Operation CHARM: Car repair manuals for everyone.

Rear Brake Disc Replacement




Removal
1. Remove the rear wheel. Open the plug connection on the wheel carrier and pull out the plug for the brake pad wear indicator. Unclip the electrical wire on the spring strut.








2. With a screwdriver, turn the adjustment device towards "release" through a wheel bolt threaded hole.
3. Undo the holder for the brake hose/brake line on the wheel carrier. Remove the brake caliper from the wheel carrier and suspend it in the wheel arch (do not open brake hydraulics).





4. Take off the brake disc after removing the countersunk screws (arrows). If a stuck brake disc cannot be removed by gentle tapping with a plastic hammer, evenly screw hexagon-head bolts into the two M8 threads of the brake disc, thereby pressing off the disc.

Installation
1. 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.
2. Fit the brake disc.

Note The right and left brake discs are the same part.
^ Boxster: internally ventilated brake discs ([diameter] 292 mm / new thickness 20 mm)
^ Boxster S: internally ventilated and perforated brake discs ([diameter] 299 mm / new thickness 24 mm)

3. Adjust the parking brake shoes and the parking brake cables. Fit the brake caliper. Tighten the new screws of the brake caliper with 85 Nm (63 ft. lbs.). Ensure that the brake hose and brake line are in a perfect position.

Note Replace the brake caliper fastening screws after each removal.