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

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.

IMPORTANT: The brake pad wear sensor must be replaced once it has been removed (brake pad wear sensor loses its retention capability in the brake pad).

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

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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.

Lift out retaining spring (1).

Fig 3: Retaining Spring And Removal Direction

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Remove cover plug (1).

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

If necessary, replace brake pad wear sensor.

Fig 4: Cover Plug

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Unscrew guide bolts (1).

Remove brake caliper (2) by pulling forward.

Installation:

For tightening torque refer to 34 21 4AZ in 34 21 REAR BRAKE .

Clean guide screws only; do not grease.

Check threads.

Replace all guide screws which are not in perfect condition.

Fig 5: Brake Caliper And Guide Bolts

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IMPORTANT: Mark any worn brake pads.

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

Remove outer brake pad.

Inner brake pad is located with its spring in the piston.

Clean brake pads.

Do not grease backs of brake pads sleeve.

Fig 6: Outer Brake Pad And Removal Direction

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