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2002 Mercedes-Benz S430

Question: why are the tire rims filled with blacks sut?

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caseygirl, San Mateo, CA, January 22, 2010, 17:06
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wheels rims have black sut even though I clean them

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  • Answer #1

    dandd January 29, 2010, 11:39
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     Master

    This is from the brake pads wearing out. it is brake pad dust. you can try to get better pads. Are you using factory pads? they are less dusty.

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