34 21 200 Removing and installing or replacing brake pads on both rear disc brakes (Teves floating caliper)

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
Remove brake pad wear sensor

Lift out retaining spring (1).

Fig 1: Retaining Spring And Removal Directions

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Remove cover plug (1).

Fig 2: Cover Plug

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IMPORTANT: Tie brake caliper back and do not allow to hang from brake hose.

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 3: Brake Caliper And Bolts

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Remove outer brake pad.

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

IMPORTANT: Mark any worn brake pads.

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

Clean brake pads.

Do not grease backs of brake pads sleeve.

Fig 4: Outer Brake Pad And Removal Directions

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IMPORTANT: When pressing down piston, note brake fluid level in expansion tank.

Overflowing brake fluid will damage the paintwork.

Turn piston fully back with special tool 34 1 050 .

Fig 5: Special Tool (34 1 050) And Installation Directions

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Check minimum brake disc thickness:

Position special tool 34 1 280 at three measuring points in area (1) and measure.
Compare measurement result and lowest value with setpoint value.

New brake pads may only be installed if the brake disc thickness is greater than or equal to the minimum brake disc thickness (MIN TH).

Fig 6: Set Points And Special Tool (34 1 280)

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Check dust sleeve (1) for damage and replace if necessary.

IMPORTANT: Dust sleeve must not come into contact with anti-squeak compound as this may cause the dust sleeve to swell.

Clean contact face (2) of brake piston and apply a thin coating of anti-squeak compound.

Fig 7: Dust Sleeve And Brake Piston Contact Face

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Clean contact faces (1...2) of brake pad hammer heads/brake caliper housing and coat with anti-squeak compound.

Fig 8: Brake Pad Hammer Contact Faces

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Clean contact face (3) of brake caliper and apply a thin coating of anti-squeak compound.

Fig 9: Brake Caliper Contact Face

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Clean brake caliper mounting bracket at hammer head guides and apply a thin coating of anti-squeak compound.

Fig 10: Hammerhead Guides Brake Console

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NOTE: After completing work:

Fully depress brake pedal several times so that brake pads contact brake discs.
When installing new brake pads at front and rear axles, brake fluid level must be brought up to "MAX" marking.
Read and comply with notes on braking in new brake discs / brake pads.
When replacing linings, reset CBS display in accordance with factory specification.