Removing wheel electronics

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

Release union nut (1).

Fig 1: Identifying Wheel Electronics Union Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Remove wheel electronics and valve (1) from valve hole.

Fig 2: Identifying Wheel Electronics Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Using suitable pliers (2), unscrew valve (1) from the thread of the square-head bolt (3), while holding the wheel electronics module (4) firm. Completely unscrew valve (1).

Remove square head screw from fixture for wheel electronics module.

Installation note:

The valve must be renewed!

Failure to replace the part leads to leaks!

Fig 3: Holding Wheel Electronics Module Firm

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Before the installation of new wheel electronics with valve, thoroughly clean the valve bore of the wheel rim!
Also make sure that the valve bore is free of burrs