61 35 900 Removing and installing/replacing ring antenna of electronic immobilizer: Installation:
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.
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.