Guys, for you concern the brake-dust, I have testet this
Enjoy..
http://f10.5post.com/forums/showthread.php?t=559065
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2011 F10 535i Sophisto Grey/Oyster, ACS spring, Forged 1, Michelin PSS, Eisemann Quad-Exhaust,
2013 991 Carrera S PDK, Aqua Blue/Beige, PSE, PDCC, Sport Chrono Package, Paddle Shift Steering Wheel, PDLS--delivery in July2013