Anti-Theft Systems; Immobilizer; Anti-Theft Alarm - Mercedes-Benz 2004 M-Class Operator's Manual

Anti-theft systems

Immobilizer

The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
Removing the key from the steering lock
activates the immobilizer.
Deactivating
Turning the key in the steering lock to
position 2 ( page 33) deactivates the im-
mobilizer.
i
In case the engine cannot be started
(vehicle's battery is in order), the sys-
tem is not operational. Contact an au-
thorized Mercedes-Benz Light Truck
Center or call 1-800-FOR-MERCedes
(in the USA), or 1-800-387-0100 (in
Canada).

Anti-theft alarm

Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone:
opens a door
opens the liftgate
opens the hood
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
unlocking and opening the driver's
door with the mechanical key
Safety and Security
Anti-theft systems
i
If the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid* sys-
tem ( page 171) provided Tele Aid
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.
Arming the alarm system
The alarm system is armed after locking
the vehicle with the remote control. The
turn signal lamps flash three times to indi-
cate that the alarm system is activated. A
red lamp in the center console will flash af-
ter approximately 10 seconds when the
alarm system is completely armed
( page 27).
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