PeachParts Mercedes-Benz Forum - View Single Post - Wheel Rim Dust Shields: More Trouble Than They're Worth?

JHZR2 · #10 04-09-2011, 12:02 PM

Every disc brake Ive ever seen besides on trains have a rear cover, i.e. the one that s inboard of the disc.

No othr w123 besides mw current 1982 have had the clean wheels covers that go otboard of the discs , up against the wheels to prevent dust from that direction.

I pulled them from my front wheels, ad not my chrome bundts are very dusty. ive never had any issue with warped rotors or whatnot due to the kleen wheels type things. I dont think the holes in the wheel on the outside are really there for cooling anyway. On my BMWs, they have a duct from the front of the car to the disc.

I always thought the wheel was more of a heatsink than much else.

I know that my 240D with wheelcovers show NO dust at all, and the bundts with the kleen wheel things also stay very clean. As I dont think that any of us do performance driving in our w123 cars, Id say that they are a good idea. If brake fade or issues are a problem, consider pad choice and upgrading the discs to w12 vented rotors to add a bit of thermal mass.