Quote:
Originally Posted by Jarhed1964
No, I have a 3.0 N52N
Oddly, when I turned off the AC thinking it was that, it still whined. I wonder if the 4.8 and the 3.0 use the same AC unit. Also, I have Adaptive Drive, so that might change things.
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It will still whine with the AC on or off. The bearing is always spinning on BMW compressors. There is no clutch.