i assume your talking about the windows??if so locate the rubber boot going from the door to the fender and try wiggling it while pushing the switich with the key on.the problem is usually in this harness where it pivots each time the door is opened.
I have a BMW roadster 2000. When I shut the engine off I hear a humming noise from the engine...
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I have a BMW roadster 2000. When I shut the engine off I hear a humming noise from the engine compartment. What is this?