34 33 505 Removing and installing or replacing brake booster
WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. 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.
For tightening torque refer to 35 11 1AZ in 35 11 PEDAL ASSEMBLY CONSOLE .
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.
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.
The non-return valve must be modified when the brake booster is replaced.