Mercedes-Benz 2008 R 320 CDI 4MATIC Operator's Manual page 108

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If the alarm stays on for more than
30 seconds, a call to the Response Center is
initiated automatically by the Tele Aid* system
( page 322) provided that the Tele Aid* service
was subscribed to and properly activated, and
that necessary cellular service and GPS cover-
age are available.
Arming the alarm system
The alarm system indicator lamp is located
to the lower left of the hazard warning
flasher.
1 Alarm system indicator lamp
Lock the vehicle with the SmartKey or
with KEYLESS-GO* ( page 67).
The turn signal lamps flash three times
to indicate that the vehicle is locked.
Alarm system indicator lamp 1 starts
flashing.
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If the turn signal lamps do not flash three
times, one of the following elements may not be
properly closed:
a door
the tailgate
Close the respective element and lock the
vehicle again.
Disarming the alarm system
Unlock the vehicle with the SmartKey
or with KEYLESS-GO* ( page 38).
The turn signal lamps flash once to
indicate that the vehicle is disarmed.
Alarm system indicator lamp 1 goes
out.
Safety and Security
Anti-theft systems
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The alarm system will rearm automatically
again after approximately 40 seconds if neither a
door nor the tailgate is opened.
Canceling the alarm
With the SmartKey
Insert the SmartKey in the starter
switch.
or
Press the Œ or ‹ button on the
SmartKey.
With KEYLESS-GO*
Grasp an outside door handle.
The SmartKey with KEYLESS-GO must
be within 3 ft (1 m) of the vehicle.
or
Press the KEYLESS-GO start/stop
button ( page 41).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
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