34 11 552 Overhauling left or right front brake caliper (brake caliper removed)

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.

Special tools required:

00 9 316

See BRAKES - SPECIAL TOOLS .

WARNING: In the following work step, large forces occur at the brake caliper piston (up to more than
2800 N).
Risk of injury!

Check guide sleeves (5), fitting repair-kit guide sleeve if necessary.

Fig 1: Identifying Guide Sleeves

Courtesy of BMW OF NORTH AMERICA, INC.

Carefully force piston out through connection bore with compressed air.

To protect piston, place a protective plate (e.g. hard wood or hard felt) in caliper recess.

Do not grip piston with fingers - risk of trapping!

Fig 2: Placing Protective Plate In Caliper

Courtesy of BMW OF NORTH AMERICA, INC.

Press off dust sleeve (1).

Fig 3: Identifying Dust Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

Carefully remove seal (1) with special tool 00 9 316 .

Clean cylinder bores and parts with alcohol and dry with compressed air.

Thoroughly inspect cylinder bore, piston and flange surfaces. Machining of cylinders and pistons is not permitted.

Install new seal.

Installation:

Apply a light coat of Ate brake cylinder paste to cylinder bore, piston and seal,

Refer to BRAKES - OPERATING FLUIDS .

Fig 4: Removing Seal With Special Tool (00 9 316)

Courtesy of BMW OF NORTH AMERICA, INC.

Fit dust sleeve (1) in annular groove of piston (2).

IMPORTANT: Do not twist brake piston.

Press piston into cylinder bore.

Evenly press dust sleeve (1) onto brake caliper housing as far as it will go.

Installation:

The area between the dust sleeve and the brake caliper housing must be kept dry. It must not come into contact with Ate brake cylinder paste or brake fluid so as to ensure that the dust sleeve is perfectly seated.

Fig 5: Pressing Dust Sleeve Onto Brake Caliper Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Special tools required:

00 9 316

See BRAKES - SPECIAL TOOLS .

WARNING: In the following work step, large forces occur at the brake caliper piston (up to more than
2800 N).
Risk of injury!

Press off dust sleeve (1).

Installation:

Dust sleeve must be correctly seated in groove (2) of piston and groove (3) of brake caliper.

Fig 1: Pressing Dust Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: To protect the pistons, place a protective plate (2) (e.g. hard wood or hard felt) in caliper recess.
Do not grip piston with fingers - risk of trapping!

Check guide sleeves (1), fitting repair-kit guide sleeve if necessary.

Carefully force piston out through connection bore with compressed air.

Installation:

Do not jam piston when pressing in.

Fig 2: Placing Protective Plate In Caliper

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Machining of cylinders and pistons is not permitted.

Carefully remove seal (1) with special tool 00 9 316 .

Clean cylinder bores and parts with alcohol and dry with compressed air.

Thoroughly inspect cylinder bore, piston and flange surfaces.

Install new seal.

Installation:

Apply a light coat of ATE brake cylinder paste to cylinder bore, piston and seal,

Refer to BRAKES - OPERATING FLUIDS .

Fig 3: Identifying Seal

Courtesy of BMW OF NORTH AMERICA, INC.