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Old 10-09-2012, 11:01 AM
Zeichen311's Avatar
Zeichen311 Zeichen311 is online now
Lost but making good time
Location: Here, there or in transit
Join Date: Mar 2011
Posts: 4,116
Mein Auto: '11 335xi 4dr; '03 330Ci
Try SONAX Wheel Cleaner Full Effect. Pros in my area (and elsewhere) are raving about this stuff. I won a bottle as a door prize a few months back and found it really, really, really works. Yes, it is expensive compared to parts-store crap but you won't go through gallons of it to get results, either. Spray on, let it dwell until fully reacted (complete color change) and hose off--a narrow-jet garden hose nozzle helps. Resist the urge to scrub, wipe or brush it while it's reacting--it will significantly reduce the effectiveness.

Even with the E90's low-dust pads, my wheel barrels get pretty grungy from rotor dust. I reach most of them with a brush through the spokes, but because there isn't enough clearance between caliper and barrel I would have to roll the car a few feet to clean that area. Since I started using the Sonax cleaner I haven't had to do that--it does all the work with just a spray & rinse. The wheels only need a quick brushing once a month or so to deal with accumulated road film.

IIRC the half-liter bottle lasted for about two months of weekly cleanings.
2011 335xi Individual 6MT - Azurite Black Metallic / Oyster & Black / Anthracite Maple + all the good stuff
2003 330Ci Sport 5MT - Black Sapphire Metallic / Natural Brown / Myrtle + the important stuff

   N47 35' 30.13" E11 10' 33.36" - End of can guess what came next. BMW CCA
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