34 33 505 Removing and installing/replacing brake booster

Necessary Preliminary Tasks: 

• Read and comply with General Information. Refer to 34 00 ... GENERAL INFORMATION .
• Remove brake master cylinder. Refer to 34 31 500 REMOVING AND INSTALLING/REPLACING BRAKE MASTER CYLINDER 
• Remove center console. Refer to 51 16 392 REMOVING AND INSTALLING/REPLACING STORAGE COMPARTMENT IN INSTRUMENT PANEL TRIM (DRIVER'S SIDE) .
• Remove both windshield wiper arms. Refer to 61 61 081 REMOVING AND INSTALLING/REPLACING WINDSCREEN WIPER ARM .

After completing tasks, bleed brake system. Refer to 34 00 048 BLEEDING BRAKE SYSTEM WITH ABS/ASC+T  and 34 00 050 BLEEDING BRAKE SYSTEM WITH DSC .

Remove locking clip (1) and pull out pin (2). Release nuts (3).

Installation: 

Tightening torque, (21 +/- 3 N.m.).

Fig 1: Removing Locking Clip And Pin

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove coolant expansion tank.

Release nuts (2) and remove steering fluid reservoir.

Fig 2: Identifying Coolant Expansion Tank Retaining Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws (1).

Installation: 

Tightening torque, (19 N.m.).

Release nuts (2) and remove bracket.

Installation: 

Tightening torque, refer to 51 48 3AZ in BODY EQUIPMENT - TIGHTENING TORQUES - COOPER (1.6L) R50/W10 .

Fig 3: Removing Bracket

Courtesy of BMW OF NORTH AMERICA, INC.

Remove retaining clip (1).

Remove fuel line from retaining clip (2).

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

Fig 4: Locating Fuel Line Retaining Clip

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque, (14 N.m.).

Fig 5: Detaching Brake Lines From Hydraulic Unit To Brake Master Cylinder

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws (1). Release nut (2) and push complete wiper console to one side.

Installation: 

Tightening torque, refer to 61 61 2AZ in GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES - COOPER (1.6L) R50/W10 .

Disconnect negative lead (3).

Installation: 

Tightening torque, refer to 61 21 4AZ in GENERAL ELECTRICAL SYSTEM - TIGHTENING TORQUES - COOPER (1.6L) R50/W10 .

Fig 6: Removing Wiper Console

Courtesy of BMW OF NORTH AMERICA, INC.

Carefully pull brake booster out of bulkhead.

Swivel brake booster upwards and remove.

Fig 7: Removing Brake Booster

Courtesy of BMW OF NORTH AMERICA, INC.