Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: General Information Front Brake Disc Runout Check (G2010035) / General Procedures

Land Rover Discovery (2009–2016) Service Manual / Chassis / Chassis-Brake-System / General Information Front Brake Disc Runout Check (G2010035) / General Procedures

SPECIAL TOOL(S)

SPECIAL TOOL(S)

CHECK

NOTES:

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

WARNING:

Make sure to support the vehicle with axle stands.

Raise the front of the vehicle.

Remove the road wheel.

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

CAUTION:

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

General information front brake disc runout check (G2010035) general procedures

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 front brake disc runout check (G2010035) general procedures

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

General information front brake disc runout check (G2010035) general procedures

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

Special Tool(s): 100-053

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

General information front brake disc runout check (G2010035) general procedures

Install spacer washers under the wheel nuts and tighten the wheel nuts to 133 Nm (98 lb.ft).

Zero the DTI and rotate the road wheel one complete revolution to measure the disc runout. The disc runout must not exceed 0.08 mm (0.003 in).

If the disc runout is outside of the limits: Refer to: Specifications (206-03 Front Disc Brake, Specifications).

Remove the wheel hub nuts and the spacers.

Remove Allen screw securing brake disc to drive flange.

Remove the brake disc.

Make sure mating surfaces of disc and drive flange are clean.

Fit the disc to the flange, fit the Allen screw and tighten to 35 Nm (26 lb.ft)..

Install spacer washers under the wheel nuts. Tighten the wheel nuts to 133 Nm (98 lb.ft).

Check the disc runout as detailed above.

Refer to: Specifications (206-03 Front Disc Brake, Specifications).

If runout is still outside limits, renew disc and/or hub.

Remove the wheel hub nuts and the spacer washers.

Remove the DTI.

General information front brake disc runout check (G2010035) general procedures

Install the brake caliper and tighten the bolts.

Torque:

Stage 1: 90 Nm

Stage 2: 120º

Install the road wheel.

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

Depress the brake pedal several times to set brake pads.

Lower the vehicle.

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