There is a right turn about 100 yards from my apartment building each day that i take to work. Sometimes i have to wait for the green light, and other days i can go through. When i go through on a green light i turn the corner and get a strange downshift.

I know the 535i has terrible auto's, but this is the ONLY wierd thing this tranny does. Other than this, this tranny is as smooth as silk.

So basiclly i turn the corner, tap the gas, and there is a delay. It downshifts the motor revs, and then thump, and it is all over. I am then on my way with no problems.

I am having the fluid changed today, but is there any sensors that could screw with this? Maybe i am just being paraniod cause the tranny needs to warm up?

Thanks for your input.