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      12-28-2012, 08:40 AM   #131

Drives: '08 335i - BMS DCI, JB4
Join Date: Oct 2012
Location: Dallas, Ga

iTrader: (0)

Originally Posted by e92er
Originally Posted by chemgeek View Post
Did you try to reset the transmission? It is really easy to do. It even got rid of the rediculous lag that existed in D upon starting from a stop. Mine used to jerk forward pretty bad when the car was warming up in the morning.
I can do it myself?!?!?? How??
Saw this on "bimmerforum" so do not credit me with this write-up! cant wait to do this today!

"Over time the ECU in the trans learns your driving style and that is what it keeps in memory. The throttle is "Drive By Wire" and adapts and personalizes to your particular driving style. However, there is a way to set the ECU back to factory default. I have done this with my 07 328 and it works fine. I've done this with several Mercedes. The only difference with a push button to start/stop engine system is that you must use the start button instead of turning the key to it's first position and again to simulate the off position.
Here it is; How to do a TBA: Throttle Body Adaptation reset.
Resetting the Adaptive Driver Memory for the transmission.

Works with any car that has Driver Adaptive Electronic Controlled Transmission.

1. Get in your car, it doesn't matter if you close the door or not.
2. Turn the key to the on (not start) position, the position just before the starter turns over. BMW: press start button – foot off brake - all idiot lights on.
3. Press the gas pedal to the floor with the key in the "on" position. BMW: All idiot lights on.
4. Hold the pedal to the floor for five seconds, then turn the key back to the "off position". BMW: foot off brake press start button - all idiot lights now off (don't remove the key), then release the gas pedal.
5. Wait a full 2 minutes for a full electronic alignment. Don't remove the key.
6. Start engine, drive the car, notice the difference."

2008 335i - JB4 / BMS DCI / Premium Package / Sport Package / 6AT