Land Rover Discovery: Front Disc Brake Brake Disc (G1785104) / Removal and Installation
PART(S)

REMOVAL
WARNING:
If installing a new brake disc, install new brake pads.
CAUTION:
Brake discs must be renewed in pairs.
NOTE:
Left hand illustration shown, Right hand is similar.
WARNING:
Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
Refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and
Installation).
CAUTIONS:
- Do not allow the brake caliper to hang on the brake hose.
- Discard the bolts.

Tie aside.

INSTALLATION

Clean the brake disc using brake cleaning fluid.

Torque: 35 Nm
WARNING:
Do not use compressed air to clean brake components. Dust
from friction materials can be harmful if inhaled.

Clean the brake caliper housing and anchor plate using brake
cleaning fluid.
CAUTIONS:
- This step only applies to vehicles from VIN H995606 using
the M12 fixing.
- Make sure that the brake hose is not twisted and is
correctly located.
- Make sure that new bolts are installed.

Renew Part: Brake caliper carrier bolts.
Torque:
Stage 1: 90 Nm
Stage 2: 120º
Refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and
Installation).
Depress the brake pedal several times, check the fluid level in the
brake fluid reservoir and top-up with brake fluid if necessary.
READ NEXT:
REMOVAL
WARNING:
Brake pads must be renewed in axle sets only. Failure to follow this
instruction may result in braking efficiency being impaired.
NOTES:
Left illustration shown, right is similar.
NOTES:
Bleeding of the complete brake system must be carried out using
Land Rover approved diagnostic equipment. Where only the
primary or secondary brake circuits have been disturbed in
isolatio
BLEEDING
NOTE:
Some variation in the illustrations may occur, but the essential
information is always correct.
All vehicles
WARNING:
Make sure to support the vehicle with axle stands.
Raise and suppor
SEE MORE:
REMOVAL
CAUTION:
Make sure that the road wheels are in the straight ahead position.
NOTE:
Removal steps in this procedure may contain installation details.
Make the SRS system safe.
Refer to: Standard Workshop Practices (100-00 General
Information, Description and Operation).
Refer to: Steering Whe
OPERATION
Slow Wipe
When the driver moves the wipers and washers control switch to the slow
wipe position, the Central Junction Box (CJB) detects a Local Interconnect
Network (LIN) bus message and energizes the wiper on/off relay in the
Battery Junction Box (BJB). Power flows to the relay contacts o