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

Safety and security

Anti-theft systems

®
The ESP trailer stabilization is functional at
vehicle speeds above approximately 40 mph
®
(65 km/h) when the ESP is switched on.
G Warning!
The system will not be able to assist when
the trailer jackknifes
®
if the ESP has switched off due to a
R
malfunction
on wet or icy roads
R
on roads with slippery surface
R
in sand or gravel
R
Trailers with a high center of gravity may tip
over before the system recognizes swaying
of the trailer.
80
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 tailgate
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
To cancel the alarm after it has been
triggered, see "Canceling the
alarm" ( Y page 81).
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
mobile phone, power supply and GPS
coverage are available.