Anti-Theft Systems - Mercedes-Benz R-Class W251 2009 Operator's Manual

®
The ESP will assist you in such situations.
®
The ESP recognizes when the trailer starts
swaying and will apply the brakes to reduce
the vehicle speed to a non-critical speed that
allows the vehicle-trailer combination to
stabilize.
®
The ESP trailer stabilization is functional at
vehicle speeds above approximately 40 mph
(65 km/h) when the ESP
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.

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.
®
is switched on.
Anti-theft systems
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 closed
immediately.
The alarm system will also be triggered when
the vehicle is opened with the mechanical
R
key
a door is opened from the inside
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To cancel the alarm after it has been
triggered, see "Canceling the alarm"
( Y page 68).
If the alarm stays on for more than
i
30 seconds, the Tele Aid system initiates a
call to the Response Center automatically.
The Tele Aid system will initiate the call
provided that
you have subscribed to the Tele Aid
R
service
the Tele Aid service has been activated
R
properly
the necessary mobile phone, power
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supply and GPS coverage are available
67
Z