Mercedes-Benz CLK-Class Owner's Manual page 75

Safety
Anti-theft systems
Anti-theft systems
Immobiliser
The immobiliser prevents your vehicle
from being started without the proper key.
Activating
With the key: the immobiliser is acti-
vated when you remove the key from
the ignition lock.
With KEYLESS GO*: if you switch off
the engine using the KEYLESS GO but-
ton on the selector lever and lock the
doors from the outside.
Deactivating
With the key: the immobiliser is deacti-
vated when you switch on the ignition.
With KEYLESS GO*: the immobiliser is
deactivated when you switch on the
engine using the button on the selector
lever.
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Anti-theft alarm system (ADA)*
A visual and audible alarm is triggered if
the alarm system is primed and one of the
following is opened:
a door
the boot lid
the bonnet
The alarm is also triggered if:
a door is opened using the emergency
key element
i
The alarm remains on even if an opened
door is closed again.
Priming the anti-theft alarm system
The indicator lamp is located in the button
for tow-away protection*.
P54.25-3806-31
1 Indicator lamp
Lock your vehicle.
The alarm system is primed after
approximately 15 seconds. Indicator
lamp 1 flashes.
Deactivating the anti-theft alarm
system
When you unlock your vehicle, the anti-
theft alarm system is deactivated.
The anti-theft alarm system will be trig-
gered if you unlock your vehicle using the
emergency key element and then open it.