Removing Wheel Electronics
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 325Ci, 2005 BMW 325xi, 2005 BMW 325i, 2005 BMW 325Ci, and 2004 BMW 325xi. However, it is still accessible from the selected car via links, so may be relevant.
Release Torx socket screw (1).
Remove wheel electronics (2).
Check filter surface (1) for pressure measurement for contamination.
NOTE:
Wipe filter surface with a clean cloth only. If filter surface is dirty, replace wheel electronics.
Release union nut with special tool 00 2 190; if necessary, grip valve body (1) at cylindrical section of ball head.
Remove valve body from rim.
Remove washer (1).