34 11 519 Removing and installing/replacing left or right front brake caliper

Necessary preliminary tasks: 

• REMOVE WHEEL.
• Read and comply with GENERAL INFORMATION .

After completing repair work: BLEED BRAKE SYSTEM. 

Press brake pedal down to floor and secure with pedal support.

This prevents brake fluid from emerging from the expansion tank and air from entering the system when the brake lines are opened.

Fig 1: Locating Pedal Support

Courtesy of BMW OF NORTH AMERICA, INC.

Release retaining screw (1).

Installation note: 

Tightening torque 34 32 2AZ .

If necessary, grip at knurling (2).

If necessary, remove BRAKE PAD WEAR SENSOR .

Fig 2: Identifying Knurling And Retaining Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Lever out retaining spring (1) in direction of arrow towards rear.

Installation note: 

Place retaining spring (1) first at top and bottom of brake caliper and then allow to engage in recess (2) of brake caliper housing.

Fig 3: Placing Retaining Spring At Top And Bottom Of Brake Caliper

Courtesy of BMW OF NORTH AMERICA, INC.

Remove plastic plugs (1).

Fig 4: Identifying Plastic Plugs

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew guide bolts (1).

Withdraw brake caliper backwards.

Installation note: 

Only clean guide bolts; do not grease.

Check thread.

Replace all guide screws which are not in perfect condition.

Tightening torque 34 11 4AZ .

Fig 5: Identifying Brake Caliper Guide Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove brake pads in direction of arrow.

In the event of one-sided brake pad wear, do not change brake pads round.

If necessary, clean BRAKE CALIPER AND BRAKE PAD .

Fig 6: Removing Brake Pads

Courtesy of BMW OF NORTH AMERICA, INC.

Equipment specification, high-speed brake system. 

Remove brake pads in direction of arrow.

In the event of one-sided brake pad wear, do not change brake pads round.

If necessary, clean BRAKE CALIPER AND BRAKE PAD .

Fig 7: Removing Brake Pads

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary tasks: 

• REMOVE WHEEL
• Read and comply with GENERAL INFORMATION .

After completing work: BLEED BRAKING SYSTEM 

Press brake pedal down to floor and secure with pedal support.

This prevents brake fluid from emerging from the expansion tank and air from entering the system when the brake lines are opened.

Fig 1: Locating Pedal Support

Courtesy of BMW OF NORTH AMERICA, INC.

Release union screw (1).

Installation note: 

Tightening torque 34 32 2AZ .

If necessary, grip at knurling (2).

If necessary, remove BRAKE PAD WEAR SENSOR .

Fig 2: Identifying Knurling And Retaining Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Lever out retaining spring (1) in direction of arrow towards rear.

Installation note: 

Place retaining spring (1) first at top and bottom of brake caliper and then allow to engage in recess (2) of brake caliper housing.

Fig 3: Placing Retaining Spring At Top And Bottom Of Brake Caliper

Courtesy of BMW OF NORTH AMERICA, INC.

Remove plastic plugs (1).

Fig 4: Identifying Plastic Plugs

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew guide bolts (1).

Withdraw brake caliper backwards.

Installation note: 

Only clean guide bolts; do not grease.

Check threads.

Replace all guide screws which are not in perfect condition.

Tightening torque 34 11 4AZ .

Fig 5: Identifying Brake Caliper Guide Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove brake pads in direction of arrow.

In the event of one-sided brake pad wear, do not change brake pads round.

If necessary, clean BRAKE CALIPER AND PADS .

Fig 6: Removing Brake Pads

Courtesy of BMW OF NORTH AMERICA, INC.

Equipment specification, high-speed brake system. 

Remove brake pads in direction of arrow.

In the event of one-sided brake pad wear, do not change brake pads round.

If necessary, clean BRAKE CALIPER AND PADS .

Fig 7: Removing Brake Pads

Courtesy of BMW OF NORTH AMERICA, INC.