Land Rover Discovery: Hydraulic Brake Actuation Brake Master Cylinder (G1785122) / Removal and
Installation
PART(S)
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REMOVAL
CAUTION:
If brake fluid is spilt on the paintwork, the affected area must be
immediately washed down with cold water.
NOTE:
Removal steps in this procedure may contain installation details.
All vehicles
WARNING:
Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
Refer to: Brake Fluid Reservoir (206-06 Hydraulic Brake Actuation,
Removal and Installation).
WARNING:
Fluid loss is unavoidable, use absorbent cloth or a container
to collect the fluid.
CAUTION:
Make sure that all openings are sealed. Use new blanking
caps.
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Torque: 17 Nm
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Right-hand drive vehicles
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Torque: 10 Nm
All vehicles
CAUTION:
Discard the seal.
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Renew Part: Brake master cylinder seal.
Torque: 25 Nm
INSTALLATION
CAUTION:
A new O-ring seal is to be installed.
To install, reverse the removal procedure.
Refer to: Brake System Bleeding (206-00 Brake System - General
Information, General Procedures).
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REMOVAL
NOTES:
This procedure contains some variation in the illustrations
depending on the vehicle specification, but the essential
information is always correct.
This procedure contains illustr
COMPONENT LOCATION
NOTE:
Right Hand Drive (RHD) illustration shown, Left Hand Drive (LHD)
illustration similar.
Brake pedal
Hydraulic pipes
Integrated Hydraulic Control Unit (HCU) and Anti-lock
Brake fluid reservoir cap
Brake fluid level switch
Brake fluid reservoir
Secondary circuit inlet port
Primary circuit inlet port
Brake master cylinder
Secondary circuit outlet port
Primary
SEE MORE:
REMOVAL
NOTE:
Removal steps in this procedure may contain installation details.
Refer to: Engine Cover - INGENIUM I4 2.0L Diesel (501-05 Interior
Trim and Ornamentation, Removal and Installation).
INSTALLATION
CAUTIONS:
During the installation, make sure that all components are
clean and free
Operation
When the park brake is applied with the EPB switch, the ABS control
module uses the wheel speed inputs to determine when to use the static
and dynamic modes of operation. It uses the static mode at vehicle speeds
up to 3km/h (2mph) and the dynamic mode at vehicle speeds greater than
3km/h