Jun 17, 2015, 03:24 PM
Last edit by: IB Advertising
See related guides and technical advice from our community experts:
- Mercedes-Benz E-Class AMG: How to Reset Your ECU
Step by step instructions for do-it-yourself repairs
Gonna try resetting ECU/Tranny....let's see what happens.
MBWorld Fanatic!
Joined: Dec 2005
Posts: 1,653
Likes: 5
From: Ann Arbor
'03 SL55
Figured what the hell, and gave it a shot per the instructions someone posted. I get her out and punch it from a start and it feels weird....a bit unstable. I am like great, I broke something, then I realize it is pulling like a friggin freight train and my a$$ is wiggling. I can't wait til the ECU sets me up this way....maybe better, that would smoke.
Anyway proceeded to do some launches and I can really tell a difference in shifts. Someone said it best....feels like the car had a tune up or something.
I COMMAND all of you to try this (well if you are not happy with your current setup). I just know now my car set me up wimpy due to long highway miles after driving back from Klee. Enjoy!!!
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 ECU to reset.
Anyway proceeded to do some launches and I can really tell a difference in shifts. Someone said it best....feels like the car had a tune up or something.
I COMMAND all of you to try this (well if you are not happy with your current setup). I just know now my car set me up wimpy due to long highway miles after driving back from Klee. Enjoy!!!
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 ECU to reset.
Former Vendor of MBWorld
Joined: Oct 2008
Posts: 1,181
Likes: 4
From: Long Island, NY
Whatever we're tuning!
It unquestionably makes a tremendous difference!
Junior Member
Joined: Apr 2009
Posts: 34
Likes: 0
From: east coast
04' CLK55 / 09' S550
will this work on my CLK55
Hey guys, I have noticed that my 04 CLK55 is lagging from stop position, almost like my great-grand-ma-ma had been driving it for a while. Will this ECU reset thing work for my car too???? 
Thread Starter
MBWorld Fanatic!
Joined: Jan 2004
Posts: 7,092
Likes: 13
From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Hey guys, I have noticed that my 04 CLK55 is lagging from stop position, almost like my great-grand-ma-ma had been driving it for a while. Will this ECU reset thing work for my car too????
MBWorld Fanatic!
Joined: Nov 2006
Posts: 9,137
Likes: 4
From: California, USA
E63 P30, CL500 Sport
Many people seem to be divided on this..... some say it is possible and very easy to re-set adaptations for the 7-speed through STAR while others say it is not so easy
Former Vendor of MBWorld
Joined: Oct 2008
Posts: 1,181
Likes: 4
From: Long Island, NY
Whatever we're tuning!
I will hook up the SDS machine to an 07+ 63 AMG car and see what options I get in the EGS module as far as adaptations go. I will post the results afterwards. Once the adaptations are reset, elegance will be redefined, power will be unleashed and your E63 legend will be born.
MBWorld Fanatic!
Joined: Nov 2006
Posts: 9,137
Likes: 4
From: California, USA
E63 P30, CL500 Sport
I will hook up the SDS machine to an 07+ 63 AMG car and see what options I get in the EGS module as far as adaptations go. I will post the results afterwards. Once the adaptations are reset, elegance will be redefined, power will be unleashed and your E63 legend will be born.
thanks, I'd really appreciate that I'd be willing to buy a STAR system just for the purpose of re-setting adaptations. I hate it when the car is slugish
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
Former Vendor of MBWorld
Joined: Oct 2008
Posts: 1,181
Likes: 4
From: Long Island, NY
Whatever we're tuning!
SDS 63 EGS Adaptations
Alright, I got the information for you.
Looks as if the ETC adaptations can be reset for both upshifts and downshifts...
Take a look:
The reset:
Completed:
Looks as if the ETC adaptations can be reset for both upshifts and downshifts...
Take a look:
The reset:
Completed:
MBWorld Fanatic!
Joined: Nov 2006
Posts: 9,137
Likes: 4
From: California, USA
E63 P30, CL500 Sport
Member
Joined: Sep 2010
Posts: 238
Likes: 12
From: NorCal: San Jose - Stockton - Sacramento
97 SL600, 03 CLK55, 03 S55, 04 SL55, 05 C55, 07 R500
is star a computer program? i keep seeing it on the forums, but never really looked into. seems like something i gotta buy?
MBWorld Fanatic!
Joined: Oct 2009
Posts: 2,825
Likes: 17
From: Southern California
E55 w/ goods, Z32 Project underway
Photo of my setup, interface in under laptop (still stays cool) with cables tucked nicely away. Generally they run on old IBM T30s (I found a like new fully loaded for cheap) or an external drive for other computers.
https://mbworld.org/forums/4860859-post410.html
https://mbworld.org/forums/w211-amg/...you-using.html
https://mbworld.org/forums/w211-amg/...o-pics-17.html
Member Shardul here has them for a good price plus he is located locally (US) vs China. If you get the right setup you can access MB WIS and EPC-Net (available for free anyhow).
Last edited by pearlpower; Oct 11, 2011 at 04:26 PM.
Member
Joined: Sep 2010
Posts: 238
Likes: 12
From: NorCal: San Jose - Stockton - Sacramento
97 SL600, 03 CLK55, 03 S55, 04 SL55, 05 C55, 07 R500
MBWorld Fanatic!
Joined: Oct 2009
Posts: 2,825
Likes: 17
From: Southern California
E55 w/ goods, Z32 Project underway
Senior Member
Joined: Sep 2005
Posts: 411
Likes: 0
2003 E55 K1
Another approach?
Years ago I had a problem with sluggish performance and MB told me to hold in gear longer before shifing manually at higher RPM's and transmission will adapt to new shift points. Much safer than going around WOT. Not sure it made much difference since the problem was with the supercharger not engaging, but after a few days of shifting manually at higher RPM's the supercharger did start to engage again. Then we decided to replace with a new ECU, so who knows.
Perhaps a dumb question, is there any concern sneaky ECU reset can affect an aftermarket tune?
Perhaps a dumb question, is there any concern sneaky ECU reset can affect an aftermarket tune?
Junior Member
Joined: Apr 2015
Posts: 32
Likes: 2
From: Southern CA
2014 GL450
Supposedly, the following procedure works with any "drive by wire" vehicle _without_ having to disconnect the battery:
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 ECU to reset.
I've tried it once and it seemed to work, but there seems to be no substitute for slammin' the throttle and letting the system learn by itself. Welcome others experience.
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 ECU to reset.
I've tried it once and it seemed to work, but there seems to be no substitute for slammin' the throttle and letting the system learn by itself.
Welcome others experience.
Junior Member
Joined: Feb 2019
Posts: 25
Likes: 0
2004 W211 E55 AMG MERCEDES
Hey there friend I've got the Star diagnostic system myself
I've been having some trouble with my system not wanting to connect to the SD box so I was going to see if you might want to or be able to help me fix my situation if you can't Maybe you may know somebody who can I would really love to have my star system back up and working again thanks for any info whether you can help me or not sorry about the punctuation
QUOTE=Jakpro1;3498710]LOL, ya know, I was one of the first to post on this years ago and we've gone round and round so much that I honestly forgot which position it is supposed to be in.
I don't mess with it much anymore as I have a Star and just wipe tranny adapts with Star.
I know FOR SURE it has nothing to do with "not touching" that kickdown switch at the bottom of the pedal so don't worry bout that. Hold her allll the way down.
Biggest thing (IMO) is not to open the door or disturb the car after the reset. Just sit there for 3 mins. If you have a watch, you can time it and you'll here a "click" under the dash. Not sure what exactly happens but she's a whole new beast after that click.
Who would have thought that resetting those tranny adapts would make such a huge impact.[/QUOTE]
QUOTE=Jakpro1;3498710]LOL, ya know, I was one of the first to post on this years ago and we've gone round and round so much that I honestly forgot which position it is supposed to be in.
I don't mess with it much anymore as I have a Star and just wipe tranny adapts with Star.
I know FOR SURE it has nothing to do with "not touching" that kickdown switch at the bottom of the pedal so don't worry bout that. Hold her allll the way down.
Biggest thing (IMO) is not to open the door or disturb the car after the reset. Just sit there for 3 mins. If you have a watch, you can time it and you'll here a "click" under the dash. Not sure what exactly happens but she's a whole new beast after that click.
Who would have thought that resetting those tranny adapts would make such a huge impact.[/QUOTE]
