E39 M5 and E52 Z8 Discussion
I have a mystery 'whirr'whirr'whirr' sound under power.
Im thinking its a bearing, but my wheel bearings seem ok.
So far I'm hoping/guessing alternator bearings.
Anyway, when I push in the clutch it goes away but if I push the clutch in while rolling and rev it I can hear it [seems to be fairly...