1999 ML320(mine) and 2004 ML500 (mothers) and 2007 GL450(fathers)
On my dads car, 2004 ML500, the rims have some black break dust build-up. I have tried using soap and water, but that didnt work. Then I used some windex which worked with my ML rims but this still does not work. On my final hope, I tried our power washer on it and even that only took off a little of the dust. Does anyone know how to clean the break dust off of these rims. And also why is it easier to clean the 1999 rims then the 2004?