The R1 Concepts drilled black brake rotor for 2003–2017 Mercedes‑Benz CLS400 (rear left) is provided as the replacement rotor specifically for that rear-left application. The part description specifies a drilled finish and black coating, making this rotor the item identified for rear-left brake replacement and service on supported CLS400 model years.

R1 03-17 Mercedes-Benz CLS400 Rear Left Drilled Black Brake Rotor