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 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary work:
- Read and comply with GENERAL INFORMATION .
- Remove rear left DOME CROSS-BRACE .
- Remove left FOOTWELL TRIM
- In vehicles with coolant expansion tank in the front left side panel: Remove COOLANT FILLER NECK .
After completing repair work, bleed BRAKE SYSTEM WITH DSC .
Extract brake fluid out of expansion tank.
Unfasten brake lines (1).
Installation note:
Tightening torque 34 32 1AZ .
Disconnect vacuum line (2).
Installation note:
Check gasket (3), replace if necessary.
Detach retaining clip (1) on brake pedal.
Pull out locking pin.
Unscrew nuts (2).
Installation note:
Replace self-locking nuts.
Tightening torque 35 11 1AZ .
IMPORTANT:
Do not use any force when removing and installing the brake booster; the brake booster can be damaged under certain circumstances.
Brake lines must not be bent.
Brake lines must not be bent.
Carefully pull brake booster (1) out of bulkhead and tilt out.
Installation note:
Make sure seal (2) is present and correctly seated.
Replacement
Modify TANDEM BRAKE MASTER CYLINDER .
F04 only
The following service function must be performed after completing the repair work:
- Calibrate brake pedal travel sensor.