Operation CHARM: Car repair manuals for everyone.

Antitheft and Alarm Systems: Locations







Component Locations: Central Locking / Anti-Theft Systems

Ultrasonic Interior Monitoring Overview







1 Individual Sensor
For the anti-theft alarm system sensor => [ Anti-Theft Alarm System Sensor ] See Image Below.
2 Alarm Horn -H12-
Located in cowl => [ Alarm Horn ] See Image Below.
3 Nut
4 Nut
5 Alarm Horn Bracket
6 Retaining Frame
For the control modules
7 Comfort System Central Control Module -J393-
8 Antenna Amplifier -R24-
With Central Locking and Anti-Theft Alarm System Antenna -R47-
9 Passenger Compartment Monitoring Switch -E183- / Alarm System -Off- Switch -E217-
10 Interior Lamps / Front Reading Lamps
11 Right Interior Monitoring Individual Sensor
Can only be replaced together with anti-theft alarm system sensor
12 Anti-Theft Alarm System Sensor -G578-
13 Left Interior Monitoring Individual Sensor
Can only be replaced together with anti-theft alarm system sensor

Anti-Theft Alarm System Sensor






1 - Anti-Theft Alarm System Sensor, located in overhead lamp module

Alarm Horn






2 - Alarm Horn -H12- , located in cowl