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The PRE-SAFE
®
Brake will remain passive
while DISTRONIC PLUS is switched on
(Y page 130).
After a hard collision or damage to the front
of the vehicle from an accident, have the
settings and operation of the radar sensors
checked by an authorized Mercedes-Benz
Center.
X
Activating and deactivating: Activate or
deactivate the PRE-SAFE
®
Brake using the
instrument cluster control system
(Y page 120).
After the function has been activated, the
PRE-SAFE
®
Brake indicator Ä appears
in the instrument cluster. When the HOLD
function is switched on, the PRE-SAFE
®
Brake indicator Ä will not appear.
In vehicles with Parking Guidance, the
automatic transmission must be in park
position P for the PRE-SAFE
®
Brake
indicator
Ä
to be displayed.
The PRE-SAFE
®
Brake is deactivated when
the radar system is switched off. When you
switch off the radar system, the following
functions are deactivated:
R
PRE-SAFE
®
Brake
R
BAS PLUS (Y page 60)
R
DISTRONIC PLUS (Y page 130)
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
R
a door
R
the trunk
R
the hood
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
R
the vehicle is opened with the mechanical
key
R
a door is opened from the inside
R
the trunk is opened with the emergency
release button
To cancel the alarm after it has been
triggered, see “Canceling the alarm”
(Y page 67).
66
Anti-theft systems
Safety and security
207_AKB; 2; 35, en-US
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2009-07-17T07:10:21+02:00 - Seite 66