I have a 95 325ic with 80k miles.
I have a problem whereby I am doing approx. 50mph on a freeway for instance and I try to accelerate quite rapidly.
Upon accleration, the car will drop a gear and the RPM's will increase as per normal, however, the RPM's won't sustain at the higher level, instead they fall to a much lower level, hence the car can't maintain power.
It is quite frustrating particularly when I need the power.
Sometimes with the accelerator at a constant level, the RPMs will oscillate between high and low, it's like the car is on the borderline of two gears and can't decide which gear to be in. It is like a threshold level or someting.
So I'm not sure how to approach this problem??