34 11 000 Removing and installing/replacing brake pads on both front disc brakes (1 piston): Installation

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

Only clean guide screws; do not grease.

Check threads.

Replace all guide screws which are not in perfect condition.

Tightening torque 34 11 4AZ . See 34 11 FRONT BRAKE .

Fig 1: Identifying Guide Screws

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IMPORTANT: Mark any worn brake pads.

Remove outer brake pad (1) in direction of arrow.

Force inner brake pad (2) in direction of arrow off piston and remove.

The inner brake pad is seated with a spring in the piston or in the brake caliper housing.

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

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

Clean brake pads.

Fig 2: Identifying Outer And Inner Brake Pad

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Do not apply grease to brake pad backplate.

NOTE: When putting on the brake caliper, it is absolutely necessary to make sure that the brake pad T-head (1) of the outer brake pad is seated correctly on the contact surface (2).

IMPORTANT: With brake pads that are already partially worn, pay particular attention that the position of the outer brake pad in relation to the contact surface (2) is ensured!

Fig 3: Ensure Outer Brake Pad Is Seated Correctly On Contact Surface

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IMPORTANT: When forcing piston back:

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

Press back brake pads and piston with special tool 34 1 050 .

Fig 4: Pressing Back Brake Pads And Piston With Special Tool (34 1 050)

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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 . See BRAKES - TECHNICAL DATA .

Fig 5: Checking Minimum Brake Disc Thickness

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IMPORTANT: 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) (not incl. M vehicles).
In the case of M vehicles and perforated brake discs, new brake pads may only be installed if the brake disc thickness is greater than the minimum brake disc thickness (MIN TH). See BRAKES - TECHNICAL DATA .

NOTE: The minimum brake disc thickness is configured in such a way that it lasts the life of a further set of brake pads (does not apply to M vehicles and perforated brake discs).

Check dust sleeve (2) for damage and replace if necessary.

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

Clean contact surface (1) of brake piston with brake cleaner and apply a thin coating of brake pad paste .

Fig 6: Identifying Dust Sleeve

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Clean contact surfaces (1) and (2) with brake cleaner and apply a thin coating of brake pad paste .

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

Fig 7: Applying Thin Coating Of Brake Pad Paste

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So as not to damage the surface coating, if possible do not mechanically clean the guide surfaces for the brake pads on the brake caliper holder. Instead, clean with brake cleaner and apply a thin coating of Never Seez Compound brake pad paste.

Fig 8: Identifying Thin Coating Applying Area

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Clean contact surface (1) of brake caliper with brake cleaner and apply a thin coating of brake pad paste .

Fig 9: Identifying Contact Surface Of Brake Caliper

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So as not to damage the surface coating, if possible do not mechanically clean pad guides (1). Instead, clean with brake cleaner and apply a thin coating of Never Seez Compound brake pad paste.

Fig 10: Identifying Pad Guides

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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 pads, reset CBS display in accordance with factory specification.