Parking Brake Shoe: Service and Repair

Removing and installing the parking brake shoes

Note: The following illustrations show the right-hand side of the vehicle.

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.





2. With a screwdriver, turn the adjustment device towards "release" through a wheel bolt threaded hole.
3. Remove the brake caliper from the wheel carrier and suspend it in the wheel arch (do not open brake hydraulics). First, pull out the electrical wires on the brake caliper holder and the brake pad wear wire on the wheel carrier holder.





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.






5. Remove compression springs (No. 10), adjustment device (No. 2) and return spring (No. 4). Remove parking brake shoes and return spring (No. 5).

Installation
1. Lightly grease the adjustment device (No. 2), pins (No. 8/No. 9.) on the actuating lever (spreading lever) and the sliding surfaces of the parking brake shoes.
2. Install the actuating lever (spreading lever) (No. 12), brake shoes, return springs, compression springs and adjustment device. The spreading lever (No. 12) is a 1-part assembly that cannot be disassembled. This assembly consists of part Nos. 6, 7 and 8.

Note: The hook (the curved end of the spring) of compression spring (No. 10) must point upward on the upper brake shoe and downward on the lower brake shoe (arrows / Figure above).

3. Again check to ensure that the parking brake shoes, adjustment device, return springs, compression springs and spreading lever are positioned correctly, and adjust if necessary.





Note: Ensure that the hooks (curved spring ends) of the compression springs (No. 10) correctly clasp the wheel carrier A (if necessary, check with the aid of a mirror).
Figure above shows the upper compression spring.

4. Clean the leveling and centering surfaces on the brake disc and wheel hub. Then apply a very thin coat of Optimally TA to the centering surface on the wheel hub.
5. Fit the brake disc (right and left brake discs are the same part / exception GT3).

Notes only for 911 GT3
Do not confuse right and left brake discs during assembly. Distinguishing characteristic: Involute shape and spare part number (SP No.). The flat surface of the brake discs is marked with R = right or L = left.
Spare part on left-hand side third group number is odd
Spare part on right-hand side third group number is even
Example:
SP No. Left brake disc: 996.352.405.00
SP No. Right brake disc: 96.352.406.00





- 911 GT3 brake disc
- L = left-hand side

6. Adjust the parking brake shoes and the parking brake cables. Refer to Adjustments. Fit the brake caliper. Tightening torque of the fastening screws: 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.

On the 911 GT3, the brake caliper fastening screws on the front and rear axle are 5 mm longer than on the 911 Carrera (996). The screws are also different colors.
911 GT3 = red (77 mm long)
911 Carrera (996) = silver (72 mm long).