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Old 09-06-2012, 03:10 PM   #7
Robb
EX E30 M3 Owner
 
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Join Date: Mar 2005
Location: North York
Posts: 2,482
The rotors are glazed with brake residue.
Get a brake service done to clean them or machine them depending on how thick the rotors are. Also could be an intermittent sticky caliper, so you best service the calipers as well.

I use HP+ and when braking, they squeal like a girls first time !
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