I just noticed that my rotors on the front are the same ones. Meaning that the drivers side is also on the passenger side.The rotors are directional so I look on line and I cant find an actual left and right...they are all driver side only when looking at the pictures. Whats up with that? Part number 230-421-07-12 seems to be for both sides. Anyone run into this.

 

Wow! After a night of research its hard to believe that the drivers side rotor is also the passenger side rotor!! The vanes are going in the wrong direction for the passenger side. What good is that ? Very strange for Mercedes.