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NewM3driver · 12-15-2016, 07:32 AM

Its a tiny pebble caught in the brake shields. Sounds horrible, is really harmless. It's a joke that BMW says they don't know what it is.

12-15-2016, 07:32 AM	#582
NewM3driver Colonel 1110 Rep 2,007 Posts Drives: 2017 M3 ZCP Join Date: Nov 2008 Location: CT iTrader: (0)	Its a tiny pebble caught in the brake shields. Sounds horrible, is really harmless. It's a joke that BMW says they don't know what it is.
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