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      08-05-2012, 06:34 PM   #2
radiantm3
Apex Everything!
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Drives: >1000 HP in my garage
Join Date: Sep 2008
Location: Danville, CA

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Garage List
2011 E92 M3  [4.80]
2013 BMW X5M  [4.33]
2014 BMW i3  [0.00]
That's what mine sounded like when my bearings were going bad, but never at idle. I had to rev is a couple hundred rpm's and then you'd hear that exact sound if the engine was fully warmed up.