Vacuum Brake Booster: Service and Repair

34 33 505 - Removing and installing/replacing brake booster





Necessary preliminary tasks:
- Read and comply with General Information Service and Repair.
- Remove brake master cylinder Removing and Installing/Replacing Brake Master Cylinder
- Remove center console 51 16 392 - Removing and installing/replacing storage compartment in instrument panel trim (driver's side)
- Remove both windshield wiper arms Service and Repair.

After completing tasks, bleed brake system.





Remove locking clip (1) and pull out pin (2).

Release nuts (3).

Installation:
Tightening torque 34 33 1AZ 34 33 Brake Booster.





Release nut (1) and remove coolant expansion tank.

Release nuts (2) and remove steering fluid reservoir.





Unfasten screws (1).

Installation:
Tightening torque 32 41 7AZ Pump and Oil Supply.

Release nuts (2) and remove bracket.

Installation:
Tightening torque 51 48 3AZ 51 48 Heat Shields.





Remove retaining clip (1).

Remove fuel line from retaining clip (2).

Remove engine compartment seal (3) and remove partition wall.





Detach brake lines (1) from hydraulic unit to brake master cylinder.

Tightening torque 34 32 1AZ 34 32 Brake Lines





Unfasten screws (1).

Release nut (2) and push complete wiper console to one side.

Installation:
Tightening torque 61 61 2AZ [1][2]Specifications.

Disconnect negative lead (3).

Installation:
Tightening torque 61 21 4AZ [1][2]Battery.





Carefully pull brake booster out of bulkhead.

Swivel brake booster upwards and remove.

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