Is this a quality manufacturer?

Bet your *** .
I've been running Zimmerman cross-drilled rotors for 2 years.
They are great.
Zimmerman is an OEM supplier ( based in Germany ), to many manufacturers.
Have a look at their site: http://www.otto-zimmermann.de/

Thanks! Getting ready to replace the squealing rotors on my CLK500...I think they are Brembo's; I guess MB must have gotten a very large supply of these rotors that were just not up to spec which are creating the squealing that's been reported here by many on new cars.

Hope I have better luck with the Zimmies

I too heard good things about this manufacturer. Do they make rotors for an R129 SL600?

Is this for the CLK500? where did you find them? I had to replace my rotors at less than 28,000 miles but I couldn't find anything but OEM parts. I'd rather have after market because they would probably last a lot longer.

Here's the link:

www.autopartswarehouse.com

Front CLK500 rotor part #N1000-140856

The rotor came today; seems to be very high quality and from Germany (as also stated a few posts above). My stock rotors squealed like crazy and were replaced by the delaer several times and lastly only the passenger side still squealed but since MBUSA would no longer change the rotors (sometimes MB is a real pain to deal with) I took matters into my own hands and bought a new rotor and replaced it myself. Since the brake squeal has effected many late model MB's I believe (as does my tech at the dealership) MB got a very large quantity of slightly defective rotors which are causing the squeal . The part was only $109.27 including shipping and it came ups in one day! With a little direction from some on this forum it was a snap to install and I'll glady guide you through it if you need.

Thanks a lot! I actually already had my brakes done. I wish I found these zimmermans, it's a little cheaper than the OEM ones. As for installation is there a how to posted somewhere? I assume my rears are going to go soon.