BMW X5: Removing And Installing / Replacing Master Brake Cylinder For DSC
Special tools required:
- 32 1 27032 1 270 PLUGS (SET)
Necessary preliminary tasks:
- Remove expansion tank.
- Read and comply with General Information.
After completing tasks, bleed brake system with DSC.
IMPORTANT: Do not bend brake lines.
Unfasten brake lines (2).
Unclip retaining bar (1) and remove both brake lines from guides.
Installation:
Tightening torque 34 32 1AZ.
Close off brake lines and brake master cylinder with plugs 32 1 270.
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Fig. 65: Uncliping Retaining Bar
Release nuts (3) and feed brake master cylinder out of brake booster.
Installation:
Replace self-locking nuts.
Tightening torque 34 31 1AZ.
Installation:
Replace sealing ring.
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Fig. 66: Identifying Sealing Ring
Installation:
When inserting the brake master cylinder (2) into the brake booster (1), make
sure the pressure rod of the brake
booster and that of the brake master cylinder meet each other on one level.
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Fig. 67: Identifying Brake Master Cylinder And Brake Booster
READ NEXT:
OVERVIEW OF BRAKE LINES
1. Brake hose, front.
2. Brake tubes.
3. Brake hose, rear, to body.
4. Brake hose, rear, to wheel brake cylinder.
REPLACING ALL BRAKE PIPES
Special tools required:
34 5 100
REPLACING VACUUM HOSE FOR BRAKE BOOSTER (N52K)
IMPORTANT: Before beginning work, fully press the brake pedal several
times to reduce the
vacuum pressure in the brake booster. This makes it easier to
REPLACING A BRAKE PAD SENSOR (FRONT)
IMPORTANT: The brake pad wear sensor must be replaced once it has been
removed (brake pad wear sensor loses its retention capability in the brake pad).
If a brak
SEE MORE:
Special tools required:
64 1 300
WARNING: When handling cleaning agent, observe following protection
measures:
Wear protective rubber gloves and protective goggles.
If cleaning agent comes into contact with eyes or skin, wash immediately
with lots of water.
IMPORTANT: To avoid dirtying vehicle
IMPORTANT: Carry out chassis/wheel alignment with DIN load only:
If the technical preconditions for alignment with ride height
input are not
in place
If, in spite of repairs having been carried out, the car's ride
height between
the left and right sides is still outside the tolerance
If th