Transmission service = less aggressive shifting?
Thread Starter
Member
Joined: Jun 2009
Posts: 114
Likes: 0
check sig ;)
Transmission service = less aggressive shifting?
Got my trans serviced on my 09 C63 Sedan at my friends garage. They ordered everything directly from MB. They used the Alldata procedures and did a TCU reset. Now while the shifting is way smoother it lost the crispness in the shifts I have grown to love. Will just driving it aggressively help the TCU relearn my driving style or is it supposed to be that smooth and I just didnt realize the fluid was shot.
MBWorld Fanatic!
Joined: Mar 2012
Posts: 4,026
Likes: 7
From: Walnut Creek, CA
Vivid Racing '09 C63 AMG
Yes. The tune is in the ECU. You can reset the TCU by following the instructions here, #10:
https://mbworld.org/forums/showthread.php?t=249371
https://mbworld.org/forums/showthread.php?t=249371
Last edited by CoolBDPhenom03; Mar 9, 2013 at 02:45 PM.
Trending Topics
MBWorld Fanatic!
Joined: Apr 2009
Posts: 2,515
Likes: 17
From: Toronto
2016 C63 S
Yah man...that's the idea...
The tranny is adaptive, so if it was driven conservatively in its early miles, the tranny adapted to that conservative style. If you reset it, it will re-learn based on how aggresively you drive it after the reset.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Jul 2009
Posts: 1,749
Likes: 1
From: PNW
'15 VW GTI
I suspect that just as it will adapt to a more aggressive driving style, it will adapt to a more easy driving style as well. So, you have to drive it consistently the way that you want it to perform.
MBWorld Fanatic!
Joined: Apr 2009
Posts: 2,515
Likes: 17
From: Toronto
2016 C63 S
I think the logic is that your first couple of hard, hammer down, pulls should be as aggressive as possible for the tranny to pick it up....if you let off during maximum pulls, then the tranny will adapt to that and not shift as hard or hold as long....
So re-set, and then find some open stretches and open the gates of hell.
So re-set, and then find some open stretches and open the gates of hell.
Super Member
Joined: Aug 2012
Posts: 748
Likes: 1
From: Dubai
C63 AMG
Yes. The tune is in the ECU. You can reset the TCU by following the instructions here, #10:
https://mbworld.org/forums/c-class-w204/249371-w204-secrets-thread.html
https://mbworld.org/forums/c-class-w204/249371-w204-secrets-thread.html
10) Steps to Reset the TCU. Resetting the TCU will reset transmission to factory shift points and the car will 'relearn' your driving style.
(1.) Turn the ignition key to the on (not start) position.
(2.) Press the gas pedal to the floor and hold for five seconds.
(3.) Turn the key to the "off" position (don't remove the key), then release the gas pedal.
(4.) Wait at least two minutes for TCU to reset.
Super Member
Joined: Aug 2012
Posts: 748
Likes: 1
From: Dubai
C63 AMG
MBWorld Fanatic!
Joined: Apr 2009
Posts: 2,515
Likes: 17
From: Toronto
2016 C63 S
I just did it overnight while the car was parked
MBWorld Fanatic!
Joined: Mar 2012
Posts: 4,026
Likes: 7
From: Walnut Creek, CA
Vivid Racing '09 C63 AMG
I've noticed that the gear changes adapt every so often, but I don't know what the time period is. I wish I could get a straight answer. If I track the car, I want to know how long it takes to "normalize."
MBWorld Fanatic!
Joined: Apr 2009
Posts: 2,515
Likes: 17
From: Toronto
2016 C63 S
