way I look at it is a byproduct of having a strong transmission.
I actually like it wish will do it on every gear slowing down it feels like the stick cars going into a lower gear to slow down.
A way I look at it is a byproduct of having a strong transmission.
Thread Starter
Intermediate
Joined: Jun 2002
Posts: 38
Likes: 0
From: Tempe AZ
xBoostx
I've driven the car for several years and it only started to do it earlier this year. Do you have any idea why it doesn't occur all of the time; only once in awhile? Are there certain conditions under which it occurs?
I've driven the car for several years and it only started to do it earlier this year. Do you have any idea why it doesn't occur all of the time; only once in awhile? Are there certain conditions under which it occurs?
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