34 33 505 Removing and installing/replacing brake booster

WARNING: This page is about a different car, the 2007 BMW 550i, 2006 BMW 550i, 2005 BMW 545i, and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary Preliminary Tasks:

Read and comply with General Information. Refer to 34 00 ... GENERAL INFORMATION .
Remove brake master cylinder. Refer to 34 31 505 REMOVING AND INSTALLING / REPLACING MASTER BRAKE CYLINDER FOR DSC .

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

Release nuts (2).

Installation:

Replace self-locking nuts.

Tightening torque, refer to 35 11 1AZ in PEDALS - TIGHTENING TORQUES - E60 .

Fig 1: Locating Locking Clip For Brake Pedal

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

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

Fig 2: View Of Non-Return Valve For Brake Booster

Courtesy of BMW OF NORTH AMERICA, INC.