34 21 745 Removing and installing or replacing rear left or right brake caliper (TRW)

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove wheels
Read and comply with General Information

After completing work: Bleed braking 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: Clutch Pedal And Pedal Support

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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:

For tightening torque refer to 34 32 1AZ in 34 32 BRAKE LINES .

Detach brake hose from brake caliper (3).

Installation:

For tightening torque refer to 34 32 3AZ in 34 32 BRAKE LINES .

Fig 2: Square Head, Brake Line And Brake Caliper

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 towards rear out of lining (right side only).

If necessary, replace brake pad wear sensor.

Unscrew guide bolts (1).

If necessary, grip at hexagon head (2).

Remove brake caliper by pulling forward.

Installation:

Replace guide screws.

For tightening torque refer to 34 21 5AZ in 34 21 REAR BRAKE .

Fig 3: Guide Bolts And Hexagon Head

Courtesy of BMW OF NORTH AMERICA, INC.