Land Rover Discovery: Hydraulic Brake Actuation Brake Master Cylinder (G1785122) / Removal and
Installation
PART(S)
![Hydraulic brake actuation brake master cylinder (G1785122) removal and installation](images/books/227/index25(2).jpg)
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.
![Hydraulic brake actuation brake master cylinder (G1785122) removal and installation](images/books/227/index26(2).jpg)
Torque: 17 Nm
![Hydraulic brake actuation brake master cylinder (G1785122) removal and installation](images/books/227/index27(2).jpg)
Right-hand drive vehicles
![Hydraulic brake actuation brake master cylinder (G1785122) removal and installation](images/books/227/index28(2).jpg)
Torque: 10 Nm
All vehicles
CAUTION:
Discard the seal.
![Hydraulic brake actuation brake master cylinder (G1785122) removal and installation](images/books/227/index29(2).jpg)
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).
READ NEXT:
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:
AUTOMATIC DIMMING REAR VIEW MIRROR
Power for the feature(s) in the automatic dimming rear view mirror is
provided in power mode 6 (ignition).
Automatic Dimming
The light sensor in the front of the mirror monitors ambient light at the
front
of the vehicle and the light sensor in the rear of the mirr
Most modern vehicles are constructed from a number of different steels,
partly to obtain an optimized body, (collision, safety, rigidity, fuel economy,
etc.).
Steels are divided into several groups according to their tensile and yield
strength, that is to say the force necessary to bring about plas