Parking Brake Actuator: Service and Repair

Parking Brake Actuator

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 the ingress of foreign matter. Failure to follow this instruction may result damage to the components.

NOTE:
It is not necessary to carry out the parking brake shoe '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. For additional information, refer to Air Suspension System Depressurize and Pressurize Service and Repair
4 Disconnect the battery ground cable. For additional information, refer to Procedures
5
WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.
Raise and support the vehicle.
6 Remove the rear wheels and tires. For additional information, refer to Wheel and Tire Service and Repair




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 antenna electrical connector.




8
NOTE:
Note the routing of the parking brake emergency release cable.
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. For additional information, refer to Brake Disc





10
NOTE:
Right-hand shown, left-hand similar.
Remove the parking brake cable bolt from the rear wheel knuckle.

11
NOTE:
Left-hand shown, right-hand similar.
Release the parking brake cables.
1) Pull the parking brake cable sleeve away from the parking brake shoe expander.
2) Pull the parking brake cable towards the parking brake shoe expander.
3) Release the parking brake cable from the parking brake shoe expander.

12 Remove the exhaust system. For additional information, refer to Exhaust System
For additional information, refer to Exhaust System
For additional information, refer to Exhaust System - Vehicles Without: Diesel Particulate Filter (DPF)
For additional information, refer to Exhaust System - Vehicles With: Diesel Particulate Filter (DPF)





13 Remove the fuel tank heat shield.
- Remove the 8 screws.





14
NOTE:
Left-hand shown, right-hand similar.
Release the rear air spring from the lower suspension arm.
- Remove the screw.





15
NOTE:
Left-hand shown, right-hand similar.
Release the rear shock absorber from the lower suspension arm.
- Remove the bolt and discard the nut.





16
NOTE:
Right-hand shown, left-hand similar.
Disconnect both rear suspension height sensor electrical connectors.

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 inches).





20
NOTE:
Note the routing of the parking brake emergency release cable.
Release the parking brake emergency release cable and rear suspension spring air lines.
- Release from the 2 clips.





21 Disconnect the differential case breather line.





22 Lower the rear subframe to a maximum of 40 mm (1.57 inches).
- Collect the spacers from the mountings.





23
NOTE:
Right-hand shown, left-hand similar.
Release the parking brake cable clip from the upper suspension arm.
- Remove the bolt.





24
NOTE:
Right-hand shown, left-hand similar.
Release the parking brake cable from the rear subframe clip.





25 Remove the 2 parking brake actuator bolts.





26
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.
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 and cable assembly.
- Attach the 2 front rubber mounts.
2
CAUTION: Do not touch the electrical connections.
Connect the parking brake actuator electrical connector.
3 Install the parking brake actuator bolts and tighten to 9 Nm (7 lb.ft)
4
NOTE:
Right-hand shown, left-hand similar.
Install the parking brake cable to the rear subframe clip.
5
NOTE:
Right-hand shown, left-hand similar.
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.
9
CAUTION: Make sure that the spacers are correctly located to the bushes prior to tightening.
Install the 4 rear subframe mounting bolts and tighten to 165 Nm (122 lb.ft)

10 Connect both rear suspension height sensor electrical connectors.

11
NOTE:
Left-hand shown, right-hand similar.
Attach the rear shock absorber to the lower suspension arm.
- Install the screw, but do not fully tighten at this stage.

12
NOTE:
Left-hand shown, right-hand similar.
Attach the rear air spring to the suspension lower arm.
- Tighten the screw to 7 Nm. (5 lb.ft).

13 Install the fuel tank heat shield.
- Install the 8 screws.

14 Install the exhaust system. For additional information, refer to Exhaust System
For additional information, refer to Exhaust System
For additional information, refer to Exhaust System - Vehicles Without: Diesel Particulate Filter (DPF)
For additional information, refer to Exhaust System - Vehicles With: Diesel Particulate Filter (DPF)





15
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.
Attach the parking brake cables.
- Push the parking brake cable through the wheel knuckle into the parking brake shoe expander.

16
NOTE:
Right-hand shown, left-hand similar.
Install the parking brake cable bolt to the rear wheel knuckle and tighten to 8 Nm (6 lb.ft).

17 Install the rear brake discs. For additional information, refer to Brake Disc

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 the rear wheels and tires. For additional information, refer to Wheel and Tire Service and Repair

21
CAUTION: Nuts and bolts must be tightened with the weight of the vehicle on the suspension.
Tighten the rear shock absorber lower nuts and bolts to 110 Nm (81 lb.ft).

22 Connect the battery ground cable. For additional information, refer to Procedures

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 correct operation.