34 11 552 Overhauling left or right front brake caliper (brake caliper removed) Version 2

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 316. See 00 9 310 ASSEMBLY WEDGES (SET IN PLASTIC CASE)

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

NOTE: Use repair kit, refer to BMW Parts Service.

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

NOTE: Use repair kit, refer to BMW Parts Service.

Press off dust sleeve (1).

Installation: Dust sleeve must be correctly seated in groove (2) of piston and groove (3) of brake caliper. 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 1: Dust Sleeve Must Be Correctly Seated In Groove (2) Of Piston And Groove (3) Of Brake Caliper

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.

Fig 2: Check Guide Sleeves (1)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: Do not jam piston when pressing in.

IMPORTANT: Machining of cylinders and pistons is not permitted.

Carefully remove sealing ring (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.

Fig 3: Carefully Remove Sealing Ring (1) With Special Tool 00 9 316

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: Apply a light coat of Ate brake cylinder paste to cylinder bore, piston and seal, refer to BMW Service Operating Fluids.