61 35 900 Removing and installing/replacing ring antenna of electronic immobilizer
WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.
Unscrew screw.
Press upper section of steering column trim inwards on both sides in areas shown, detach lower section from below and allow it to hang down.
Installation:
Locking unit (1) must locate in the hook (2).
Release screw and raise upper panel.
Remove transceiver module and disconnect plug.
Slide in special tool 61 3 300 with flattened end (A) facing ring antenna and lever out ring antenna.