Originally Posted by DaveJ

There is a product from http://www.kleenwheels.com/ that is a brake dust cover that greatly helps and almost elliminates brake dust from accumulating on the rims. I used them on my old '98 E320 with succcess. However, depending on the rim, you may not like how it looks. If my GS300 had brake dust, I stil wouldn't use a Kleenwheels on these rims. They can be unattractive, especially for the GS. Also, some people feel they can contribute towards brake fade because of heat buildup behind the dustcover. I never noticed it, but then again I wasn't driving my car on an Autocross either.

Dave