3433505 Removing and installing or replacing brake booster

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 335xi, and 2010 BMW 335i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks

Read and comply with GENERAL INFORMATION .
Remove BRAKE MASTER CYLINDER
Remove HYDRAULIC UNIT
Remove left FOOTWELL TRIM

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

Unscrew nuts (2).

Installation:

Replace self-locking nuts.

Tightening torque 35 11 1AZ .

Fig 1: Identifying Brake Pedal Locking Clip With Mounting Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

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 (1) out of bulkhead and tilt out.

If necessary, disengage brake line from holder on bulkhead and press slightly to one side.

Replacement

Modify NON-RETURN VALVE .

Fig 2: Pulling Brake Booster

Courtesy of BMW OF NORTH AMERICA, INC.