34 11 000 Removing and installing/replacing brake linings on both front disc brakes

WARNING: This page is about a different car, the 2007 BMW 550i, 2006 BMW 550i, 2005 BMW 545i, and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For Special Tool identification, see BRAKES - SPECIAL TOOLS - 5-SERIES (E60) .

Special Tools Required:

34 1 080
34 1 280
34 6 320

Necessary Preliminary Tasks:

Remove wheels. Refer to 36 10 300 REMOVING OR INSTALLING FRONT OR REAR WHEEL .

Observe safety instructions on raising the vehicle. Refer to 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.

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: Locating Retaining Spring

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Remove plastic plugs (1).

Fig 2: View Of 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. Refer to 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, refer to 34 11 3AZ in BRAKES - TIGHTENING TORQUES - E60 .

Fig 3: Releasing Guide Screws With Special Tool

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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: Aligning Brake Linings With Special Tool
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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.

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).

Observe minimum brake disc thickness of brake linings. Refer to BRAKES - TECHNICAL DATA - E60 .

Clean brake linings.

Do not apply grease to brake pad backplate.

Fig 5: Locating Brake Linings

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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. Refer to BRAKES - TECHNICAL DATA - E60 .

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). Refer to BRAKES - TECHNICAL DATA - E60 .

Fig 6: Measuring Brake Disc Thickness

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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

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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: View Of Mounting Face Of Brake Caliper

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

Fig 9: Locating Mounting Face Of Brake Caliper

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

Fig 10: Identifying Brake Caliper Hammerhead Guides

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