BMW X3 Service & Repair Manual: Removing and installing or replacing brake booster

BMW X3 Service & Repair Manual / Brakes / Brake booster / Removing and installing or replacing brake booster

Necessary preliminary work:

Read and comply with GENERAL INFORMATION.
Remove left footwell trim .
Remove BRAKE MASTER CYLINDER.
Remove WIPER MOUNTING BRACKET .

Detach retaining clip (1) on brake pedal.

Pull out locking pin.

Unscrew nuts (2).

Installation note: Replace self-locking nuts.

Brakes

Release brake lines (1) from holder on bulkhead.

If necessary disconnect plug connection of vacuum sensor.

Pull vacuum line (2) out of brake booster.

Installation note: Check gasket, replace if necessary.

IMPORTANT: Do not use any force when removing and installing the brake unit; the brake unit can be damaged under certain circumstances.

Brake lines must not be bent.

Carefully pull brake booster (3) out of bulkhead and tilt out.

Brakes

Installation note:

Make sure seal (2) is present and correctly seated.

The protective film on the connection of the vacuum line must be removed when replacing the brake booster!

Brakes

Removing and installing brake booster vacuum pressure sensor

Detach service opening (1). Disconnect plug connection (1) at vacuum sensor. Carefully remove vacuum sensor (2) from brake booster in direction ...

Replacing vacuum hose for brake booster (N63)

IMPORTANT: Before beginning work, fully press the brake pedal several times to reduce the vacuum pressure in the brake servo. This makes it eas ...

Other materials:

BMW X3 Owners Manual > Storage compartments: Vehicle features and options
This chapter describes all standard, country-specific and optional features offered with the series. It also describes features that are not necessarily available in your car, e. g., due to the selected options or country versions. This also applies to safety-related functions and systems. The ...