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 LEFT MICROFILTER HOUSING COVER .
Vehicles with optional equipment 106 or 109, remove expansion tank reinforcement.

NOTE: Extract brake fluid out of expansion tank. Use a suction bottle used exclusively for drawing off brake fluid.

Do not reuse drawn out brake fluid.

Unfasten plug connection (1) and disconnect.

Remove wiring harness from holder (2).

Release screw (3) and lift off expansion tank vertically in upward direction.

Fig 1: Lifting Off Expansion Tank

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Check rubber plug in brake master cylinder for damage and replace if necessary.
Push the expansion tank vertically onto the master brake cylinder.

Fig 2: Pushing Expansion Tank Onto Master Brake Cylinder

Courtesy of BMW OF NORTH AMERICA, INC.