Page 95 of 457

94 Safety and Security
Driving safety systems
Even if the ESP® has been switched off, it
is still active in the following situations:
when braking
at vehicle speeds up to approximately
37 mph (60 km/h), if one wheel
reaches the grip lim it, e.g. when the
street is icy on one side
The brake is applied until the wheel
regains sufficient traction.
If one or more drive wheels are spinning,
the ESP
® warning lamp v in the instru-
ment cluster flashes, regardless of the
speed. Switching on the ESP
®
Press switch
1 once more.
The ESP
® warning lamp v in the
instrument cluster goes out.
You are now again in normal driving
mode with the ESP
® switched on.
For more information, see “Practical hints”
(
page 330).
Warning!G
When the ESP® warning lamp v is
illuminated continuously, the ESP® is
switched off or it is not operational due to a
malfunction.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP
®.
!Avoid spinning of a drive wheel for an
extended period of time with the ESP® switched
off. This may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
iIf the ESP® is switched off, it will be auto-
matically activated when exceeding a vehicle
speed of 37 mph (60 km/h) or exceeding a
severity threshold of side acceleration.
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Page 96 of 457

95
Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prev ents unauthorized
persons from starting your vehicle.
Activating
Remove the SmartKey from the starter
switch.
Deactivating
Turn the SmartKey in the starter switch
to position 2 (
page 39).
Anti-theft alarm
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
a door
the tailgate
the hood
The alarm will stay on, even if the activat-
ing element (a door, for example) is imme-
diately closed. The alarm system will also be triggered
when
someone attempts to raise the vehicle
the vehicle is opened with the
mechanical key
someone opens a door from the inside
someone opens the tailgate from the
inside
iStarting the engine wi
ll also deactivate the
immobilizer.
In case the engine cannot be started (yet the
vehicle’s battery is charged), the system is not
operational. Contact an authorized
Mercedes-Benz Light Truck Center or call
1-800-FOR-MERCedes (in the USA), or
1-800-387-0100 (in Canada).
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Page 97 of 457

96 Safety and Security
Anti-theft systems
Arming the alarm system
The alarm system is armed after you have
locked the vehicle with the SmartKey.
The alarm system indicator lamp is located
in the tow-away alarm switch on the upper
part of the center console.
1 Alarm system indicator lampMake sure all doors and the tailgate are
closed.
Lock the vehicle with the SmartKey
(
page 65).
The turn signal lamps flash three times
to indicate that the vehicle is locked.
The alarm system is armed within
approximately 15 seconds. Alarm
system indicator lamp 1 flashes. Disarming the alarm system
Unlock the vehicle with the SmartKey
(
page 38).
The turn signal lamps flash once to
indicate that the alarm system is
disarmed. Alarm system indicator
lamp 1 goes out.
Canceling the alarm
Insert the SmartKey in the starter
switch.
or
Press button Œ or‹ on the
SmartKey.
iIf the turn signal lamps do not blink three
times, one of the followi ng elements may not be
properly closed:
a door
the tailgate
Close the respective element and lock the
vehicle again.
iThe alarm system will rearm automatically
after approximately 40 seconds if neither a door
nor the tailgate is opened.
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97
Safety and Security
Anti-theft systems
Tow-away alarm
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.
Arming tow-away alarm
Lock the vehicle with the SmartKey
(
page 65).
The tow-away alarm is automatically
armed after approximately
30 seconds. Disarming tow-away alarm
To prevent triggering the tow-away alarm
feature, switch off the tow-away alarm
before towing the vehicle, or when parking
on a surface subject to movement, such as
a ferry or auto train.
The tow-away alarm off switch is located
on the upper part of the center console.
1 Tow-away alarm off switch
2 Indicator lamp
Switch off the ignition and remove the
SmartKey from the starter switch.
Press switch 1.
Indicator lamp 2 comes on briefly.
Exit and lock the vehicle with the
SmartKey (
page 65).
Canceling the tow-away alarm
Press the Œ or‹ button on the
SmartKey.
or
Insert the SmartKey in the starter
switch.
iYou cannot disarm the tow-away alarm
when the ignition is switched on.
iWhen you unlock the vehicle, the tow-away
protection disarms automatically.
The tow-away alarm remains disarmed until you
lock your vehicle again.
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Page 111 of 457

110 Controls in detail
Seats
Rear seatsHead restraint height
Warning!G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing position. Thus, we strongly recommend
that children be placed in the rear seats
whenever possible. Regardless of seating
position, children 12 years old and under
must be seated and properly secured in an
appropriately sized infant restraint, toddler
restraint, or booster seat recommended for
the size and weight of the child. For addi-
tional information, see “Children in the vehi-
cle” (
page 77).
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle
and/or the child is no t properly secured in
the child restraint.
Warning!G
Always lock seat backrest in its upright
position when rear seat bench is occupied
by passengers, or cargo is being carried
behind the rear seat bench.
To help avoid personal injury from smaller
objects flying in the occupant area during a
collision or sudden maneuver, always use
partition net when transporting cargo
(
page 210).
Warning!G
Do not drive the vehicle without the seat
head restraints installed when the rear seat
bench is occupied. Head restraints are
intended to help reduce injuries during an
accident.
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint in such a way that
it is as close to the head as possible and the
center of the head restraint supports the
back of the head at eye level. This will
reduce the potential fo r injury to the head
and neck in the event of an accident or
similar situation.
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111
Controls in detail
Seats
Raising:
Manually adjust the
height of the head
restraint by pulling it upward to the
desired position.
Lowering:
Manually adjust the height of the head
restraint by pushing it downward to the
desired position. Removing and installi
ng rear seat head
restraints
Removing rear seat head restraints
Pull out the head restraint with both
hands.
Installing rear seat head restraints
Insert the head restraint into openings
on the seat backrest.
Push the head restraint down to the
stop.
Adjust the head restraint to the desired
position.
Warning!G
Do not drive the vehicle without the seat
head restraints installed when the rear seat
bench is occupied. Head restraints are
intended to help reduce injuries during an
accident.
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint in such a way that
it is as close to the head as possible and the
center of the head restraint supports the
back of the head at eye level. This will
reduce the potential fo r injury to the head
and neck in the event of an accident or
similar situation.
Do not interchange he ad restraints from
front and rear seat.
iThe head restraint(s) should be stored in a
secure place.
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Page 115 of 457

114 Controls in detail
Memory function
Prior to operating the vehicle, the driver
should check and adjust the seat height,
seat position fore and aft, and seat back-
rest angle if necessary, to ensure adequate
control, reach and comfort. The head
restraint should also be adjusted for
proper height. See also the section on
air bags (
page 70) for proper seat
positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, operation
and comfort. Both the interior and exterior
rear view mirrors should be adjusted for
adequate rear vision.
Fasten seat belts. Infants and small
children should be se ated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and Canadian
Motor Vehicle Safety Standards 213 and
210.2. With the memory function you can store up
to three different configurations.
Each stored position on the driver’s side
includes the following settings:
Seat position
Multicontour seat*: previously saved
setting
Steering wheel position
Exterior rear view mirrors’ position
Each stored position on the passenger side
includes the following settings:
Seat position
Multicontour seat*: previously saved
setting
Warning!G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.
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. November 2007 8:41 08
Page 121 of 457

120 Controls in detail
Lighting
When the engine is running, and you
turn the exterior lamp switch to
positionC, the low beam head-
lamps, the tail and parking lamps, the
license plate lamps and the side mark-
er lamps switch on.
turn the exterior lamp switch to
position B, the manual headlamp
mode has priority over the daytime
running lamp mode.
The corresponding exterior lamps
switch on (
page 117). USA only:
When the engine is running, and you turn
the exterior lamp switch to position
C
or B , the manual headlamp mode has
priority over the daytime running lamp
mode.
The corresponding exterior lamps switch
on (
page 117). Locator lighting and night security
illumination
The locator lighting and the night security
illumination are described in the “Control
system” section, see “Setting locator light-
ing” (
page 152) and “Setting night secu-
rity illumination” (
page 153).
Locator lighting lamps in exterior rear
view mirrors
If the vehicle is centrally unlocked in the
darkness, the locator lighting lamps in the
exterior rear view mirrors come on.
If a door is opened, the lamp on the
corresponding side goes out. If no doors
are opened, the lamps will go out:
after a maximum of 40 seconds
immediately, when you switch on the
ignition
iWith the exterior lamp switch in
position M, you cannot switch on the high
beam headlamps.
The high beam flasher is available at all times.
For nighttime driving turn the exterior lamp
switch to position B orU to permit
activation of the high beam headlamps.
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