Parking Brake System: Description and Operation

Rear Brake Caliper with Electromechanical Parking Brake

• When servicing, install entire repair kit.

• Apply thin coat of Assembly Paste (G 052 150 A2) to brake cylinders, pistons and seals.

• Bleed the brake system after servicing and installing the brake caliper. Refer to => [ Bleeding Brake System ] Procedures





1 - self-locking screw, 35 Nm

• always replace

• When loosening and tightening, counter-hold at guide pin

2 - Brake caliper housing with actuator

• Pre-bleed caliper housing after repairing. Refer to=> [ Bleeding Brake System ] Procedures

3 - Bleeder valve, 10 Nm

4 - Dust cap

• Push onto bleed valve

5 - Seal

• Removing and installing, refer to=> [ Rear Brake Caliper Piston with Electromechanical Parking Brake ] Rear Brake Caliper Piston with Electromechanical Parking Brake

6 - Pressure nut

• to operate parking brake

7 - Pistons

• Removing and installing, refer to => [ Rear Brake Caliper Piston with Electromechanical Parking Brake ] Rear Brake Caliper Piston with Electromechanical Parking Brake

8 - Guide pins

• Grease before pulling on protective cap

9 - Protective cap

• Pull onto brake carrier and guide pin

10 - Brake carrier with guide pins and protective cap

• Supplied as pre-assembled replacement part with sufficient grease on guide pins

• If protective caps or guide pins are damaged, install repair kit. Use supplied grease packet to lubricate guide pins.

11 - Protective cap

• Removing and installing, refer to=> [ Rear Brake Caliper Piston with Electromechanical Parking Brake ] Rear Brake Caliper Piston with Electromechanical Parking Brake

• Pull onto piston with outer sealing lip