I have a 2014 E550 Coupe that I purchased new in June, 2013. I have taken it to the dealer 3 times for the same problem with the brakes and now need to take it in for a fourth time for the same problem. They do not or cannot tell me what is causing the problem and all they do is replace the pads and rotors. Each time has been covered under warranty but the warranty will eventually expire and I do not want to have to pay to have parts replaced annually which is how often I have had to do this. The service adviser at Mercedes of Boerne, in Boerne TX (I live in San Antonio) told me when I was there last time that it was "a one time fix under warranty" which I did not agree to as they have to honor the warranty and their work.

I am putting together a formal complaint to Mercedes and that dealership but in the meantime, does anyone know what is causing the warping? Suggestions on what to do as the warranty will expire in about 8,000 more miles.

 

You don't really descibe your problem in enough detail in order for anyone to venture a guess. I'm going to assume that you are getting pulsation from the brake pedal when applying the brakes. Is this felt both at low and high speed? Do you drive in a lot of mountain terrain? Do you somehow get the brakes very hot? Is the problem in the front or rear brakes? Is the parking brake releasing all the way?

All of these things need to be known in order to diagnose your problem.