Question about 2001 BMW Z3
I just noticed that there is a faint whirring sound when the transmission is engaged kinda like a superchargerish sound that is, and whenever i disengage the transmission to neutral, the whirring sound goes away. BTW, my tranny is an A/T.
It is possible that your differential could be making the sound. However, if the sound disappears when putting the trans in neutral, I would suspect that the differential should still be making noise. If the torque converter is worn, then you would have noise while in gear, but probably not as noticeable while in neutral. Depending on the production date of your car, 2000-early2001 Z3 had an issue with the torque converters.
Posted on Mar 15, 2009
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