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View Full Version : ECU Reset as found on MBWorld



C43inNC
08-10-2012, 07:29 PM
I stumbled across this old thread on MBWorld. I don't know if it's applicable to just AMG 202s or all, but I figured I'd share the info. The previous owner of my C43 drove a lot in winter mode to save gas, so I thought this would be good for me. I did this, and drove. I touch the gas, my head hits the headrest violently. I seriously thought my tranny was on crack cocaine it was working so well. I advise everyone to try this and see if it works for you like it did for me, I'm VERY happy with my C43 right now :D

ECU RESET AS FOLLOWS 1.TURN KEY TO ON POSITION. 2.FLOOR ACCELERATOR HOLD FOR 5 SECONDS, TURN KEY TO OFF POSITION DO NOT REMOVE KEY RELEASE ACCELERATOR .DO NOT OPEN DOOR WINDOWS ETC.3.WAIT 2-3 MIN.FOR COMPUTER TO RESET.Start car drive aggressively for approx 10 miles.The computer will 'tailor' itself for a more aggressive performace.This worked very well on my car and you can definatly feel the difference especially if the car has been driven lazily for a whil.Like A SHOT IN THE A@@!!

Sulaco
08-10-2012, 08:09 PM
That resets the transmission's shift patterns.

C43inNC
08-11-2012, 03:52 AM
....which would explain why my tranny was on crack. lol. Ah well.

W202FTW
08-11-2012, 06:55 PM
If you want to reset the ECU just kill the battery for about 15 seconds.

8=Anonymous=8
08-11-2012, 09:41 PM
....which would explain why my tranny was on crack. lol. Ah well.
Close enough to a ecu reset :D

Yujin
08-12-2012, 06:26 AM
Yeah, I wasnt sure that was the procedure for a ECU reset. Lol

Mike51809
08-27-2012, 04:15 PM
I just did this again then just put it to the floor for 10 minutes n holly shit! I forgot the difference it made

W202FTW
08-27-2012, 04:40 PM
Just note that the transmission learns your driving patterns as you drive. The harder you drive, the longer it holds each gear.

Mike51809
08-27-2012, 04:44 PM
True that, but it kicks down way quicker to get to the power because for a while it wouldn't go to third at like 60 it'd only go to 4th unless I did it manually lol

chimchongdlight
08-27-2012, 05:19 PM
Ive read about this, but i heard its only like 97+ cars? I have a 96 280. Anyone know if itll work?

W202FTW
08-27-2012, 05:48 PM
Ive read about this, but i heard its only like 97+ cars? I have a 96 280. Anyone know if itll work?

No, the 4 speed automatics use vacuum to change gears. However there is an adjustment switch to change how soft or firm the shifts are.

SirMax
10-12-2016, 11:34 PM
What exactly is this adjustment switch and/or how to I make adjust it? I, too, have a 96 280
to clarify, I want the firmest of firm shifts possible.

BlownC43
07-08-2019, 08:25 PM
got to try this