61 33 000 Replacing horn (anti-theft system)
WARNING: This page is about a different car, the 2003 BMW Z8, 2002 BMW Z8, 2001 BMW Z8, and 2000 BMW Z8. However, it is still accessible from the selected car via links, so may be relevant.
Remove microfilter housing. Refer to 64 11 220 REMOVING AND INSTALLING/REPLACING RESISTOR FOR HEATER BLOWER .
Disconnect plug connection (1).
Release nut (2) and remove horn (3).