Necessary preliminary tasks:
After completing repair work: BLEED BRAKING SYSTEM.
Press brake pedal down to floor and secure with pedal support.
NOTE: The pedal support may only be released when the brake lines are reconnected.
This prevents brake fluid from emerging from the expansion tank and air from entering the system when the brake lines are opened.
Detach brake hose (1) from brake caliper.
If necessary, grip at knurling (2).
Release retaining screw (1). If necessary, grip at square head.
Installation note: Position guides (3) correctly in holder (4).
Release brake hose from holders (1).
Unscrew holder (2).
IMPORTANT: Observe assembly sequence:
- Fasten brake hose in holders (1).
- Move wheels into straight-ahead position.
- Fasten brake hose at pipe/brake hose connection.
- Fasten brake hose at brake caliper.
Never twist brake hose when installing it and avoid all contact with parts attached rigidly to the body.
BMW X3 Service & Repair Manual > Brake booster: Replacing vacuum hose for brake booster (petrol)
Necessary preliminary tasks:
Read and comply with GENERAL INFORMATION.
Remove left TRAILING LINK .
REMOVE left partition wall for units compartment.
IMPORTANT:
Before beginning repair work, fully press the brake pedal several times to reduce the vacuum
pressure in the brake servo.
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