Page 97 of 417
96 Controls in detail
Locking and unlocking
Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key, 
you should do the following:
Have the SmartKey deactivated by 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.
Your authorized Mercedes-Benz Light 
Truck Center will be glad to supply you 
with a replacement. 
Opening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are 
safe to do so.
1Locking knob
2Inside door handlei
If the vehicle has previously been 
locked with the SmartKey, opening a 
door or the tailgate from the inside will 
trigger the alarm. 
To cancel the alarm do one the follow-
ing:
Press the Œ or ‹ button on 
the SmartKey.
Insert the SmartKey in the starter 
switch. 
     
        
        Page 98 of 417
97 Controls in detail
Locking and unlocking
Front doors
Pull on door handle2 on the respec-
tive front door to open it.
If the door was locked, locking knob1 
moves up.
Rear doors
Pull up locking knob1 on the respec-
tive rear door to unlock door.
Pull on door handle2 on the unlocked 
door to open it.
Opening the tailgate Opening the tailgate from the outside
1Lock cylinder
2Handle
Press lock cylinder1 and pull on tail-
gate handle2.
Open the tailgate to the side.
Warning!G
The tailgate swings open to one side. Always 
make sure there is sufficient clearance for 
the tailgate.
Only drive with the tailgate closed as other-
wise exhaust fumes may enter the vehicle 
interior.
i
The vehicle must be unlocked. 
     
        
        Page 99 of 417

98 Controls in detail
Locking and unlocking
Opening the tailgate from inside
1Locking knob
2Inside door handle
Pull on door handle2.
If door was locked, pull up locking 
knob1 to unlock the tailgate. Then 
pull on door handle2 to open the 
tailgate.
Closing the tailgateAutomatic central locking
The doors and the tailgate automatically 
lock when ignition is switched on and the 
wheels are turning at vehicle speeds of ap-
proximately 9 mph (15 km/h) or more.
You can open a locked door from the in-
side. Open door only when conditions are 
safe to do so.
You can deactivate the automatic locking 
mode using the control system 
(
page 142).
Warning!G
Do not leave children unattended in the ve-
hicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious 
personal injury.
Warning!G
To prevent possible personal injury, always 
keep hands and fingers away from the tail-
gate opening when closing the tailgate. Be 
especially careful when small children are 
around.
Warning!G
Only drive with the tailgate closed as other-
wise exhaust fumes may enter the vehicle 
interior.
i
To prevent an inadvertent lockout, do 
not place the SmartKey in the cargo 
compartment.
i
The doors and the tailgate unlock auto-
matically after an accident if the force 
of the impact exceeds a preset 
threshold.
To prevent the vehicle door locks from 
locking, deactivate the automatic 
central locking when the vehicle
is pushed
is on a test stand 
     
        
        Page 100 of 417

99 Controls in detail
Locking and unlocking
Locking and unlocking from the inside
You can lock or unlock the vehicle from in-
side using the central locking switches. 
This can be useful, for example, if you want 
to unlock the passenger door from the in-
side or want to lock the vehicle before 
starting to drive.
The fuel filler flap cannot be locked or un-
locked with the central locking switch.The central locking switch is located in the 
center console.
Central locking switch
1Locking
2Unlocking
Locking
Press central locking switch1.
If all the doors and the tailgate are 
closed, the vehicle locks.Unlocking
Press central locking switch2.
The vehicle unlocks.
Warning!G
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 serious personal injury.
i
You can open a locked door from the 
inside. Open door only when conditions 
are safe to do so.
If the vehicle was previously centrally 
locked using the SmartKey, it will not 
unlock using the central locking switch.
If the vehicle was previously locked 
with the central locking switch
while in the selective remote con-
trol mode, only the door opened 
from the inside is unlocked.
while in the global remote control 
mode, the complete vehicle is un-
locked when a door is opened from 
the inside. 
     
        
        Page 101 of 417

100 Controls in detail
Seats
For more information on seat adjustment, 
see the “Getting started” section 
(
page 37).
Easy-entry/exit feature
This feature allows for easier entry into and 
exit from the vehicle.
The easy-entry/exit feature can be 
switched on or off, see “Activating 
easy-entry/exit feature” (
page 143).
When the SmartKey is inserted in the start-
er switch and the driver’s door is closed, 
the steering wheel returns to the last set 
position.When exiting the vehicle with the 
easy-entry/exit feature activated, the 
steering wheel tilts upwards when you
remove the SmartKey from the starter 
switch,
or
open the driver’s door with the 
SmartKey in starter switch 
position0or1.
Warning!G
You must make sure no one can become 
trapped or injured by the moving steering 
wheel when the easy-entry/exit feature is 
activated.
To stop steering wheel movement, do one of 
the following
Move steering column lever 
(
page 40).
Press memory position switch 
(
page 108).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle. 
Children could open the driver’s door an un-
intentionally activate the easy-entry/exit 
feature, which could result in an accident 
and/or serious personal injury.
i
If the current position for the steering 
wheel is in the uppermost tilt position, 
the steering wheel will no longer be 
able to move upward when the 
easy-entry/exit feature is activated. 
     
        
        Page 114 of 417

113 Controls in detail
Lighting
Locator lighting and night security illu-
mination
The locator lighting and the night security 
illumination are described in the “Control 
system section”, see (
page 139) and 
(
page 140).
Exterior rear view mirror lamps
If the vehicle is centrally unlocked in the 
darkness, the lamps in the exterior rear 
view mirrors come on.
If a door is opened, the lamp on this side 
goes out. If no doors are opened, the 
lamps will switch off:
after a maximum of 40 seconds 
immediately, when you switch on the 
ignition (
page 35)Fog lamps
Front fog lamps
Switch on the low beam headlamps 
(
page 110).
Pull out the exterior lamp switch to first 
stop.
The front fog lamps switch on.
The green indicator lamp‡ in the 
exterior lamp switch comes on 
(
page 110).
Push in the exterior lamp switch.
The front fog lamps switch off.
The green indicator lamp‡ in the 
exterior lamp switch goes out.
Warning!G
In low ambient lighting or foggy conditions, 
only switch from position UtoBwith 
the vehicle at a standstill in a safe location. 
Switching from UtoB will briefly 
switch off the headlamps. Doing so while 
driving in low ambient lighting conditions 
may result in an accident.
i
Fog lamps will operate with the parking 
lamps and/or low beam headlamps on. 
Fog lamps should only be used in con-
junction with low beam headlamps. 
Consult your State or Province Motor 
Vehicle Regulations regarding allow-
able lamp operation.
i
Fog lamps cannot be switched on with 
the exterior lamp switch in 
positionU. For switching on the fog 
lamps, turn the exterior lamp switch to 
positionB first. 
     
        
        Page 117 of 417

116 Controls in detail
Lighting
Interior lighting
The controls are located in the overhead 
control panel.
1Cargo compartment lamps
2Right reading lamp
3Rocker switch for automatic control 
system
4Left reading lampAutomatic control
Activating
Move rocker switch3 to center 
position. 
The interior lighting switches on in 
darkness when you
unlock the vehicle
open a door
remove the SmartKey from the 
starter switch
Additionally, entry lamps in the door 
trays will come on when you open 
a door.
The interior lighting switches off automati-
cally following an adjustable time delay.
For more information, see “Setting interior 
lighting delayed shut-off” (
page 141).Deactivating
Press the = symbol on rocker 
switch3.
The interior lighting and the entry 
lamps remain switched off in darkness, 
even when you
unlock the vehicle
open a door
remove the SmartKey from the 
starter switch
i
Leaving an interior light switch in the 
ON position for extended periods of 
time with the engine turned off could 
result in a discharged battery.
i
If the door remains open, the interior 
lamps switch off automatically after 
approximately five minutes. 
     
        
        Page 119 of 417
118 Controls in detail
Lighting
Cargo compartment lamps
Switching on and off
1Switch for cargo compartment lamps
Press button ò to switch cargo 
compartment lamps2 on/off.2Cargo compartment lampsSwitching on and off with the tailgate 
open
If the tailgate should remain open for a 
longer period of time, the cargo compart-
ment lamps can be switched off separate-
ly.
1Door lock
2Lock cylinder