Mystery stain on new Mercedes rim

W

wxtornado

New member
Can anyone help me identify the brown stain on this rim? This is a 2009 Mercedes and it's only on one (rear) rim, and it's not stained all the way around. The only cleaner these rims have seen by me is P21S gel - tried that and have tried claying, but it won't budge. I can't feel anything when running my finger over it. Thanks ahead for any suggestions on cleaning this up.



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Stained side

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Clean side

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that doesn't look bad at all. Could be from brake dust, though it looks like dirty water spots.



Try a little bit of diluted APC with a brush. You might need to clay it but i highly doubt it. Stain should come out fairly easy.
 
I get the same spots on my minis wheels it's right user the caliper. A brush and some diluted mean green works for me
 
have you tried polishing first? I am averse to using cleaners on an area like that if its not the whole rim.



I would grab a light/medium polish and see what happens first.
 
Well, I've tried Meg's Wheel Brightener, Chemical Guys Grime Reaper cut 5:1, and Eiman Fabrik Hi-Intensity Cleaner full-strength, agitated and let dwell for about 10 minutes, and still nothing. I don't think I've ever had a stain that the Eiman Fabrik couldn't tackle, and I use Grime Reaper on my exhaust and it works great.



I think I will give up on the chemical cleaners, and move to an abrasive. I'm temped to try one of those white magic-eraser sponges, but I'm afraid it might be too abrasive. Can someone recommend a polish I can try?
 
I had something similar on my sisters eclipse. Turned out it was hot brake dust that burned the coating on the rim
 
Candor, you know, it does almost look like a burn of some sorts - strange that it's only on a small section of 1 rear rim. Sean, thanks for the 411, maybe I will pick up some M205 on my next order.
 
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