I don't believe buying specific MB rotors will solve the underlying issue unless they are the rotors themselves. Try a different rotor from your local parts store as they shouldn't be that expensive if you are going to buy new rotors because I'm sure every single forum member is not running MB rotors from the dealer on their cars (I'm certainly not) and none are having any issues with theirs. Mine came from AutoZone a few years back and no issues.

__________________

1990 190E 3.0L