Help: Humming Noise From The Rear ??? - BMW Forum -
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#1 (permalink) Old 06-16-2005, 10:28 AM
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hey guys & gals...

I have an e36 and i got this humming noise from the rear.
It only happens around 50 and 110 km/h speed (the noise is gone below and above those speed) + it only happens when i step on the accel pedal.
The sound instantly gone when i release the accel pedal.

Any idea what could be the problem?

I've done alignment and balancing for all wheel, and the tyre threads are 85% good.

Thx for all your ideas !
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#2 (permalink) Old 06-16-2005, 10:40 AM
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Check rear driveshaft, oil level in rear differential and check for rear wheel bearings... they hum when they start going... and check in that order to narrow things down.
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#3 (permalink) Old 06-16-2005, 11:05 AM
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^^ precisely.

Complete mod list and pics:

My 1993 325i
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