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      07-08-2008, 01:18 PM   #6
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AwesomeM3's Avatar

Drives: E92 M3, E70 X5, 1967 Corvette
Join Date: Oct 2007
Location: New Jersey

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Garage List
2015 BMW X5 M  [0.00]
2008 M3  [5.00]
2009 X5 48i M Sport  [5.00]
(SOLD) 2001 M3  [0.00]
Originally Posted by AwesomeM3 View Post
I have the same problem. Never had it with my E46 M3.
Originally Posted by ben@tirerack View Post
Rust off the rotors is the likely culprit. Aluminum wheels do not rust in the same way that iron or steel does. Oxidization on aluminum is more blackish, not the orange-looking rust that comes from iron/steel.
I should have been more specific...the rust on my M3 is coming from the rotors, not the wheel. I notice it after I wash my car.

F85 X5 M on order | 2008 E92 M3 Coupe 6MT | 2009 E70 X5 xDrive 48i M Sport | 1967 Corvette Coupe
2001 E46 M3 - Sold | 1997 E36 M3 - Sold | BMW CCA member