Newbie with a question
I own a 1995 e38, and have a nagging problem. When the car is running, I get a high pitched whine from somewhere in the rear end. It is not speed specific, it gets
louder between 800 and 1100 RPM'S, but it never gets higher pitched. And if it matters, the rear suspension creaks when any passenger gets out of the car. I don't suspect the diff, because it should br speed dependent. Is there a pump in the rear end for stability or ride i would appreciate any help or ideas. Thanks in advance.