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      12-11-2022, 11:23 AM   #10
TupperBMW
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Drives: 2022 M850i Gran Coupe
Join Date: Nov 2021
Location: Chicago area

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^ I don’t know. I’m kinda hoping somebody here knows.

I’m sorry I didn’t take a pic, but just to be clear: the rust was not on the rotors themselves. After a simple test drive, rotor rust will go away. The rust was on the wheel hub.

It’s bothersome to me because my M340i, driven in winter and with over 14k miles, doesn’t have this problem.
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