BMW 7 Series: Anti-Theft Alarm System
REMOVING AND INSTALLING/REPLACING EMERGENCY POWER SIREN WITH
TILT SENSOR
Necessary preliminary work
- Remove GUIDE FOR BUMPER AT REAR RIGHT
Secure guide for bumper (3) against falling out.
Unfasten plug connection (1) and disconnect.
Slacken nut (1).

Fig. 93: Identifying Bumper, Plug Connection And Slacken Nut
Unlock catch (1).
Remove emergency power siren (2) from guide for bumper (3).
Catch (1) must not be damaged.
Make sure emergency power siren (2) is correctly seated on guide for bumper (3).

Fig. 94: Identifying Catch And Power Siren
Replacement
Carry out VEHICLE PROGRAMMING/ENCODING.
READ NEXT:
REMOVING AND INSTALLING (REPLACING) LEFT PEDESTRIAN PROTECTION
SENSOR
WARNING: Observe SAFETY INSTRUCTIONS for handling gas generators.
Incorrect handling can activate pedestrian protection and cause
Fig. 101: Overview Of Aerial Diversity
Aerial amplifier
Blocking circuit
AM choke (US vehicles only)
Back - up aerial
Interference suppression filter
OVERVIEW OF SENSORS FOR AIRBAG SYSTEM AND
SEE MORE:
Steering angle detection
The code disc enables a 4-digit digital code to be generated for each light
field. The 12- digit digital code is
formed by lining up the 4-digit digital codes. The steering-angle speed can be
ascertained from the changes to
the individual digital codes.
Fig. 135: Operatin
REMOVING AND INSTALLING/REPLACING HANDS-FREE MICROPHONE, DRIVER'S
SIDE
Lever out microphone cover (1) at front in direction of arrow.
Disconnect plug connection underneath and remove microphone cover (1).
Fig. 13: Removing Microphone Cover
Unlock retaining lug (1) and feed out hands-free microphon