Rear Brake Calipers (C43), Servicing

Brake caliper, servicing
Rear brakes with automatic adjustment





Note:
^ Always install the complete repair kit.
^ After replacing brake pads and before moving vehicle, depress brake pedal several times firmly to properly seat brake pads in their normal operating position.
^ When siphoning brake Fluid, always use a bleeder bottle that is used exclusively for brake Fluid. Brake Fluid is poisonous. NEVER siphon brake Fluid with your mouth!
^ Brakes can be tested on all normal commercial test equipment, provided the two brake test rollers are not driven faster than 5.5 km/in.

1. Hex bolt, self-locking, 35 Nm
^ Always replace
^ When loosening and tightening counter hold on guide pin
2. Brake caliper housing
^ Unbolt caliper housing when changing brake pads
^ Hose must not be twisted when installed
^ Do not disconnect brake hose when changing brake pads
3. Brake pads
^ If required, always renew both sides together
^ Do not disconnect brake hose when changing brake pads
^ Checking thickness: Refer to specifications.
4. Pad retaining spring
^ Always replace when changing pads
5. Brake disc
^ If required, always replace both sides together
^ Remove brake caliper prior to removing
^ Lightly coat contact surfaces between brake disc and wheel hub with polycarbamide grease G 052 142 A2
^ Check degree of wear (wear limit)
6. Hexagon socket head bolts
^ M10 x 60
^ Always renew
^ M10 x 125 x 50
Tightening torque:70 Nm plus an additional 90° 1/4 turn M10 x 10 x 20
^ Tightening torque: 95 Nm
7. Brake carrier with guide pin and protective cap
^ Supplied as replacement part assembled with sufficient quantities of grease on guide pins
^ If protective caps or guide pins are damaged, install repair kit. Use grease packet supplied to lubricate guide pins.
8. Banjo bolt, 40 Nm
9. Brake line with banjo union Hose must not be twisted when installed
^ Unbolt from brake carrier when changing pads
^ Do not disconnect brake hose when changing brake pads
10. Seals