Mercedes Benz 2008 cls-class User Manual

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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 (
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
a door
the trunk
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
someone attempts to raise the vehicle 
(only vehicles with tow-away alarm)
the vehicle is opened with the 
mechanical key
someone opens a door from the inside
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).