Makin sure the C55/32 Brothas are hooked up on the ECU Reset...IT SMOKES!!!!
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MBWorld Fanatic!
Joined: Jan 2004
Posts: 7,092
Likes: 13
From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Makin sure the C55/32 Brothas are hooked up on the ECU Reset...IT SMOKES!!!!
Spread the word
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.
https://mbworld.org/forums/showthread.php?t=148019
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.
https://mbworld.org/forums/showthread.php?t=148019
MBWorld Fanatic!
Joined: Dec 2005
Posts: 2,347
Likes: 1
From: So Cal
2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
Now I know why everytime I re-dyno my car it loses WHP.
I commute to work 70 miles round trip in heavy traffic and this ECU reset before each dyno might give a better measure of my car's true power.
I commute to work 70 miles round trip in heavy traffic and this ECU reset before each dyno might give a better measure of my car's true power.
Almost a Member!
Joined: May 2006
Posts: 64
Likes: 1
From: Chicago
'03 C32
Brilliant!! 
I have had to drive slow and steady the last 2 days because of rain. I thought I was going to have to bring it in to the dealership because there was no kickdown or throttle response unless I floored it. Did this 2 minute fix and I'm back. The ESP kicked on at 50MPH as it shifted (wet road). Now if only we knew the code for the ejector seat and the revolving license plates.
I have had to drive slow and steady the last 2 days because of rain. I thought I was going to have to bring it in to the dealership because there was no kickdown or throttle response unless I floored it. Did this 2 minute fix and I'm back. The ESP kicked on at 50MPH as it shifted (wet road). Now if only we knew the code for the ejector seat and the revolving license plates.
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MBWorld Fanatic!
Joined: Jul 2004
Posts: 2,469
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From: Hong Kong
C55AMG W203; 330i E90
Look, this is the first time I ever heard something like this. I am certainly going to try it. 28000 km, I have been feeling the car is less and less responsive in the throttle, hopeless kick-down and even the usual top range speed like 170km/h which I now find difficult to get to within a short moment like in the old days when the car was new. I will memorize this procedure by heart. Can't wait to try it. Thanks.
But why a ECU reset will improve the car performance?
But why a ECU reset will improve the car performance?
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MBWorld Fanatic!
Joined: Jul 2004
Posts: 2,469
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From: Hong Kong
C55AMG W203; 330i E90
Right after above post, I tried the procedure, and YES , my car accelerate as like it is back to as it was new again! Sht, without applying much force and attention on the gas pedal, driven it normally, it was always 135 km/h at 5th gear instead of 100km/h !
BTW, for C55, is this effect appling to all M/S/C modes? Or just S/C?
BTW, for C55, is this effect appling to all M/S/C modes? Or just S/C?
Out Of Control!!
Joined: Oct 2005
Posts: 25,523
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From: Scripps Ranch, San Diego, CA
'05 C55 AMG '15 Jeep SRT '11 G37S
Seems a little odd, and I def have my doubts......but I'll give it a shot later on.
If this works, it should be made a Sticky so we don't forget or lose this info!
If this works, it should be made a Sticky so we don't forget or lose this info!
Super Member
Joined: Oct 2005
Posts: 825
Likes: 3
2002 c32
Originally Posted by Derrick9191
So how often can you do this or should you do this?
1. Can we keep it from reverting back?
2. I've heard that various ECU kits (like the Kleemann ECU and pulley kit that I'm going to get installed in July) give more power, and yadda yadda, but also more linear throttle response. Will the Kleemann ECU revert back like this or stay linear? Will doing this procedure on the Kleemann ECU do anything good or bad or nothing?
Bif
Member
Joined: Dec 2005
Posts: 103
Likes: 0
From: Sarasota, Florida
2003 c32 AMG
This absolutely works! Mine was lagging on initial throttle and idling roughly upon start-up. I just did this reset and it is like it was when new. I have to be careful with the throttle again. There is zero lag. I did not even realize how sluggish the throttle had become. Thanks, Jakpro1!
MBWorld Fanatic!
Joined: Feb 2004
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1989 Toyota Tercel EZ - dyno'd @ 70whp/77wtq
It seems to work for a car w/ ECU... tried it on my E55, C55 and even my Maxima.... my foot is quite heavy already... so no big difference in acceleration (my certified butt dyno says faster but don't feel it like night and day)... but the shift points are VERY different.
Yes, we should make it sticky....
Yes, we should make it sticky....
MBWorld Fanatic!
Joined: Feb 2004
Posts: 2,450
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1989 Toyota Tercel EZ - dyno'd @ 70whp/77wtq
Originally Posted by RizAMG
Just wanted to check, it doesn't reset anything else on the car, does it? Just the throttle response correct? Thanks guys
I did try this yesterday, as well as to my E55 and Maxima.... and boy, I fall in love with all of my cars again
MBWorld Fanatic!
Joined: Jul 2004
Posts: 2,469
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From: Hong Kong
C55AMG W203; 330i E90
Originally Posted by RizAMG
Just wanted to check, it doesn't reset anything else on the car, does it? Just the throttle response correct? Thanks guys
Yesterday, I did this 'reset procedure' the first time. I tested the car for about 20 mins though did not get the chance to do more than 130km/h. I did not find any other odd things or anything funny e.g. the headlamps auto on, auto folding mirror were all still working as usual.
I am gonna test the car again today!
Do you think my 97' SL320 has it?
Senior Member
Joined: Aug 2004
Posts: 356
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2012 GL550
Originally Posted by Jakpro1
Spread the word
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.
https://mbworld.org/forums/showthread.php?t=148019
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.
https://mbworld.org/forums/showthread.php?t=148019
Is the pedal supposed to be pushed all the way to the floor...past the kickdown switch/button?
Thanks.
