Jun 17, 2015, 03:24 PM
Last edit by: IB Advertising
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- Mercedes-Benz E-Class AMG: How to Reset Your ECU
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Holy Crap you guys.....sneaky ECU reset WORKS!!!
Newbie
Joined: Mar 2014
Posts: 6
Likes: 0
From: Caledon, ON Can.
2004 MB E55 AMG
I get that it is clearing the history on the adaptive transmission and so it goes back to learning your driving style. My Lexus has this too, but much different process to reset.
My problem is that I have had the car for three weeks and the thing is a monster. I am not sure I will notice even more power. It is good to know for after a long road trip.
Thanks again for the help and to all those that contribute to this forum. It is a very valuable resource.
Senior Member
Joined: Feb 2014
Posts: 420
Likes: 3
From: SC/NoVa
13' E350 4matic, 08' E63
I know it has been a long time since this topic was discussed and I feel silly asking this but I didn't see it in any of the thread posts.
Once I do the four steps and let it sit for 2 minutes, what do I do then? Start it up? Take the key out and then put it back in and start it?
Once I do the four steps and let it sit for 2 minutes, what do I do then? Start it up? Take the key out and then put it back in and start it?
MBWorld Fanatic!
Joined: Jun 2009
Posts: 4,429
Likes: 61
From: Cypress, TX
'06 E55, '15 Jeep SRT8, '94 Mustang GT
Wrong. Nothing is testing itself or the like you just said.
You will hear this every time you take your key out of the ignition and wait for 30 seconds. The systems shutting down and the actuator motors are closing the vent flaps. This has NOTHING to do with the TCU reset.
Proof? Sit inside your car, turn the radio off, take the keys out and sit and wait. You don't even have to lock yourself in. Just sit and wait and you will hear it after 30 seconds to max 2 minutes (I never had to wait that long). The CAN Bus shuts down even sooner (as soon as your cluster display turns off, the CAN Bus is asleep).
You will hear this every time you take your key out of the ignition and wait for 30 seconds. The systems shutting down and the actuator motors are closing the vent flaps. This has NOTHING to do with the TCU reset.
Proof? Sit inside your car, turn the radio off, take the keys out and sit and wait. You don't even have to lock yourself in. Just sit and wait and you will hear it after 30 seconds to max 2 minutes (I never had to wait that long). The CAN Bus shuts down even sooner (as soon as your cluster display turns off, the CAN Bus is asleep).
And are you saying that this reset does absolutely nothing? This thread should really be entitled adaptives reset.
Banned
Joined: Feb 2008
Posts: 0
Likes: 118
That's the point. You won't gain a single HP more. It resets the adaptive values from the driving style you have. Supposedly it takes 40 gear shifts then it locks in your driving style. So if you drive like granny on the back road the shifter points will be very early and you won't have all the upper rpm compared to a Michael Schumacher F1 race driving style.
Banned
Joined: Feb 2008
Posts: 0
Likes: 118
Did you see me saying it doesn't do anything? I explained that the actuator motors that you hear have nothing to do with the reset of the adaptive values. Read again what I wrote and I'm sure you'll understand.
MBWorld Fanatic!
Joined: Jun 2009
Posts: 4,429
Likes: 61
From: Cypress, TX
'06 E55, '15 Jeep SRT8, '94 Mustang GT
Senior Member
Joined: Feb 2014
Posts: 420
Likes: 3
From: SC/NoVa
13' E350 4matic, 08' E63
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MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
I've tried this with keyless-go:
I usually hear a dull "ping" when the ECU finally resets
- with your foot off brake
- push keyless button 2x (once is for aux, 2nd is for full ON)
- Press the gas pedal to the floor and hold
- push the keyless go again (turns off), hold the gas pedal for five seconds
- Release the gas pedal and wait at least two minutes for ECU to reset (don't open doors or mess with any radio settings, etc)
I usually hear a dull "ping" when the ECU finally resets
Last edited by Toadster; Apr 6, 2014 at 05:38 PM.
MBWorld Fanatic!
Joined: Feb 2009
Posts: 5,537
Likes: 8
2006 C350 Sport 6MT
Glyn is correct. This does not reset adaptations on the ECU nor the TCU. I have reset my ECU adaptations and you don't get the throttle responsiveness that you do with OP's method. I have also done the TCU adaptation and the shifts are violent. None of the adaptations that you clear via STAR compare to this. This method really does make the throttle much more responsive.
Nutshell:
OP's method makes throttle responsive
ECU adaptation reset via STAR nothing extremely noticeable
TCU adaptation reset via STAR makes the downshifts and up-shifts pretty violent. You will feel jerks each time gears are changed. They shift pretty fast too.
Don't bother with the STAR reset. Stick to this.
Just my 0.02
Thanks,
Nutshell:
OP's method makes throttle responsive
ECU adaptation reset via STAR nothing extremely noticeable
TCU adaptation reset via STAR makes the downshifts and up-shifts pretty violent. You will feel jerks each time gears are changed. They shift pretty fast too.
Don't bother with the STAR reset. Stick to this.
Just my 0.02
Thanks,
Banned
Joined: Feb 2008
Posts: 0
Likes: 118
Glyn is correct. This does not reset adaptations on the ECU nor the TCU. I have reset my ECU adaptations and you don't get the throttle responsiveness that you do with OP's method. I have also done the TCU adaptation and the shifts are violent. None of the adaptations that you clear via STAR compare to this. This method really does make the throttle much more responsive.
Nutshell:
OP's method makes throttle responsive
ECU adaptation reset via STAR nothing extremely noticeable
TCU adaptation reset via STAR makes the downshifts and up-shifts pretty violent. You will feel jerks each time gears are changed. They shift pretty fast too.
Don't bother with the STAR reset. Stick to this.
Just my 0.02
Thanks,
Nutshell:
OP's method makes throttle responsive
ECU adaptation reset via STAR nothing extremely noticeable
TCU adaptation reset via STAR makes the downshifts and up-shifts pretty violent. You will feel jerks each time gears are changed. They shift pretty fast too.
Don't bother with the STAR reset. Stick to this.
Just my 0.02
Thanks,
MBWorld Fanatic!
Joined: Feb 2009
Posts: 5,537
Likes: 8
2006 C350 Sport 6MT
After TCU starts to adapt and slow shifting I consider that shifting issues 
just kidding. I remember you from JC. Good to see you here.
Banned
Joined: Feb 2008
Posts: 0
Likes: 118
When you want that your TCU shifts more aggressive and rather sooner than later then the TCU key reset (explained here in this thread) is what you want.
MBWorld Fanatic!
Joined: Jan 2005
Posts: 4,276
Likes: 28
From: Bay Area
2015 E63S, 2018 E63S
It's actually closer to 3 min. You will hear all the normal stuff happen at 2:00 in every E class but what you want is the CLICK at about 2:45 or so then you can start it up. Take the car out for a cruise so it's warm then pull over and reset then let her rip.
Banned
Joined: Feb 2008
Posts: 0
Likes: 118
MBWorld Fanatic!
Joined: Feb 2009
Posts: 5,537
Likes: 8
2006 C350 Sport 6MT
Newbie
Joined: Apr 2014
Posts: 4
Likes: 0
From: WA State
2004 CL600, 2008 W211, 2008 Armada, 2006 SLK350 w/ AMG pkg, 1949 willys
Thanks a bunch for this info ! Before, I drove it to see how it felt before I did the reset and , WOW the difference ! Makes getting to work alot more fun ! I have to switch the trans to "comfort mode before my son uses it though. He uses the car to practice before he takes his driving test next month, don't want it to mess with him. Tried it on my wifes Nissan Armada and it made a big difference. Made sure I felt how it was before then did the reset- there is a big difference, the the big *** thing feels alot lighter and quicker !
Out Of Control!!
Joined: Dec 2004
Posts: 14,212
Likes: 9
From: Boston, MA
00 MB ML55, 91 Toyota Supra Turbo(sold), 06 E500(gone), 03 BMW M3
I've tried this with keyless-go:
I usually hear a dull "ping" when the ECU finally resets
- with your foot off brake
- push keyless button 2x (once is for aux, 2nd is for full ON)
- Press the gas pedal to the floor and hold
- push the keyless go again (turns off), hold the gas pedal for five seconds
- Release the gas pedal and wait at least two minutes for ECU to reset (don't open doors or mess with any radio settings, etc)
I usually hear a dull "ping" when the ECU finally resets
