speed doc

I was reading a thread on here about cars feeling a little sluggish and that resetting the ECU would help. Well I did the ECU reset protocol yesterday and wow it awoke the beast! I drive my car in trafffic regularly so I guess it got trained into slow poke mode. It feels like a different car, crisp throttle response, revs faster, etc. I'm just amazed. This forum is a wealth of great knowledge. Thanks Guys.

Here is the sequence just in case anyone is interested.

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.

Enjoy!!!!

bigben320e

I will try this out. Do you have a close-up on those rims? I would like to see one.

BTW- What a coincidence, you drive a SL55, and have 55 posts on here! LOL.

speed doc

Sure, I'll dig some up. They are 20 inch MHT LLC'S. Great wheel and very strong and durable so far.

Sunir

I gotta try this...people have been raving about this on the W211 E55 forum!

IngenereAMG

What you are resetting with this procedure, is actually the throttle bodies. This tends to help responsiveness.

Rock on!

speed doc

That makes sense Dino because the car feels incredibly more responsive.

FLSL55

You turn the key one click or two?

speed doc

One click or just before it goes to the starter position.

Brent72

Thank you for this piece of info. I'll definitely be trying it out on my 55.

FLSL55

What do you mean by the starter position? Do you mean the car will start? Or do you mean the second click is the starter position and the third is the car actually starting.

speed doc

The position just before you start the car ( the position the key is in when the car is running, that may be a better explanation) Hope that helps.

FLSL55

Maybe you should update the original post to say the second click.

sjcsl55

Position 0 is the "off" position, position 1 is the "acc" position for accessories, position 2 is the "on" position, when the car is in use, and position 3 is the "start" position, used when starting the car.

G_KATS

if i do this, will it reset my KM for service A back to zero ???

sjcsl55

no, it only affects the throttle response part of the ECU... resetting your service timer is done using a different procedure.

cal1

Would this make sense to do on a modded ECU? I'm running an 80mm TB also.

G_KATS

i tried doing this today and nothing came up ....??? i drove the car and it felt the same too me

does somthing show on the dash saying ECU reseted ??? let me know thanks !

jturkel

this is perfectly safe to do. it will not hurt anything. after about 250-300 shifts, your car learns your driving style and tends to shift and provide power the way that is most comparable to your driving style. this simply resets this and results in more raw shifts and better throttle response. i do this all the time on my car as to many many members here with modded cars.

nothing shows up on the dash. at all.

EDIT: https://mbworld.org/forums/w211-amg/...set-works.html

you will notice a difference. you can wait longer too. it works fine for me after 2 minutes. i used to wait 30 minutes until i found out 2 minutes works just fine.

FLSL55

Jturkel,

Your method differs from all the others I have seen on this board including Speed Doc's on post #1 above.

cal1

[quote=jturkel;3594054]this is perfectly safe to do. it will not hurt anything. after about 250-300 shifts, your car learns your driving style and tends to shift and provide power the way that is most comparable to your driving style. this simply resets this and results in more raw shifts and better throttle response. i do this all the time on my car as to many many members here with modded cars.

Thanks a bunch, I am going to give it a try. I had thought that because I generally drive like a madman or lets say "spirited" that it might not do much, but nothing to lose only to gain.

jturkel

edited my post. it was late and i posted it in the wrong order. check out the link.

m4xm1l10n

Are this ECU Reset procedure stickily to the 55K Cars or to any MB cars ? I have the SL&S500
Thanks

jturkel

should be any car

laitsabr

Wow! It certainly worked on my 06 E500 wagon (stock).
Many thanks for giving me a "newer" car!

Fantasm

works for me as well, and used to work on my sl55 too.
i dont even wait the 2 minutes after wards. i turn it off, pull the key out, then put it back in and its done.