Anti-Theft Systems; Anti-Theft Alarm System; Immobilizer - Mercedes-Benz 2009 C-Class Operator's Manual

Anti-theft systems

Immobilizer

The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
Activating
X
With SmartKey: Remove the SmartKey
from the starter switch.
X
With KEYLESS-GO: Turn off the engine and
open the driver's door.
Deactivating
X
Switch on the ignition.
i Starting the engine will also deactivate
the immobilizer.
In the event that 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).

Anti-theft alarm system

Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
a door
R
the trunk
R
the hood
R
The alarm will stay on even if the activating
element (a door, for example) is immediately
closed.
The alarm system will also be triggered when
the vehicle is opened with the mechanical
R
key
a door is opened from the inside
R
the trunk is opened with the emergency
R
release button
To cancel the alarm after it has been
triggered, see "Canceling the
alarm" ( Y page 74).
i If the alarm stays on for more than
30 seconds, a call to the Response Center
is initiated automatically by the Tele Aid
system provided that you have subscribed
to the Tele Aid service and that it has been
activated properly, and that the necessary
Safety and security
Anti-theft systems
mobile phone, power supply and GPS
coverage are available.
Indicator lamp
1
X
Arming: Lock the vehicle with the
SmartKey or with KEYLESS-GO.
The turn signal lamps flash three times and
an acoustic warning sounds three times to
indicate that the vehicle is locked. Indicator
lamp flashes to indicate that the alarm
1
system is armed.
i If the turn signal lamps do not flash three
times and the acoustic warning does not
sound three times, a door or the trunk may
not be properly closed.
Z
73