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      01-14-2013, 12:54 PM   #1
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Drives: 2012 M-Sport 535i xDrive
Join Date: Jun 2008
Location: Scarsdale, NY

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OEM Aluminum Window Trim - Clearcoat or No Clearcoat?

I have a 2008 E92 335XI and the OEM aluminum window trim is starting to show signs of wear and heavy water stains. I've read a few posts that recommend using Autosol - Aluminum Polish, and following it up with a polish, then sealant. But most aluminum polish is for un-treated aluminum that isn't clearcoated. If you use this Autosol polish on clear coated aluminum it will remove the clear coat permanently, and then re-polishing on a routine basis to preserve the luster.

My gut says that the window trim IS clear coated and that I should stick with a medium-grit polish. Does anyone have a definitive answer?

Thanks for your help!