Originally Posted by sleepyca31' post='423737' date='May 12 2007, 03:44 PM

Well I keep forgetting to post this but I forget what post I read it in so started a new one so nobody would miss this. If you have an auto and experience any "rough" shifts. For example for me it is when I would downshift from 3-->2 and ESPECIALLY from 2--> 1, it would feel like my car was a rocking chair.

Well then someone posted a tip and links to other threads on this in different forums I believe and was confirmed by a BMW tech who chimed in on the thread-and it WORKED well for me.

You put your key in/hit start ONCE so the electronics of the car come on but it is not started.

Then hold down the gas, past the downshift point to the floor for 25-30 seconds straight.

If you listen, at about 25s exactly you will hear some "noise" and that is the tranny "resetting" itself to factor specs

Like I am sure you know these cars are smart and the auto tranny is no exception. It adapts and learns your driving style-but the catch is, which is why I noticed an improvment. Apparently it "learns" for about 1000 miles and then kind of "locks" those settings in so-to-speak. So however you drove the car off the lot or whover drove it off the lot-it was really those first 1k that determined how the autobox shifted itself.

So anyway after I did that my downshifts were like 10 times smoother and overall shifting was much crisper and smooth.

Definetly try it out if you have an auto. It will just re-adapt to your current driving style-which is great since I totally drove different when I first got the car.

Originally Posted by bimmerlust' post='684559' date='Oct 3 2008, 12:56 PM

It seems like doing this would flood the engine. Why doesn't it? Can you immediately crank and drive afterward?

Originally Posted by Rudy' post='684897' date='Oct 3 2008, 10:31 PM

No flooding -- everything's electronic now. In the old days, when the gas pedal was mechanically connected to a carburetor or other type of mechanical throttle valve, sure you might flood things...

Originally Posted by bimmerlust' post='685069' date='Oct 4 2008, 03:54 PM

I dont' have a problem with rough shifting, but I do have a very annoying thing where you have a VERY distinct pause between pressing the gas and the car moving. I have observed that this does not occur when I'm starting from a stop in a straight line and can push harder. It's most noticeable when I'm starting from a stop and need to go slow. Therefore, I don't think it's a "pause" as much as "play" in the pedal. The other thing is that it shifts VERY quickly from 1st to 2nd when driving around at slow city speeds. It's like you have DELAAAAAAY, go, shift. Very annoying. Does this sort of symptom sound like it would be corrected by the 24 second reset procedure?