Removal & Installation

Raise vehicle and support. Remove wheels. Disconnect brake pad wear indicator sensor (if equipped). Using a punch, remove retaining pins for brake pads. Remove spring clip. Remove brake pads. See Fig 1.
Replace brake pad wear indicator sensor if insulation layer on contact plate is worn through or if sensor or wiring are damaged. Before installing new pads, press pistons into caliper. If caliper has 4 pistons, wedge 2 pistons while pressing 2 remaining pistons back.
To complete installation, reverse removal procedure. If caliper was removed, replace caliper retaining bolts. Before driving, pump brake pedal slowly until brake pads contact rotors.

Fig 1: Installed View Of Fixed Front Brake Caliper (Typical)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.