Rear Brake Caliper, Servicing

Rear brake caliper, servicing

CAUTION: When repairing, use all the parts in the repair kit.

Note: Lightly coat the brake caliper bore, piston and piston seals with brake cylinder paste B 000 700.






1. Self-locking bolts
Always replace
35 Nm (26 ft lb)
Loosening and tightening: counter-hold at guide pin

2. Brake caliper housing
With lever for parking brake cable
Replace if there is leakage at lever

3. Sealing ring
Remove with screwdriver - Fig. 3

4. Piston with automatic adjustment
Removing from brake caliper housing - Fig. 1
Installing - Fig. 5
Piston diameter: 38 mm

5. Protective cap
Outer sealing lip fits on piston - Fig. 2
Inner sealing lip fits in groove in caliper housing - Fig. 4

6. Brake pad carrier with guide pins and protective caps
Replacement part supplied assembled with sufficient grease on guide pins
Install repair kit if protective caps are damaged
Use grease included with kit to grease guide pins

7. Bleeder valve
Before installing, grease threads lightly with brake cylinder paste

8. Dust cap
For bleeder valve

9. Guide pin
Grease before installing protective cap

10. Protective cap
Attach to brake pad carrier and guide pin

Fig. 1 Removing piston from brake caliper:

Remove piston by turning threaded spindle counterclockwise and knurled wheel clockwise.
Pull out sealing lip with piston.

Note: If pistons are difficult to move, use a 73 mm wrench on the flats provided (arrow -A-).

Fig. 3 Removing sealing ring:

Use screwdriver to remove sealing ring.

Note: When removing, make sure that the cylinder bore surface is not damaged.

Fig. 4 Installing inner sealing lip protective cap:

Press gently into groove in brake caliper housing using screwdriver.

Note: During this process, hold the piston in position in front of the brake caliper housing.

Fig. 1 Removing piston from brake caliper:

Thread in piston by turning threaded spindle clockwise and knurled wheel counterclockwise.
Turn in fully.

Note: While threading in, the outer sealing lip of the protective cap seats in the groove of the piston.