Some of the break dust and general dirt has caked on to my inner wheel rims (fronts) and I can't get it off. It's raise up and spraying with cleaner pre-wash didn't help. What can I use to loosen this off without scratching the coating?
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2011 135i N55 | Black | M Sport | DCT | Sunroof | Pro Nav | Alpine Hi-Fi | Commbox | Tint | blah blah
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