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

WARNING: This page is about a different variant/trim than selected.

Special tools required:

00 9 316

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

Danger of injury!

NOTE: Use repair kit.

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

Fig 1: Identifying Brake Caliper Housing 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: Removing Piston From Connection Bore Using Compressed Air

Courtesy of BMW OF NORTH AMERICA, INC.

Press off dust sleeve (1).

Fig 3: Identifying Brake Caliper Housing 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 BMW Service Operating Fluids .

Fig 4: Identifying Special Tool (00 9 316) And Brake Caliper Housing Seal

Courtesy of BMW OF NORTH AMERICA, INC.

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

Press piston into cylinder bore.

IMPORTANT: Do not twist brake piston.

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: Identifying Brake Caliper Housing Dust Sleeve And Annular Groove

Courtesy of BMW OF NORTH AMERICA, INC.