Necessary preliminary work

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

Remove EXPANSION TANK .
Read and comply with GENERAL INFORMATION .

After completing tasks, bleed BRAKE SYSTEM WITH DSC .

IMPORTANT: Before beginning work, fully press the brake pedal several times to reduce the vacuum pressure in the brake servo.

IMPORTANT: Do not bend brake lines.

Unfasten brake lines (2).

Unclip retaining bar (1) and remove both brake lines from guides.

Installation note:

Tightening torque 34 32 1AZ .

Close off brake lines and brake master cylinder with seal plugs 32 1 270 .

Fig 1: Removing Brake Lines From Guides

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts (3) and feed brake master cylinder out of brake servo.

Installation note:

Replace self-locking nuts.

Tightening torque 34 31 1AZ .

Installation note:

Replace sealing ring.

Fig 2: Identifying Brake Master Cylinder Sealing Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

When inserting the brake master cylinder (2) into the brake servo (1), make sure the pressure rod of the brake servo and that of the brake master cylinder meet each other on one level.

Fig 3: Identifying Brake Master Cylinder And Brake Servo

Courtesy of BMW OF NORTH AMERICA, INC.