34 21 745 Removing and installing/replacing left or right rear brake caliper

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks:

Read and comply with GENERAL INFORMATION .
Remove rear left or right WHEEL .

NOTE: After completing tasks, BLEED BRAKE SYSTEM .

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

NOTE: The pedal support may only be released when the brake lines are reconnected.
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.

Detach locking clip (1) in direction of arrow.

Disengage parking brake Bowden cable (2) from actuating lever (3) at brake caliper.

Feed out parking brake Bowden cable (2) downwards.

Fig 2: Identifying Parking Brake Bowden Cable And Locking Clip

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Grip brake hose at square head (2) so that connecting piece cannot rotate in retaining bracket.

Disconnect brake hose from brake line (1).

Installation:

Tightening torque 34 32 1AZ

Fig 3: Identifying Square Head And Brake Line

Courtesy of BMW OF NORTH AMERICA, INC.

Disengage brake hose from holder (1).

Detach brake hose (2) from brake caliper.

Installation:

Tightening torque 34 32 3AZ

Fig 4: Identifying Holder And Brake Hose

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Never twist brake hose when installing it and avoid all contact with parts attached rigidly to the body.

NOTE: First tighten brake hose on brake caliper.
Insert brake hose in bracket and screw onto brake pipe.

Pull brake pad wear sensor out of brake pad (right side only).

Unscrew guide bolts (1).

If necessary, grip at hexagon head (2).

Remove brake caliper.

Installation:

Replace guide screws.

Tightening torque 34 21 3AZ

Fig 5: Identifying Guide Bolts And Hexagon Head

Courtesy of BMW OF NORTH AMERICA, INC.