Removing and installing rear brake disc

Removing and installing rear brake disc
Tools





Preliminary work
1. Remove wheel.
2. Remove brake caliper.

Removing rear brake disc
1. Disconnect plug connection for brake pad wear indicator on wheel carrier.
2. Remove screw plug -arrow-. The adjustment device can be turned through this bore.









3. Turn the brake disc in such a way that the adjustment device becomes visible. With a - screwdriver through the bore, turn the adjustment device towards "release".





4. Push brake pad back slightly and evenly with piston resetting fixture (replaces P83) NR.144, see Workshop Equipment Manual, Chapter 2.4 -direction arrow-.
5. Undo brake caliper on wheel carrier and hang it in a suitable place in the wheel well (do not open the brake hydraulics). But first pull out the electrical lines from the holder on the brake caliper and the brake pad wear line from the holder on the wheel carrier.
6. Remove brake disc after unscrewing the fastening screw. If necessary, remove the brake disc by tapping it gently with a rubber hammer.

Installing rear brake disc
Do not confuse right and left brake discs during assembly!
Distinguishing characteristic: Part No.! The flat surface of the brake discs is marked with R = right or L = left.
1. Check that all parts are in perfect condition and replace them if necessary.
2. Clean the levelling and centering surfaces on the brake disc and wheel hub. Then apply a very thin coat of Optimoly TA to the centering surface on the wheel hub.





3. Fit the brake disc. Observe tightening torque.





4. Adjust the brake shoes of the foot-operated parking brake with a - screwdriver.
5. Fit the brake caliper. Replace the brake caliper fastening screws after each removal. Observe tightening torque.
6. Position disc brake pads by operating the brake several times.





7. Check brake fluid level and correct if necessary. The brake fluid level must lie within the - MAX - MIN marking.

Subsequent work
Mount wheel.