Jun 17, 2015, 03:24 PM
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Sneaky ECU reset from the E55 forum
Thread Starter
Senior Member
Joined: Jan 2006
Posts: 490
Likes: 3
From: Dallas, TX
sold - w211 e320, f250, rx7 race car
Sneaky ECU reset from the E55 forum
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.
I tried this on my E320 and it worked, it's like I got a tune up, much better response from the transmission now. Try it out and see what you think!
Almost a Member!
Joined: Apr 2006
Posts: 51
Likes: 0
From: Maryland
E500, SL500
will this reflash PowerChips ECU settings?????
Does anyone know if this will reflash PowerChips settings on the ECU
?
?
Originally Posted by mbuskuhl
For those who have not ventured into the E55 forum lately, check out this thread by Jakpro1 https://mbworld.org/forums/showthread.php?t=148019
I tried this on my E320 and it worked, it's like I got a tune up, much better response from the transmission now. Try it out and see what you think!
I tried this on my E320 and it worked, it's like I got a tune up, much better response from the transmission now. Try it out and see what you think!
MBWorld Fanatic!
Joined: Feb 2004
Posts: 5,143
Likes: 1
From: South Orange County, CA
4 wheels
Originally Posted by bsmoove
Does anyone know if this will reflash PowerChips settings on the ECU
?
?
Senior Member
Joined: Dec 2002
Posts: 452
Likes: 0
From: Germany
Hi,
Thank you for point this out!
We have had our E240 since 2003, its only been used for city and short distance driving (usually around 50km/h). Its has only run 1900km in 3 years. However, I always have the feeling that the transmission doesnt run smooth and the engine is very "tight".. The fuel consumption is much higher than the C240.. I think this reset will help but I have a few questions..
Can someone please tell me if I will get any confirmation messages on the display after you have released the gas pedal? Do I get any dialog on the display at all?
does this reset thing work on my W203 C240?
Thanks,
Mike
Thank you for point this out!
We have had our E240 since 2003, its only been used for city and short distance driving (usually around 50km/h). Its has only run 1900km in 3 years. However, I always have the feeling that the transmission doesnt run smooth and the engine is very "tight".. The fuel consumption is much higher than the C240.. I think this reset will help but I have a few questions..
Can someone please tell me if I will get any confirmation messages on the display after you have released the gas pedal? Do I get any dialog on the display at all?
does this reset thing work on my W203 C240?
Thanks,
Mike
Super Member
Joined: Nov 2003
Posts: 586
Likes: 2
From: Scotland, UK
2019 Mercedes Benz S500L AMG Premium Plus
Originally Posted by mike82y
Hi,
Thank you for point this out!
We have had our E240 since 2003, its only been used for city and short distance driving (usually around 50km/h). Its has only run 1900km in 3 years. However, I always have the feeling that the transmission doesnt run smooth and the engine is very "tight".. The fuel consumption is much higher than the C240.. I think this reset will help but I have a few questions..
Can someone please tell me if I will get any confirmation messages on the display after you have released the gas pedal? Do I get any dialog on the display at all?
does this reset thing work on my W203 C240?
Thanks,
Mike
Thank you for point this out!
We have had our E240 since 2003, its only been used for city and short distance driving (usually around 50km/h). Its has only run 1900km in 3 years. However, I always have the feeling that the transmission doesnt run smooth and the engine is very "tight".. The fuel consumption is much higher than the C240.. I think this reset will help but I have a few questions..
Can someone please tell me if I will get any confirmation messages on the display after you have released the gas pedal? Do I get any dialog on the display at all?
does this reset thing work on my W203 C240?
Thanks,
Mike
Hi there. You wont get a confirmation message but it will work with your W203.
GL
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Almost a Member!
Joined: Apr 2006
Posts: 51
Likes: 0
From: Maryland
E500, SL500
Thanks MB-Fan
I was worried about that.........
Originally Posted by MB Fanatic
No it will not mess with the powerchip mods. This just resets the throttle response and transmission times back to OEM specs. It will not touch the powerchip binary in any way.
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Almost a Member!
Joined: Apr 2006
Posts: 51
Likes: 0
From: Maryland
E500, SL500
Turn the ignition key to the on (not start) position?
Ok, when you say "not start position", you mean do not start the car up right? And there are 2 positions before you start the car up. Do you mean the 1st position, or the 2nd?
Thanks in advance.
Thanks in advance.
Originally Posted by mbuskuhl
For those who have not ventured into the E55 forum lately, check out this thread by Jakpro1 https://mbworld.org/forums/showthread.php?t=148019
I tried this on my E320 and it worked, it's like I got a tune up, much better response from the transmission now. Try it out and see what you think!
I tried this on my E320 and it worked, it's like I got a tune up, much better response from the transmission now. Try it out and see what you think!
Senior Member
Joined: Jan 2006
Posts: 382
Likes: 1
From: McAllen, Texas
2017 E400 CAB 2007 BMW 650i CONV
Originally Posted by mike82y
another question 
2. Press the gas pedal to the floor and hold for five seconds.
does it mean all the way down to the kickdown position?
thanks
Mike
2. Press the gas pedal to the floor and hold for five seconds.
does it mean all the way down to the kickdown position?
thanks
Mike
Member
Joined: Nov 2004
Posts: 171
Likes: 0
From: Los Angeles / Orange County
2005 E500 / 1993 MR2 Turbo
Tried this "reset" on friday and noticed a change in my acceleration. Looking at the tachometer while accelerating, it seems as if the transmission is shifting faster.
Super Member
Joined: May 2003
Posts: 820
Likes: 0
From: Chicago Western Burbs
'06 SL65
Didn't notice the car pulling any harder than before. Maybe my SOTP is broken. 
I did notice the lunging near a dead stop disappeared after the reset. We'll see how long this will last though.
I did notice the lunging near a dead stop disappeared after the reset. We'll see how long this will last though.
Super Member
Joined: May 2003
Posts: 820
Likes: 0
From: Chicago Western Burbs
'06 SL65
So it didn't seem to make a difference on my E500 yesterday so I tried it on the S500 today. WOW! I can tell a huge difference with the S500 as the car pushes much harder than before. I wonder if it's because I always drive my E500 hard and the ECU already mapped the tranny to shift hard?
MBWorld Fanatic!
Joined: Dec 2003
Posts: 1,586
Likes: 1
From: Sacramento
'08 AM Vantage V8 - '03 E500
So what's the "off position" in Step 3 of the instructions? The key has four positions:
1. Insert/remove
2. "Accessory" position
3. Run
4. Start
After pressing and holding the pedal, is "off" position 2 or position 1? The engine, if running, shuts down in position 2, but accessory power remains "on."
1. Insert/remove
2. "Accessory" position
3. Run
4. Start
After pressing and holding the pedal, is "off" position 2 or position 1? The engine, if running, shuts down in position 2, but accessory power remains "on."
Now did the Lord say, "First thou pullest the Holy Pin. Then thou must count to three. Three shall be the number of the counting and the number of the counting shall be three. Four shalt thou not count, neither shalt thou count two, excepting that thou then proceedeth to three. Five is right out. Once the number three, being the number of the counting, be reached, then lobbest thou the Holy Hand Grenade in the direction of thine foe, who, being naughty in my sight, shall snuff it.
Thread Starter
Senior Member
Joined: Jan 2006
Posts: 490
Likes: 3
From: Dallas, TX
sold - w211 e320, f250, rx7 race car
So what's the "off position" in Step 3 of the instructions? The key has four positions:
1. Insert/remove
2. "Accessory" position
3. Run
4. Start
1. Insert/remove
2. "Accessory" position
3. Run
4. Start
1. Turn the ignition key to the on position (position 3).
2. Press the gas pedal to the floor and hold for five seconds.
3. Turn the key to the "off" position (position 1 -don't remove the key), then release the gas pedal. - make sure to keep the gas pedal to the floor while turning the key to "off", release the pedal after the key has been turned to "off"
4. Wait at least two minutes for ECU to reset
Good reading on the E55 forum for this topic, those guys have 75 posts on this thread. I have reset twice, first time was great and the second time a few days later not so impressive....probably because I did it on my way home before leaving work and all of the traffic got my shifting points in the wrong positions. Time to reset again!
Last edited by mbuskuhl; May 19, 2006 at 07:16 AM.
Senior Member
Joined: Jan 2006
Posts: 382
Likes: 1
From: McAllen, Texas
2017 E400 CAB 2007 BMW 650i CONV
Originally Posted by Miguk_Saram
Your 1973 Chevelle? I'm gonna have to say "No" to that.
You might wanna list your "E" on your sig.
You might wanna list your "E" on your sig.
Almost a Member!
Joined: Dec 2004
Posts: 57
Likes: 0
From: New York
2001 E320
I'm going to try this on my 2001 E320, 57,200 miles. I have been noticing delay on shifting gear for last couple of months maybe this will be fixed.
I have "Check Engine" light on, and recently had my oil changed and noticed there's some oil under the transmission, seems like it is leaking. Does anyone know what I need to do or how much it'll cost to fix this problem? Thanks!
I have "Check Engine" light on, and recently had my oil changed and noticed there's some oil under the transmission, seems like it is leaking. Does anyone know what I need to do or how much it'll cost to fix this problem? Thanks!
Super Member
Joined: May 2004
Posts: 755
Likes: 2
From: USA
LS7 powered Corvette
I'm going to try this on my 2001 E320, 57,200 miles. I have been noticing delay on shifting gear for last couple of months maybe this will be fixed.
I have "Check Engine" light on, and recently had my oil changed and noticed there's some oil under the transmission, seems like it is leaking. Does anyone know what I need to do or how much it'll cost to fix this problem? Thanks!
I have "Check Engine" light on, and recently had my oil changed and noticed there's some oil under the transmission, seems like it is leaking. Does anyone know what I need to do or how much it'll cost to fix this problem? Thanks!
