34 11 000 Removing And Installing/Replacing Brake Linings On Both Front Disc Brakes

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

34 1 080
34 1 280
34 6 320

Necessary preliminary tasks:

Remove wheels

Observe safety instructions on raising the vehicle. See 00 ... ... LIFTING VEHICLE WITH A LIFTING PLATFORM .

If necessary, when replacing linings, reset CBS display in accordance with factory specification.

NOTE: After completing work:

Fully depress brake pedal several times so that brake linings contact brake discs.
When installing new brake linings 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 . See 34 00 ... GENERAL INFORMATION ON BRAKING IN NEW BRAKE DISCS / BRAKE PADS .

IMPORTANT: On the E60 M5 and E63 M6 the fault memory entry "Mastervac vacuum pressure sensor" may be stored after the brake linings have been replaced.
The fault memory entry must be deleted. The vacuum pressure sensor only has to be replaced if the fault is entered repeatedly.

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

Installation:

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

Fig 1: Identifying Retaining Spring And Retaining Lug

Courtesy of BMW OF NORTH AMERICA, INC.

Remove plastic plugs (1).

Fig 2: Identifying Plastic Plugs

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Left:

Pull brake lining wear sensor (1) towards rear out of lining.

If necessary, replace brake lining wear sensor . See 34 35 001 REPLACING A BRAKE LINING SENSOR .

Release guide screws (2) with special tool 34 1 080 . Withdraw brake caliper backwards.

Installation:

Only clean guide screws; do not grease.

Check threads.

Replace all guide screws which are not in perfect condition.

Tightening torque. See BRAKES - TIGHTENING TORQUES -- ALPINA .

Fig 3: Identifying Brake Lining Wear Sensor And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Press back brake linings and piston with special tool 34 6 320 .

IMPORTANT: When forcing piston back:

Pay attention to brake fluid level in expansion tank; brake fluid that spills over will damage paintwork.

Fig 4: Identifying Special Tool (34 6 320)
Courtesy of BMW OF NORTH AMERICA, INC.

Press brake linings inwards and remove.

The two brake linings are seated with a spring in the piston or in the brake caliper housing and must not be mixed up.

IMPORTANT: Mark any worn brake linings.

In the event of one-sided brake lining wear, do not change brake linings round.

Observe minimum thickness of brake linings . See BRAKES - TECHNICAL DATA .

Clean brake linings.

Do not apply grease to brake pad backplate.

Fig 5: Pressing Brake Linings Inwards

Courtesy of BMW OF NORTH AMERICA, INC.

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 . See BRAKES - TECHNICAL DATA .

New brake linings may only be installed if the brake disc thickness is greater than or equal to the minimum brake disc thickness (MIN TH) . See BRAKES - TECHNICAL DATA .

Fig 6: Checking Minimum Brake Disc Thickness Using Special Tool (34 1 280)

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

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

Fig 7: Identifying Dust Sleeve And Contact Face Of Brake Piston

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

NOTE: Grease contact surfaces on brake caliper at top and bottom.

Fig 8: Identifying Mounting Faces Of Brake Lining Hammer Heads/Brake Caliper Housing

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 9: Identifying Mounting Face Of Brake Caliper

Courtesy of BMW OF NORTH AMERICA, INC.

Clean brake caliper holder at hammerhead guides and apply a thin coating of anti-squeak compound.

refer to BRAKES - OPERATING FLUIDS .

Fig 10: Locating Brake Caliper Holder At Hammerhead Guides

Courtesy of BMW OF NORTH AMERICA, INC.