Wow!! DIY Transmission comp reset.

[skipinschool]

If you dont like the way your tranny shifts, what RPM's it shifts at, if gears change too early, or if gears change too late? Well, heres a way that your tranny could adjust to your style of driving.

Turn the Key to the "on" position (the position right before you start your engine)
Press and hold your gas pedal down for like 5 seconds
Turn Key to "off" position (dont remove the key) and then release the gas pedal.
than wait about 2 minutes or so.

afterwards, go drive your car the way you like to drive it and your transmission will readjust/relearn your style of driving (after like 5 minutes or so)


P.S. Thank you Raymond g- for this info.... Credits go to Raymond g-.

[valiance]

Is safe? could have problems?

Thank you

[eric242340-old]

Originally Posted by valiance

Is safe? could have problems?

Thank you

The relearn proceedure is perfectly safe and there are no problems, but its not an option on all models.

['91 300CE]

Couple things to add:

1. Make sure door is closed and kept closed during the entire procedure.

2. Do not remove the smart-key after turning it to the "off" position.

3. You have to wait a MINIMUM of 2 minutes before starting the engine to allow for a complete reset.

I do this quite often since I am in stop and go traffic every day and my transmission's computer gets all funky.

It takes the transmission 40 shifts to learn your driving style... this happens very quickly in stop and go traffic, so yeah, it gets stupid real quick...

[tirona]

do my 1997 cars have this feature, or only on the newer transmissions? by the way i have the 5-speed/722.6 transmissions, production date is 3/1997.

[Frankbenz]

Anybody knows if this procedure will work on 1997 E430?
Perhaps someone could come up with a list of models that thsi procedure will work with
Thanks

[Musikmann]

This is called a "driver adaptive" transmission and if yours has it, it should cover the feature in your owner's manual. I don't know the 1st year it was standard.

[amcnair]

Originally Posted by Frankbenz

Anybody knows if this procedure will work on 1997 E430?
Perhaps someone could come up with a list of models that thsi procedure will work with
Thanks

All 1997-newer W210's use the 722.6 transmission, so it should work with all.

BTW, there's no such thing as a 1997 E430. The 1997 V8 was an E420. From 1998 and newer it was the E430.

[tirona]

good to know i have the driver adaptive tranny and that i can do this comp reset. even though the car shifts fine, i will try it just to see if there is a difference. i wonder if it's ok to do this procedure every now and then without messing anything up.

[Frankbenz]

My bad, I mean mine is 1997 E420
I'll try the procedure soon
Thanks