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 102 of 417

101 Controls in detail
Seats
When entering the vehicle, with the
easy-entry/exit feature activated, the
steering wheel will return to its last set po-
sition when you
close the driver’s door with the ignition
switched on,
or
insert the SmartKey into the starter
switch with the driver’s door closed.Removing and installing front seat
head restraints
For more information on head restraint ad-
justment, see the “Getting started” section
(
page 39).
Front seat head restraints
1Switch
Removing front seat head restraint
Press switch1 upwards and hold until
the head restraint is fully extended.
Pull head restraint out.
Warning!G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the head re-
straint supports the back of the head at eye
level. This will reduce the potential for injury
to the head and neck in the event of an ac-
cident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Do not interchange head restraints from
front and rear seat.
i
Tilt the seat backrest rearward for eas-
ier removal and installation of the head
restraints.
Page 103 of 417

102 Controls in detail
Seats
Installing front seat head restraint
Press switch1 upwards and hold for
about five seconds.
Press the head restraint down until it
engages.
Adjust head restraint to the desired
position.Synchronizing head restraints and seat
adjustment fore and aft for front seats
If the power supply was interrupted (bat-
tery disconnected or discharged), the head
restraints and the seat adjustment fore
and aft are no longer adjusted
automatically.
The head restraints and the seat adjust-
ment fore and aft must be resynchronized:
Switch on the ignition (page 35).
Move the seat completely forward
(
page 38) and the head restraint fully
down (
page 39) and hold the switch-
es for approximately one second.
Rear seat head restraints
Warning!G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the center of
the head restraint supports the back of the
head at eye level. This will reduce the poten-
tial for injury to the head and neck in the
event of an accident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Page 104 of 417
103 Controls in detail
Seats
Head restraint height
Manually adjust the height of the head re-
straint.
Push or pull on the head restraint.Removing and installing rear seat head
restraintsRemoving rear seat head restraints
Pull out head restraint with both hands.
Installing rear seat head restraints
Insert the head restraint and push it
down to the stop.
Ensure proper head restraint positioning
(
page 39).
Warning!G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the center of
the head restraint supports the back of the
head at eye level. This will reduce the poten-
tial for injury to the head and neck in the
event of an accident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Do not interchange head restraints from
front and rear seat.
i
The head restraint(s) should be stored
in a secure place.