Necessary preliminary tasks

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.

Read and comply with GENERAL INFORMATION .
Remove BRAKE MASTER CYLINDER .
Remove left FOOTWELL TRIM .

Detach locking clip (1) from brake pedal, disengage and pull out locking pin.

Unscrew nuts (2).

Installation:

Replace self-locking nuts.

Tightening torque 35 11 1AZ .

Fig 1: Disconnecting Locking Clip From Brake Pedal

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not use any force when removing and installing the brake unit; the brake unit can be damaged under certain circumstances.
Brake lines must not be bent.

Remove non-return valve (1) from brake booster.

Carefully pull brake booster (2) out of bulkhead and tilt out.

Fig 2: Removing Non-Return Valve From Brake Booster

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, press brake lines to one side slightly.