Page 116 of 585

115 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Grasp an outside door handle.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of
unlocking if
neither a door nor the tailgate is
opened
the central locking switch is not
activatedGlobal locking
Press the lock button on an outside
door handle (
page 68).
With the tailgate and all doors closed,
the 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 with
KEYLESS-GO so when you grasp the
driver’s door handle only the driver’s door
and the fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 112)
flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:
Unlocking driver’s door and fuel filler
flap
Grasp the driver’s outside door handle.
All turn signal lamps flash once. The
locking knob in the driver’s door moves
up. The anti-theft alarm system is dis-
armed.
i
If the vehicle has been parked for more than
72 hours, you must pull an outside door handle
in order to activate the KEYLESS-GO function.
i
The vehicle could be inadvertently unlocked
if the SmartKey with KEYLESS-GO is within 3 ft
(1 m) of the vehicle and
an outside door handle is splashed with
water
or
you attempt to clean an outside door handle
Page 117 of 585

116 Controls in detailLocking and unlockingGlobal unlocking
Grasp any outside door handle other
than the driver’s outside door handle.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
Global locking
Press the lock button on an outside
door handle (
page 68).
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 buttonsŒ and‹
simultaneously for about 5 seconds
until battery check lamp5
(page 112) flashes twice.Checking the batteries
Press button‹orŒ.
Battery check lamp5 (
page 112)
comes on briefly to indicate that the
SmartKey with KEYLESS-GO batteries
are in order.
!
If you can no longer lock or unlock the
vehicle with the SmartKey with KEYLESS-GO, the
batteries in the SmartKey are discharged, the
SmartKey with KEYLESS-GO is malfunctioning or
the vehicle battery is drained.
Check the batteries in the SmartKey with
KEYLESS-GO (
page 116) and replace
them if necessary (page 480).
Use the mechanical key to unlock the
driver’s door (
page 475).
Lock the vehicle as described in the “Practi-
cal hints” section (
page 476).
Have the vehicle battery and the vehicle
battery connections checked (
page 507).
If the SmartKey with KEYLESS-GO is malfunc-
tioning, contact an authorized Mercedes-Benz
Light Truck Center.
i
If battery check lamp5 (
page 112) does
not come on briefly during check, the SmartKey
with KEYLESS-GO batteries are discharged.
Replace the batteries (
page 480).
You can obtain the required batteries at any
authorized Mercedes-Benz Light Truck Center.
i
If the batteries are checked within signal
range of the vehicle, pressing the
button‹orŒ will lock or unlock the
vehicle accordingly.
Page 118 of 585

117 Controls in detail
Locking and unlocking
Unlocking and opening the tailgate
(Vehicles with power tailgate*)
You can unlock and open the tailgate sep-
arately.
A minimum height clearance of 7.2 ft
(2.20 m) is required to open the tailgate.
The handle is located above the rear
license plate recess.
Pull on the handle
or
Press and hold buttonŠ on the
SmartKey with KEYLESS-GO until the
tailgate unlocks and opens.Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO or mechanical key, you
should do the following:
Have the SmartKey with KEYLESS-GO
deactivated by an authorized
Mercedes-Benz Light Truck Center.
Report the loss of the SmartKey with
KEYLESS-GO or the mechanical key
immediately to your car insurance
company.
Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Light
Truck Center will be glad to supply you
with a replacement.
!
The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance.
To stop the opening procedure, press
buttonŠ on the SmartKey. The tailgate stops
moving.
i
If the vehicle was previously centrally locked
with the SmartKey or SmartKey with
KEYLESS-GO*, the tailgate will lock automatical-
ly when closed (
page 121). The turn signals
will flash three times to confirm locking.
Page 120 of 585

119 Controls in detail
Locking and unlocking
Opening the tailgate
Opening the tailgate from the outside
A minimum height clearance of 7.0 ft
(2.13 m) is required to open the tailgate.
Vehicles with vehicle level control*:
Depending on the set vehicle level a mini-
mum height clearance of 7.2 ft (2.20 m) is
required to open the tailgate.
The handle is located above the rear
license plate recess.
Pull on the handle.
The tailgate opens slightly.
Pull tailgate upwards to open.
The tailgate can also be opened using the
SmartKey (
page 108).Opening the tailgate from the inside
electrically*
In vehicles with power tailgate* you can
open the tailgate from the inside if the ve-
hicle is stationary.
A minimum height clearance of 7.0 ft
(2.13 m) is required to open the tailgate.
Vehicles with vehicle level control*:
Depending on the set vehicle level a mini-
mum height clearance of 7.2 ft (2.20 m) is
required to open the tailgate.
i
Vehicles without KEYLESS-GO*:
The vehicle must be unlocked (
page 38).
Vehicles with KEYLESS-GO*:
When opening the tailgate, the vehicle is globally
unlocked.
!
The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance.
Vehicles with power tailgate*:
To stop the opening procedure, press
buttonŠ on the SmartKey. The tailgate stops
moving.
i
If the vehicle was previously centrally
locked, the tailgate will lock automatically after
closing it (
page 121). The turn signals will
flash three times to confirm locking.
Page 121 of 585

120 Controls in detailLocking and unlockingThe switch is located on the door control
panel.
1Remote tailgate switch with indicator
lamp
Pull remote tailgate switch1 until
tailgate begins to open.
The tailgate opens. The indicator lamp
in the remote tailgate switch comes on
and remains lit until the tailgate is
closed. While the tailgate is opening, an
acoustic signal sounds.Limiting opening height of tailgate*
Vehicles with power tailgate*:
The tailgate opening height can be limited
when transporting goods on a roof rack*
(e.g. presence of an MB roof cargo contain-
er*). When activated, the tailgate opens to
approximately 6.6 ft (2.00 m).
Activate the limiting opening height of
tailgate using the control system
(page 177).
Warning!
G
Maintain sight of the area around the rear of
the vehicle while operating the tailgate with
the door-mounted remote tailgate switch or
with the Šbutton on the SmartKey or
SmartKey with KEYLESS-GO*. Monitor the
opening procedure carefully to make sure
no one is in danger of being injured.
To interrupt the opening procedure, press or
pull the door-mounted remote tailgate
switch or press the Šbutton on the
SmartKey or SmartKey with KEYLESS-GO*.!
The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance. To stop the opening procedure,
press or pull remote tailgate switch1 or press
the Šbutton on the SmartKey or SmartKey
with KEYLESS-GO*. The tailgate stops moving.
i
The tailgate can also be opened using the
buttonŠ on the SmartKey (
page 108) or
SmartKey with KEYLESS-GO* (page 112).
Page 136 of 585

135 Controls in detail
Memory function*
The memory button and stored position
buttons are located on the entry side of
each front seat base.
MMemory button
1, 2, 3Stored position buttons
Switch on the ignition (
page 40).
or
Open the respective door.
Storing positions into memory
Adjust the seats (
page 43).
On the driver’s side, additionally adjust
the steering wheel (
page 48) and ex-
terior rear view mirrors (page 49) to
the desired positions.
Press memory buttonM.
Release memory buttonM and press
stored position1,2 or3 within
3 seconds.
All settings are stored to the selected
position.
Recalling positions from memory
Press and hold stored position
button1,2 or3 until the seat, steering
wheel and exterior rear view mirrors
have fully moved to the stored posi-
tions.
!
Do not operate the power seats using
memory buttonM if the seat backrest is in an
excessively reclined position. Doing so could
cause damage to front or rear seats.
Move seat backrest to an upright position first.
i
Releasing the stored position button stops
movement to the stored positions immediately.
Page 149 of 585

148 Controls in detailControl systemMultifunction steering wheel
The displays in the multifunction display
and the settings in the control system are
controlled by the buttons on the multifunc-
tion steering wheel.
Depending on the selected menu
(
page 150), pressing the buttons on the
multifunction steering wheel will alter what
is shown in the multifunction display.
The information available in the multifunc-
tion display is arranged in menus, each
containing a number of functions or sub-
menus.
The individual functions are then found
within the relevant menu (radio or
CD operations under
Audio
, for example).
These functions serve to call up relevant
information or to customize the settings
for your vehicle.
1
Multifunction displayOperating the control system
2
Telephone*:
Press buttonsto take a call
to dial
to redialtto end a call
to reject an incoming call
3
Selecting the submenu or setting
the volume:
Press buttonæup/to increaseçdown/to decrease
4
Voice Control*
1
1Vehicles without Voice Control: Button without
function.5
Moving within a menu:
Press buttonjfor next displaykfor previous display
6
Voice Control*
1
7
Menu systems:
Press buttonèfor next menuÿfor previous menu
Page 157 of 585
156 Controls in detailControl systemAMG menu
The main screen of the AMG menu shows
you the gear currently engaged as well as
the engine oil temperature.
Press buttonè orÿ repeatedly
until you see the AMG menu.
1Gear indicator
2Engine oil temperatureUse buttonsk orj to select the
following functions in the AMG menu:Vehicle supply voltage
Press buttonè orÿ repeatedly
until you see the AMG menu.
Press buttonj repeatedly until you
see the vehicle supply voltage.
1Gear indicator
2Vehicle supply voltage
i
This function is only available in AMG
vehicles.
i
The engine oil temperature symbol flashes if
the engine oil temperature has not yet reached
80°C. During this time, avoid driving at full
engine speed.
Function
Page
Vehicle supply voltage
156
RACETIMER
157
Overall analysis
158
Lap analysis
159
i
If the engine reaches the overspeed range in
the manual shift program, the menu will be
shown in red. In addition, you will see UP next to
gear indicator2 as a reminder to upshift.