34 33 000 Removing and installing or replacing brake booster

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks:

Remove BRAKE MASTER CYLINDER
Remove left FOOTWELL TRIM .

Detach locking clip (1) from brake pedal, disengage and pull out locking pin.

Unscrew nuts (2).

Installation note:

Replace self-locking nuts.

Tightening torque 34 33 1AZ

Fig 1: Identifying Clip And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Pull non-return valve (1) in direction of arrow out of brake booster.

Unclip brake lines from holder (2).

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 in upward direction.

Fig 2: Identifying Non-Return Valve, Holder And Brake Booster

Courtesy of BMW OF NORTH AMERICA, INC.