Parking Brake Actuator: Service and Repair
Parking Brake Actuator
Service Repair No - 70.35.48
Removal
CAUTION: It is essential that absolute cleanliness is observed when working on the parking brake actuator. Always cover any open orifices using lint free non-flocking material to prevent ingress of foreign matter. Failure to follow these instructions may result damage to the components
NOTE: It is not necessary to carry out the parking brake bedding-in procedure if the rear brake discs or parking brake shoes have been removed for access to other components
1. Release the electronic parking brake
2. Using the Land Rover approved diagnostic system, drive the parking brake to the mounting position
3. Using the Land Rover approved diagnostic system, depressurize the air suspension.
4. Disconnect the battery ground cable
WARNING: Do not work on or under a vehicle supported only by a jack. Always support a vehicle with safety stands.
5. Raise and support the vehicle
6. Remove the rear wheels and tires
7. Remove the RH rear fender splash shield
^ Remove the 4 screws
^ Remove the nut
^ Remove the scrivet
^ Remove the clip
^ Disconnect the tire pressure antennaa electrical connector
NOTE: Note the routing of the parking brake emergency release cable
8. Release the parking brake emergency release cable and rear suspension spring air lines
^ Release the parking brake emergency release cable
^ Release from the 2 clips
9. Remove the rear brake discs
NOTE: RH shown, LH similar
10. Remove the parking brake cable bolt from the rear wheel knuckle
NOTE: LH shown, RH similar
11. Release the parking brake cables
^ Pull the parking brake cable sleeve away from the parking brake shoe expander
^ Pull the parking brake cable towards the parking brake shoe expander
^ Release the parking brake cable from the parking brake shoe expander
12. Remove the exhaust system
13. Remove the fuel tank heat shield
^ Remove the 8 screws
NOTE: LH is shown, RH similar
14. Release the rear air spring from the lower suspension arm
^ Remove the screw
NOTE: LH shown, RH similar
15. Release the rear shock absorber from the lower suspension arm.
^ Remove the bolt and discard the nut
NOTE: RH shown, LH similiar
16. Disconnect both rear suspension height sensor electrical connector
17. Using a suitable hydraulic jack, support the rear subframe
18. Remove the 4 rear subframe mounting bolts
19. Lower the rear subframe to a maximum of 20 mm (0.78 in.)
NOTE: Note the routing of the parking brake emergency release cable
20. Release the parking brake emergency release cable and rear suspension spring air lines
^ Release from the 2 clips
21. Disconnect the differential case breater line
22. Lower the subframe to a maximum of 40 mm (1.57 in.)
^ Collect the spacers from the mountings
NOTE: RH shown, LH similar
23. Release the parking brake cable clip from the upper suspension arm
NOTE: RH shown, LH similar
24. Release the parking brake cable from the rear brake subframe clip
25. Remove the 2 parking brake actuator bolts
CAUTION: Make sure that the area around the component is clean and free of foreign material
CAUTION: It is imperative that no damage is caused to the electrical connector or the module
CAUTION: Do not touch the electrical connections
26. Disconnect the parking brake actuator electrical connector
27. Remove the parking brake actuator and cable assembly
^ Release the 2 front rubber mounts
Installation
1. Install the parking brake actuator
^ Attach the 2 front rubber mounts
CAUTION: Do not touch the electrical connections
2. Connect the parking brake actuator electrical connector
3. Install the parking brake actuator bolts and tighten to 9 Nm (7 ft. lbs.)
NOTE: RH shown, LH similar
4. Install the parking brake cable to the rear subframe clip
NOTE: RH shown, LH similar
5. Install the parking brake cable clip to the upper suspension arm
^ Install the bolt
6. Connect the differential case breather line
7. Attach the parking brake emergency release cable and rear suspension spring air lines
^ Secure in the 2 clips
8. Raise the rear subframe and locate on the dowels
^ Install the spacers to the rear subframe mountings
CAUTION: Make sure that the spacers are correctly located to the bushes prior to tightening
9. Install the 4 rear subframe mounting bolts and tighten to 165 Nm (122 ft. lbs.)
10. Connect both rear suspension height sensor electrical connectors
NOTE: LH shown, RH similar
11. Attach the rear shock absorber to the lower suspension arm
^ Install the screw but do not fully tighten at this stage
NOTE: LH shown, RH similar
12. Attach the rear air spring to the lower suspension arm
^ Tighten the screw to 7 Nm ( 5 ft. lbs.)
13. Install the fuel tank heat shield.
^ Install the 8 screws
14. Install the exhaust system
CAUTION: Make sure that the parking brake cable latches correctly into the parking brake shoe expander
NOTE: Make sure that the brake cable circlip is positioned as shown
15. Attach the parking brake cables
^ Push the parking brake cable through the wheel knuckle into the parking brake shoe expander
NOTE: RH shown, LH similar
16. Install the parking brake cable bolt to the rear wheel knuckle and tighten to 8 Nm (6 ft. lbs.)
17. Install the rear brake discs
18. Attach the parking brake emergency release cable and rear suspension spring air lines
^ Secure the 2 clips
^ Install the parking brake emergency release cable
19. Install the RH rear fender splash shield
^ Install the clip
^ Install the scrivet
^ Install the nut
^ Install the 4 screws
20. Install rear wheels and tires
CAUTION: Nuts and bolts must be tightened with the weight of the vehicle on the suspension
21. Tighten the rear shock absorber lower nuts and bolts to 110 Nm (81 ft. lbs.)
22. Connect the battery ground cable
23. Using the Land Rover approved diagnostic system, read, evaluate and clear any fault codes from the parking brake actuator memory
24. Using the Land Rover approved diagnostic system, calibrate the parking brake actuator on an even surface
25. Test the parking brake for proper operation