Something does not seem right about it, the fact that the motor makes that noise and its pressed right against the door. I have changed these regulators many times in the past for other cars and never ran into any problems until the X5... Do you recall what regulator on amazon you purchased? My next question is how could it not be installed correctly? all the screw holes lined up with the bolts and the window seems to slid through the inner track. Thanks again for your response David.X5!