Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: General Information Rear Brake Disc Runout Check (G2010036) / General Procedures

Land Rover Discovery (2009–2016) Service Manual / Chassis / Chassis-Brake-System / General Information Rear Brake Disc Runout Check (G2010036) / General Procedures

SPECIAL TOOL(S)

SPECIAL TOOL(S)

CHECK

NOTES:

  • Some variation in the illustrations may occur, but the essential information is always correct.
  • Right shown, left is similar.
  • 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.

CAUTION:

Do not turn the ignition on when the parking brake service mode has been set, this will result in the parking brake being released from the service mode.

  1. Activate the service mode function of the Electronic Parking Brake (EPB).
  2. Disconnect the battery ground cable.

    Refer to: Battery (414-01 Battery, Mounting and Cables, Removal and Installation).

WARNING:

Make sure to support the vehicle with axle stands.

  1. Raise the rear of vehicle.
  2. Remove the road wheel.

    Refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

CAUTION:

The brake pad wear indicator sensor is easily damaged. Do not use a lever to remove the sensor. Use fingers only.

General information rear brake disc runout check (G2010036) general procedures

  1. Disconnect the brake pad wear indicator sensor electrical connector.

CAUTION:

Do not allow the brake caliper to hang on the brake hose.

General information rear brake disc runout check (G2010036) general procedures

  1. Release the brake caliper and tie aside.

CAUTION:

Brake discs must be renewed in pairs, unless one disc requires changing before 1000 miles (1600 kilometers) from new.

General information rear brake disc runout check (G2010036) general procedures

  1. At four points around the disc, measure the disc thickness using a micrometer, renew the disc if less than the service limit or if the variation is exceeded.

General information rear brake disc runout check (G2010036) general procedures

  1. Mount and secure the Dial Test Indicator (DTI) to the inboard side of the hub using the caliper assembly upper molt hole.

Special Tool(s): 100-053

  1. Position DTI probe 5 mm in from outer edge of disc.

General information rear brake disc runout check (G2010036) general procedures

  1. Install spacer washers under the wheel nuts and tighten the wheel nuts to 133 Nm (98lb.ft).
  2. Zero the DTI and rotate the road wheel one complete revolution to measure the disc runout. The disc runout must not exceed 0.09 mm (0.004).
  3. If the disc runout is outside of the limits: Refer to: Specifications (206-04 Rear Disc Brake, Specifications).
  4. Remove the wheel hub nuts and the spacers.
  5. Remove the Allen screw securing the brake disc to the drive flange.
  6. Remove the brake disc.
  7. Make sure the mating faces of the disc and the drive flange are clean.
  8. Fit the disc to the flange, fit the Allen screw and tighten to 35 Nm (26 lb.ft).
  9. Install spacer washers under the wheel nuts. Tighten the wheel nuts to 133 Nm (98lb.ft).
  10. Check the disc runout as detailed above.

    Refer to: Specifications (206-04 Rear Disc Brake, Specifications).

  11. If runout is still outside the limits, renew the disc and/or hub.
  12. Remove the wheel hub nuts and the spacer washers.
  13. Remove the DTI.

General information rear brake disc runout check (G2010036) general procedures

  1. Install the brake caliper and tighten the bolts.

    Torque: 110 Nm

  2. Reconnect the battery ground cable.

    Refer to: Battery (414-01 Battery, Mounting and Cables, Removal and Installation).

  3. Deactivate the service mode function of the EPB.
  4. Install the road wheel.

    Refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

  5. Depress the brake pedal several times to set the brake pads.
  6. Remove the stands and lower vehicle.

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