The anti-theft alarm is activated automatically when the vehicle is locked using the vehicle key.
When does the system trigger an alarm?
The anti-theft alarm issues acoustic and visual alarm signals for up to five minutes if any of the
following unauthorised actions are performed while the vehicle is locked:
• A door that was unlocked mechanically with the vehicle key is opened.
• A door is opened.
• The bonnet is opened.
• The boot lid is opened.
• Switch on the ignition using an invalid vehicle key.
• If the 12-volt vehicle battery is disconnected.
• Movement inside the vehicle (in vehicles with interior monitoring
⇒
Interior monitoring system
and anti-tow alarm
).
• The vehicle is towed (in vehicles with anti-tow alarm
⇒
Interior monitoring system and anti-tow
alarm
).
• The vehicle is lifted (in vehicles with anti-tow alarm
⇒
Interior monitoring system and anti-tow
alarm
).
• The vehicle is transported on a car ferry or by rail (in vehicles with anti-tow alarm or interior
monitoring
⇒
Interior monitoring system and anti-tow alarm
).
• A trailer that is connected to the anti-theft alarm system is removed
⇒
Trailer towing
.
Switching off the alarm
• Unlock the vehicle using the unlocking button
on the vehicle key.
•
OR:
switch on the ignition using a valid vehicle key. A short alarm lasting around one second
may sound.
• In vehicles with keyless access, the alarm can also be switched off by gripping the door handle
⇒
Locking and unlocking the vehicle with keyless access
.
The alarm will be triggered again if a person gains access to the same or a different secured
zone after the alarm has been switched off.
The anti-theft alarm will
not
be activated if the vehicle is locked from the inside using the
central locking button
.
If you unlock the driver door mechanically using the vehicle key, only the driver door is
unlocked, and not the whole vehicle. The SAFELOCK mechanism on all doors is not deactivated
and the central locking button is not activated until you switch on the ignition (however the doors will
not be unlocked).
The anti-theft alarm will not function correctly if the 12-volt vehicle battery is weak or
discharged.
Interior monitoring system and anti-tow alarm
Fig. 67
In the roof console: sensors for the interior monitoring system (arrows).
First read and observe the introductoryinformation and safety warnings
⇒
Introduction
If movements are detected in the vehicle interior when the vehicle is locked, the interior monitoring
system triggers an alarm
⇒
Fig. 67
.
The anti-tow alarm will be triggered if the vehicle is lifted.
Switching on the interior monitoring system and anti-tow alarm
Close the stowage compartments in the roof console, otherwise correct functioning of the interior
monitoring system cannot be fully guaranteed.
