Rear brake caliper, servicing
WARNING: This page is about a different variant/trim than selected.
NOTE:
- When repairing install all parts supplied in repair kit.
- New brake calipers are filled with brake fluid and pre-bled.
- Apply thin coat of assembly lubricant G 052 150 A2 to brake cylinders, pistons and seals.
- When carrying out repairs it is essential to pre-bleed the brake calipers (without brake pads) before installing in the vehicle. Refer to Pre-bleeding brake caliper
1 - Self-locking hex bolt, 35 Nm (26 ft. lb)
- Always replace
- When loosening and tightening counter-hold on guide pin
2 - Bleeder valve, 11 Nm (8.1 ft. lb)
- Apply thin coat of assembly lubricant G 052 150 A2 to threads before installing
3 - Dust cap
4 - Guide pins
- Grease before pulling on protective cap
5 - Protective cap
- Pull onto brake carrier and guide pin
6 - Brake carrier with guide pin and protective cap
- Replacement part is assembled with sufficient grease on guide pins
- If protective caps or guide pins are damaged, install repair kit. Use grease packet supplied to lubricate the guide pins.
7 - Protective seal
- Pull outer sealing lip onto piston
8 - Piston with automatic adjustment
- Removing and installing. Refer to Rear brake caliper piston, removing and installing
- Apply thin coat of assembly lubricant G 052 150 A2 to piston before inserting
9 - Sealing ring
- Removing and installing. Refer to Rear brake caliper piston, removing and installing
10 - Brake caliper housing with parking brake cable lever
- If a leak exists at the parking brake cable lever replace brake caliper housing
- After repairing, pre-bleed caliper housing. Refer to Pre-bleeding brake caliper