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.
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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:
Notes
Set pressure regulator on special tool 16 1 171 fully in "-" direction.
Connect special tool 16 1 171 using compressed air line (1) to workshop
compressed air system (8... 10 bar).
Connect pressure sensor (2) from Diagnosis and Information System.
Connect special tool 16 1 172 to quick-rele
WARNING:
Avoid contact with refrigerant and refrigerant fluid
Follow safety information for handling R134A refrigerant.
Follow safety information for HANDLING REFRIGERANT FLUID
IMPORTANT:
Always use new O-rings each time A/C connections are opened (refer to
Electronic Parts Catalogue)
They