Page 837 of 4133

33 Getting started
Unlocking
Steering lock positions
0For removing key
The steering is locked when the key is
removed from the steering lock. If
necessary, move steering wheel
slightly to allow the locking mechanism
to engage.
1Unlocking steering
Power supply to some electrical con-
sumers, such as seat adjustment.
2Ignition (power supply for all electrical
consumers) and driving position
3Starting position
Warning!
G
When leaving the vehicle, always remove the
key from the steering lock and lock the vehi-
cle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehi-
cle. Unsupervised use of vehicle equipment
may cause an accident and / or serious per-
sonal injury.iThe key can only be withdrawn in
position0.
If necessary, move steering wheel
slightly to allow the key to be turned
clockwise to position1.
A warning sounds when the driver’s
door is opened and the key is in steer-
ing lock position0 or1.
The key can only be removed from the
steering lock with the gear selector le-
ver in positionP.
!To prevent accelerated battery dis-
charge and a possible dead battery, al-
ways remove the key from the steering
lock when the engine is not in opera-
tion.
Page 851 of 4133

47 Getting started
Driving
Starting difficulties
If the engine does not start as described,
carry out the following steps:
Turn key in starter to position0 and re-
peat starting procedure.
Remember that extended starting at-
tempts can drain the battery.
Get a jump start (
page 281).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.
Notify an authorized Mercedes-Benz
Light Truck Center.Parking brake
1Parking brake pedal
2Release handle
Release the parking brake by pulling on
handle2.
The indicator lampÉ in the instru-
ment cluster goes out.
Driving
Depress the brake pedal.
Place the gear selector lever in
positionD orR.
Release the brake pedal.
Carefully depress the accelerator
pedal.
Warning!
G
When leaving the vehicle, always remove the
key from the steering lock and lock the vehi-
cle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehi-
cle. Children could release the parking
brake, which could result in an accident
and / or serious personal injury.
iWait for the gear selection process to
complete before setting the vehicle in
motion.
Page 887 of 4133

83 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
Removing the key from the steering lock
activates the immobilizer.
Deactivating
Turning the key in the steering lock to
position2 (
page 33) deactivates the im-
mobilizer.
Anti-theft alarm
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone:
opens a door
opens the liftgate
opens the hood
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
unlocking and opening the driver’s
door with the mechanical keyArming the alarm system
The alarm system is armed after locking
the vehicle with the remote control. The
turn signal lamps flash three times to indi-
cate that the alarm system is activated. A
red lamp in the center console will flash af-
ter approximately 10 seconds when the
alarm system is completely armed
(
page 27).
iIn case the engine cannot be started
(vehicle’s battery is in order), the sys-
tem is not operational. Contact an au-
thorized Mercedes-Benz Light Truck
Center or call 1-800-FOR-MERCedes
(in the USA), or 1-800-387-0100 (in
Canada).
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid* sys-
tem (
page 171) provided Tele Aid
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.
Page 894 of 4133

90 Controls in detailLocking and unlocking
Loss of remote control with folding key
If you lose a remote control or the folding
key, you should do the following:
Have the remote control deactivated
by an authorized Mercedes-Benz Light
Truck Center.
Report the loss of the remote control or
the folding 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 handle
Pull on door handle2.
If a door was locked, locking knob1
will move up.
!If you can no longer lock or unlock the
vehicle with the remote control, then
the batteries in the remote control are
discharged, the remote control is mal-
functioning or the vehicle battery is
drained.
Check the batteries in the remote
control and replace them if neces-
sary (
page 262).
Use the folding key to unlock or
lock the doors and the liftgate.
Check the vehicle battery
(page 278).
Synchronize the remote control
(page 263).
If the remote control is malfunctioning,
contact an authorized Mercedes-Benz
Light Truck Center.
Page 917 of 4133

113 Controls in detail
Lighting
Automatic control
Activating automatic control
Bring the rocker switch to center
position4.
Interior lamps (except cargo compart-
ment lamp) are switched on in dark-
ness, when you
unlock the vehicle
open a door
remove the key from the steering
lock
In addition, the entry / exit lamps in the
door trays will come on when you open
a door.
When all doors are closed and no key is
inserted in the steering lock, the interi-
or lamps are switched off after a brief
delay.Deactivating automatic control
Press lower part3 of rocker switch.
The interior lighting and the entry / exit
lamps remain switched off in darkness,
even when you
unlock the vehicle
open a door
remove the key from the steering
lockManual control
Switching on front interior lamps
Press on lamp lens1 or2.
The respective lamp switches on.
Switching off front interior lamps
Press on lamp lens1 or2 again.
The respective lamp switches off.
Operating rear interior lighting with
rocker switch
Press on upper part5 of rocker
switch.
The rear interior lighting goes on.
iIf the door remains open, the interior
lamps (except cargo compartment
lamp) switch off automatically after ap-
proximately 30 minutes.
iIf a lamp is switched on manually, it will
not go out automatically. This could
cause the battery to become dis-
charged.
Page 919 of 4133
115 Controls in detail
Lighting
Switching on continuous cargo
compartment lamp
Slide the switch to position2.
The cargo compartment lamp is
switched on continuously.Automatic control
Slide the switch to position3.
The cargo compartment lamp is
switched on and off by opening or clos-
ing the liftgate.
iTo prevent the vehicle battery from be-
ing discharged, make sure the switch is
not in position2 when leaving the ve-
hicle.
Page 937 of 4133

133 Controls in detail
Good visibility
Rear window defroster
The rear window defroster uses a large
amount of power. To keep the battery
drain to a minimum, switch off the defrost-
er as soon as the rear window is clear. The
defroster is automatically deactivated
after approximately 6 to 17 minutes of
operation depending on the outside tem-
perature.
Activating
Switch ignition on.
Press buttonF (
page 135).
The indicator lamp on the button
comes on.
Deactivating
Press buttonF again.
The indicator lamp on the button goes
out.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts flashing, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.
Page 944 of 4133

140 Controls in detailAutomatic climate control
Residual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
Turn the key in the steering lock to
position0 or1 (
page 33).
Press button° (
page 135).
The indicator lamp on button°
comes on.Deactivating
Press button°.
The indicator lamp on button°
goes out.
!If the °button on the automatic
climate control panel starts to flash,
this indicates that the air conditioning
system is losing refrigerant. The com-
pressor has turned itself off. The air
conditioning cannot be turned on
again.
Have the air conditioning system
checked at the nearest authorized
Mercedes-Benz Light Truck Center.
iHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set in the
climate control. The blower will run at
lower speed regardless of the air vol-
ume control setting.
iThe residual heat is automatically
turned off:
when the ignition is switched on
after about 30 minutes
if the coolant temperature is too
low
if the battery voltage drops