102 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.
All turn signal lamps flash once.
The locking knobs in the doors
move up.
The anti-theft alarm system is
disarmed. The vehicle will lock again automatically
and rearm the anti-theft alarm system
within approximately 40 seconds of
unlocking if
neither door nor tailgate is opened
the SmartKey is not inserted in the
starter switch
the central locking switch is not
activated
Global locking
Press button ‹.
With the hood, tailgate and all doors
closed:
All turn signal lamps flash three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed. Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that press-
ing button
Œ only unlocks the driver’s
door and the fuel filler flap.
Press and hold buttons Œ and‹
simultaneously for about 5 seconds
until battery check lamp 5
(
page 100) flashes twice.
The SmartKey will then function as
follows:
Unlocking driver’s do or and fuel filler
flap
Press button Œ once.
All turn signal lamps flash once.
The locking knobs in the doors
move up.
The anti-theft alarm system is
disarmed.
iYou can also open or close the power
windows and tilt/slidin g sunroof using the
SmartKey, see “Summer opening feature”
(
page 193) and see “Convenience closing fea-
ture” (
page 194).
W463.boo Seite 102 Montag, 19 . November 2007 8:41 08
103
Controls in detail
Locking and unlocking
Global unlocking
Press button
Œ twice.
All turn signal lamps flash once.
The locking knobs in the doors
move up.
The anti-theft alarm system is
disarmed.
Global locking
Press button ‹.
With the hood, tailgate and all doors
closed:
All turn signal lamps flash three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed. Restoring to factory setting
Press and hold buttons
Œ and‹
simultaneously for about 6 seconds
until battery check lamp 5
(
page 100) flashes twice.
Checking batteries in the SmartKey
Press button ‹ orŒ .
Battery check lamp 5 (
page 100)
comes on briefly to indicate that the
SmartKey batteries are in order.
Loss of the SmartKey
If you lose your SmartKey or mechanical
key, you should do the following:
Have the SmartKey deactivated at an
authorized Mercedes -Benz Light Truck
Center.
Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.
If necessary, have the mechanical lock
replaced.
Any authorized Mercedes-Benz Light Truck
Center will be glad to supply you with a re-
placement.
iIf battery check lamp 5 does not come on
briefly during check, the SmartKey batteries are
discharged.
Replace the batteries (
page 374).
You can obtain the required batteries at any
authorized Mercedes-Benz Light Truck Center.
iIf the batteries are checked within signal
range of the vehicle, pressing button ‹
or Œ will lock or unlock the vehicle
accordingly.
W463.boo Seite 103 Montag, 19 . November 2007 8:41 08
104 Controls in detail
Locking and unlocking
Opening the doors from the inside
You can open a locked door from the
inside. Open door only when conditions
are safe to do so.1 Locking knob
2 Inside door handle Front doors
Pull on inside door handle
2 on the
respective front door to open door.
If the door was locked, locking knob 1
will move up.
Rear doors
Pull up locking knob 1 on the
respective rear door to unlock door.
Pull on inside door handle 2 on the
respective rear door to open door.
iIf the vehicle has previously been locked
with the SmartKey, opening a door or the tailgate
from the inside will trigger the anti-theft alarm
system.
To cancel the alarm, do one the following:
Insert the SmartKey in the starter switch.
Press button Œ or‹ on the
SmartKey.iIf you hear a warning signal you have forgot-
ten to switch off the headlamps before opening
the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.
!Failure to switch off the headlamps when
leaving the vehicle may result in a discharged
battery.
W463.boo Seite 104 Montag, 19 . November 2007 8:41 08
105
Controls in detail
Locking and unlocking
Tailgate
Opening the tailgate from the outside
1 Lock cylinder
2 Tailgate handle
Press lock cylinder 1 and pull on
tailgate handle 2.
Open the tailgate to the side. Opening the tailgate from inside
1 Locking knob
2 Inside door handle
Pull on inside door handle 2 to open
the tailgate.
If the door was locked:
Pull up locking knob 1 to unlock the
tailgate.
Pull on door handle 2 to open the
tailgate.
Warning!G
The tailgate swings open to one side. Always
make sure there is su fficient clearance for
the tailgate.
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide
(CO) gases may enter vehicle interior result-
ing in unconsciou sness and death.
iThe vehicle must be unlocked (page 38).
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106 Controls in detail
Locking and unlocking
Closing the tailgateAutomatic central locking
The doors and the tailgate lock automati-
cally when the ignition is switched on and
the wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or more.
You can open a locked door from the
inside. Open door only when conditions
are safe to do so.
For information on towing the vehicle, see
“Towing the vehicle” (
page 399).
You can deactivate the automatic locking
mode using the control system
(
page 155).
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or se rious personal injury.
Warning!G
Never drive vehicle with the tailgate open.
Deadly carbon monoxide (CO) gases may
enter vehicle interior resulting in uncon-
sciousness and death.
iTo prevent an inadvertent lockout, do not
place the SmartKey in the cargo compartment.
iThe doors and the tailgate unlock auto-
matically after an accident if the force of the
impact exceeds a preset threshold.
The vehicle automatically locks when the ignition
is switched on and the wheels are turning at
vehicle speeds of approximately 9 mph
(15 km/h) or more. You could therefore lock
yourself out when the vehicle
is pushed or towed
is on a test stand
W463.boo Seite 106 Montag, 19 . November 2007 8:41 08
107
Controls in detail
Locking and unlocking
Locking and unlocking from the inside
You can lock or unlock the doors and the
tailgate from inside using the central lock-
ing or unlocking switch. This can be useful,
for example, if you want to lock the vehicle
before starting to drive.
The fuel filler flap cannot be locked or
unlocked with the central locking or
unlocking switch.
The switches are located on the upper part
of the center console.
1 Central unlocking switch
2 Central locking switch
Locking
Press central locking switch 2.
If all doors and the tailgate are closed,
the vehicle locks. Unlocking
Press central unlocking switch
1.
The vehicle unlocks.
Warning!G
When leaving the vehicl e, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
iYou can open a locked door from inside at
any time. Open door only when conditions are
safe to do so.
If the vehicle was previously centrally locked
with the SmartKey, it will not unlock using
central unlocking switch 1.
If the vehicle was previously locked with central
locking switch 2:
and the SmartKey is set to factory settings,
the complete vehicle is unlocked when a
front door is opened from the inside.
and the SmartKey is set to selective settings,
only the front door opened from the inside is
unlocked.
W463.boo Seite 107 Montag, 19 . November 2007 8:41 08
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.
W463.boo Seite 120 Montag, 19 . November 2007 8:41 08
125
Controls in detail
Lighting
Interior lighting in the front
The controls for the interior lighting are
located in the overhead control panel.
1 Left reading lamp
2 Left reading lamp switch
3 Right reading lamp switch
4 Right reading lamp
5 Rocker switch for automatic control
6 Interior lamp Automatic control
Deactivating automatic control
Press symbol
= on rocker
switch 5.
The interior lighting remains switched
off in darkness, even when you
unlock the vehicle
remove the SmartKey from the
starter switch
open a door Activating automatic control
Move rocker switch
5 to center
position.
The interior lighting (except cargo
compartment lamps) comes on in
darkness when you
unlock the vehicle
remove the SmartKey from the
starter switch
open a front door (only the interior
lighting in the front comes on)
open a rear door (only the rear
interior lamps come on, if the rear
automatic control is activated
(
page 126)
The interior lighting switches off after
10 seconds if feature is activated, see
“Setting interior lighting delayed shut-off”
(
page 154).
!An interior lamp switched on manually does
not go out automatically.
Leaving an interior lamp switch in the ON
position for extended periods of time with the
engine turned off could result in a discharged
battery.
iThe interior lighting is factory-set to
automatic mode.
iIf a door remains open, the interior lamps
switch off automatically after approximately
5 minutes when the SmartKey is removed or in
starter switch position 0.
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