Rear Disc Brake Land Rover Range Rover L322

SPECIFICATIONS

TORQUE SPECIFICATIONS

*New bolts must be installed

COMPONENT LOCATION

GENERAL

The rear brakes on all models feature ventilated brake discs, with different diameter brake discs dependant on variant. The brakes feature single piston sliding calipers, vehicles with standard brakes are fitted with 354 mm discs. Vehicle with high performance brakes are fitted with 365 mm diameter discs. The parking brake are common on all models.

The brake caliper is attached to the rear of the rear knuckle. The brake pads are made from an asbestos free material. The inboard brake pad of the right rear brake incorporates a wear sensor.

When hydraulic pressure is supplied to the caliper, the piston extends and forces the inner pad against the disc. The caliper body reacts and slides on the guide pins to bring the outer pad into contact with the disc.

The rear brake pad wear sensor is connected in series with the front brake pad wear sensor, between the instrument cluster and ground. When a brake pad incorporating a brake pad wear sensor is approximately 75% worn, the brake pad wear sensor goes open circuit. When the instrument cluster detects the open circuit, it illuminates the brake warning indicator, displays an appropriate warning in the message center and sounds a warning chime. For additional information, refer to Instrument Cluster .

At the beginning of each ignition cycle, the instrument cluster performs a bulb check on the brake warning indicator: the indicator is illuminated amber for 1.5 seconds, then red for 1.5 seconds.

For additional information, refer to Brake System .

REMOVAL

Note. If the parking brake shoes or the brake discs have been removed for access to other components then DO NOT carry out the bedding in procedure.

Note. The brake pad wear warning indicator sensor must be replaced each time the brake pads are serviced.

Note. RH graphic shown, LH is similar.

Scheme 19

Scheme 20

Scheme 21

Scheme 22

1. Using the Land Rover approved diagnostic system, drive the parking brake to the 'mounting position'.
2. Disconnect the battery ground cable. For additional information, refer to «Specifications»(/land-rover/range-rover/l322-2009-2012/remont/charging-system/#battery-and-charging-system-general-information) .
3. Raise and support the vehicle. WARNING: Make sure to support the vehicle with axle stands.
4. Remove the rear wheels and tires.
5. RH side rear: Disconnect the brake pad wear indicator sensor wiring harness. CAUTION: The brake pad wear indicator sensor is easily damaged. Do not use a lever to remove the sensor. Use fingers only.
6. Remove the brake caliper lower bolt. NOTE: Use an additional wrench to prevent the component from rotating.
7. Remove the brake pads. Rotate the brake caliper upwards. Remove the 2 clips. NOTE: Note the orientation of the brake pads.
8. Remove the brake caliper anchor bolts. Release the brake caliper. Tie the brake caliper aside. CAUTION: Do not allow the brake caliper to hang on the brake hose.
9. Release the parking brake shoe adjustment. Remove the parking brake shoe adjuster access plugs. Rotate the parking brake shoe adjuster. NOTE: Rotate the rear brake disc to locate the parking brake shoe adjuster.
10. Remove the rear brake disc. Remove the Allen screw.

INSTALLATION

1. Make sure that the rear brake disc and hub mating surfaces are clean.
2. Install the rear brake disc. Tighten the Allen screw to 16 Nm (12 lb.ft).
3. Install the brake caliper anchor bolts Clean the component mating faces. Tighten the bolts to 65 Nm (48 lb.ft). plus a further 90 degrees.
4. Clean the brake caliper housing and anchor plate using brake cleaning fluid. WARNING: Do not use compressed air to clean brake components. Dust from friction materials can be harmful if inhaled.
5. Inspect the caliper piston and slide pin seals for damage.
6. Check the slide pins for correct operation. CAUTION: The brake caliper should move freely on both slide pins. CAUTION: If necessary, renew the components.
7. Press the piston into the caliper housing. CAUTION: Check the brake fluid reservoir level before pushing the piston back, failure to follow this instruction may result in damage to the vehicle. NOTE: As the piston is pushed back into the caliper housing, the brake fluid level in the reservoir will rise. Do not allow the reservoir to overflow.
8. If installed, remove the adhesive strips from the 2 outer brake pads. CAUTION: If installed, the adhesive strips covering the outer brake pads must be removed before installation. Failure to follow this instruction may result in damage to the vehicle.
9. Install the brake pads. Install the 2 clips. NOTE: Make sure the brake pads are installed in the correct orientation.
10. Rotate the brake caliper downwards. Tighten the bolt to 32 Nm (24 lb.ft).
11. RH side rear: Connect the brake pad wear indicator sensor wiring harness.
12. Adjust the parking brake. For additional information, refer to «Parking Brake Shoe and Lining Adjustment»(/land-rover/range-rover/l322-2009-2012/remont/brakes-control-systems/#parking-brake-and-actuation) .
13. Install the wheels and tires. Stage 1: 4 Nm Stage 2: 70 Nm Stage 3: 140 Nm
14. Connect the battery ground cable. For additional information, refer to «Specifications»(/land-rover/range-rover/l322-2009-2012/remont/charging-system/#battery-and-charging-system-general-information) .

Note. RH graphic shown, LH is similar.

Note. The brake pad wear warning indicator sensor must be replaced each time the brake pads are serviced.

Scheme 23

1. Raise and support the vehicle. WARNING: Make sure to support the vehicle with axle stands.
2. Remove the wheels and tires.
3. RH side rear: Disconnect the brake pad wear indicator sensor wiring harness.
4. RH side rear: Move the fender splash shield aside for access.
5. Release the antilock brake system (ABS) junction box cover.
6. RH side rear: Release and disconnect the brake pad wear indicator wiring harness.
7. Remove the brake caliper lower bolt. NOTE: Use an additional wrench to prevent the component from rotating.
8. Remove the brake pads. Rotate the brake caliper upwards. Remove the 2 clips. NOTE: Note the fitted position.
9. Repeat the above 2 steps for the other side.

1. Clean the brake caliper housing and anchor plate using brake cleaning fluid. WARNING: Do not use compressed air to clean brake components. Dust from friction materials can be harmful if inhaled.
2. Inspect the caliper piston and slide pin seals for damage.
3. Check the slide pins for correct operation. CAUTION: The brake caliper should move freely on both slide pins. CAUTION: If necessary, renew the components.
4. Press the piston into the caliper housing. CAUTION: Check the brake fluid reservoir level before pushing the piston back, failure to follow this instruction may result in damage to the vehicle. NOTE: As the piston is pushed back into the caliper housing, the brake fluid level in the reservoir will rise. Do not allow the reservoir to overflow.
5. If installed, remove the adhesive strips from the 2 outer brake pads. CAUTION: If installed, the adhesive strips covering the outer brake pads must be removed before installation. Failure to follow this instruction may result in damage to the vehicle.
6. Install the brake pads. Install the 2 clips.
7. Rotate the brake caliper downwards. Tighten the bolt to 32 Nm (24 lb.ft).
8. Repeat the above procedure for the other side.
9. RH side rear: Connect and attach the brake pad wear indicator wiring harness electrical connection.
10. Secure the ABS junction box cover.
11. Secure the fender splash shield.
12. RH side rear: Connect the brake pad wear indicator sensor wiring harness.
13. Install the wheels and tires. Stage 1: 4 Nm Stage 2: 70 Nm Stage 3: 140 Nm NOTE: Tighten the wheel nuts in the sequence shown
14. Depress the brake pedal several times, check the fluid level in the brake fluid reservoir and top-up with brake fluid if necessary.

Note. Some variation in the graphics may occur, but the essential information is always correct.

Note. RH graphic shown, LH is similar.

Scheme 24

1. Raise and support the vehicle. WARNING: Make sure to support the vehicle with axle stands.
2. Remove the wheel and tire.
3. RH side only: Disconnect the brake pad wear indicator sensor. Release from the clip. CAUTION: The brake pad wear indicator sensor is easily damaged. Do not use a lever to remove the sensor. Use fingers only.
4. Remove the brake caliper lower bolt. NOTE: Use an additional wrench to prevent the component from rotating.
5. Disconnect the brake hose from the brake caliper. CAUTION: Before disconnecting or removing components, ensure the area around the joint faces and connections are clean. Plug open connections to prevent contamination. Remove the union. Remove and discard the two sealing washers. Install blanking caps to the exposed ports.
6. Remove the brake pads. Rotate the brake caliper upwards. Remove the two clips.
7. Remove the brake caliper housing. Remove the brake caliper upper bolt. NOTE: Use an additional wrench to prevent the component from rotating.

1. Clean the brake caliper housing and anchor plate using brake cleaning fluid. WARNING: Do not use compressed air to clean brake components. Dust from friction materials can be harmful if inhaled.
2. Check the caliper slide pins. Check for correct operation. Check the condition of the caliper slide pin seals. CAUTION: The brake caliper should move freely on both slide pins. CAUTION: If necessary, renew the components.
3. Install the brake caliper. Tighten the brake caliper upper bolt to 35 Nm (26 lb.ft). NOTE: Use an additional wrench to prevent the component from rotating.
4. Install the brake pads. Install the two clips.
5. Secure the brake caliper. Rotate the brake caliper downwards. Tighten the brake caliper lower bolt to 35 Nm (26 lb.ft). NOTE: Use an additional wrench to prevent the component from rotating.
6. Connect the brake hose to the brake caliper. Clean the component mating faces. Remove the blanking caps from the ports. Install new sealing washers. Tighten the brake hose union to 32 Nm (24 lb.ft).
7. Connect the brake pad wear indicator sensor.
8. Bleed the brake system. For additional information, refer to «Component Bleeding - Vehicles With: Standard Brakes»(/land-rover/range-rover/l322-2009-2012/remont/brakes/#brake-system-general-information__component-bleeding) .
9. Install the wheel and tire. Tighten the wheel nuts to 140 Nm (103 lb.ft).

See also:
• Instrument Cluster
• Brake System
• Specifications
• Parking Brake Shoe and Lining Adjustment
• Component Bleeding - Vehicles With: Standard Brakes