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Safety and Security
Anti-theft systems
̄ Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey
̈ Remove the SmartKey from the starter
switch.
The immobilizer is activated.
With KEYLESS-GO*
̈ Press the KEYLESS-GO start/stop but-
ton once.
The engine is turned off.
̈ Open the driver’s door.
Deactivating
With the SmartKey
̈ Turn the SmartKey in the starter switch
to position 2 (
୴ page 36).
With KEYLESS-GO*
̈ Start the engine by means of the
start/stop button on the gear selector
lever.
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
ț a door
ț the trunk
ț the hood
The alarm will stay on, even if the activat-
ing element (a door, for example) is imme-
diately closed.
The alarm system will also be triggered
when
ț someone attempts to raise the vehicle
(only vehicles with tow-away alarm)
ț the vehicle is opened with the mechan-
ical key
ț someone opens a door from the inside
ț someone opens the trunk with the
emergency release button
i
In case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Center
or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).