35 Getting started
Unlocking
SmartKey with KEYLESS-GO*
Vehicles equipped with the KEYLESS-GO
feature are supplied with a SmartKey with
integrated KEYLESS-GO function and a
removable KEYLESS-GO start/stop
button.With the KEYLESS-GO start/stop button
inserted and the SmartKey with
KEYLESS-GO present in the vehicle, press-
ing the KEYLESS-GO start/stop button
without the brake pedal depressed cor-
responds to the various starter switch
positions (
page 36)
with the brake pedal firmly depressed
will start the engine (
page 49)
If you wish or should there be a need to
insert the SmartKey with KEYLESS-GO in
the starter switch, the start/stop button
can be easily removed by pulling it out of
the starter switch.
!If the SmartKey cannot be turned in the
starter switch, the battery may not be
sufficiently charged.
Check the battery and charge it if
necessary (
page 440).
Get a jump start (
page 470).
To prevent accelerated battery dis-
charge or a completely discharged bat-
tery, always remove the SmartKey from
the starter switch when the engine is
not in operation.
iIf you firmly depress the brake pedal
while pressing the KEYLESS-GO
start/stop button, the engine starts
automatically.
iThe KEYLESS-GO start/stop button
does not need to be removed from the
starter switch when you leave the vehi-
cle. However, always take the
SmartKey with KEYLESS-GO with you
when you leave the vehicle. As long as
the SmartKey with KEYLESS-GO is in
your vehicle, the vehicle’s electrical
systems can be switched on or the
engine can be started using the
KEYLESS-GO start/stop button.Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
36 Getting startedUnlocking1KEYLESS-GO start/stop button
2Starter switchKEYLESS-GO start/stop button1USA only
2Canada onlyThe SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the automatic transmission
is set toP.
Do not depress the brake pedal.
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status0 (as with
SmartKey removed).
Position 1
Press the KEYLESS-GO start/stop
button once.
This supplies power for some electrical
consumers, such as seat adjustment.Ignition (or Position 2)
Press the KEYLESS-GO start/stop
button twice.
All lamps in the instrument cluster
come on. If a lamp in the instrument
cluster fails to come on when the igni-
tion is switched on, have it checked
and replaced if necessary. If a lamp in
the instrument cluster remains on after
starting the engine or comes on while
driving, refer to “Lamps in instrument
cluster” (
page 382).
iIf you now press the KEYLESS-GO
start/stop button
once more, the ignition (position2)
is switched on
twice more, the power supply is
again switched off
37 Getting started
Unlocking
For information on starting the engine
using the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(page 50).iIf you now press the KEYLESS-GO
start/stop button once more, the
power supply is again switched off.iWhen you switch on the ignition, the
indicator and warning lamps (except
high beam headlamp indicator lamp
and turn signal indicator lamps unless
activated) in the instrument cluster
come on. The indicator and warning
lamps (except high beam headlamp in-
dicator lamp and turn signal indicator
lamps if activated) should go out when
the engine is running. This indicates
that the respective systems are
operational.
42 Getting startedAdjustingThe adjustment handle for manual steering
wheel adjustment is located under the
steering column.
To unlock the steering column, pull
handle out to its stop limit.
Move steering wheel to the desired
position.
Make sure your legs can move freely
and that all the displays (including
malfunction and indicator lamps) on
the instrument cluster are clearly
visible.
Push handle back to its original posi-
tion to relock the steering column.
The steering column is once again
locked into position.
Make sure the steering column is se-
curely locked by trying to move the
steering wheel up and down, in and out
before driving off.Steering wheel adjustment, electrical*!Do not drive the vehicle until you have
properly locked the steering column.
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of
the vehicle.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch or the SmartKey with KEYLESS-GO*
removed from the vehicle, the steering
wheel adjustment feature can be operated
when the driver’s door is open. Therefore,
do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
50 Getting startedDrivingStarting with the SmartKey
Make sure the automatic transmission
is set toP.
The transmission gear positionP
appears in the multifunction display.
Do not depress accelerator.
Turn the SmartKey in the starter switch
to position3 (
page 34) and hold until
the engine starts.
For information on turning off the engine
with the SmartKey, see “Turning off en-
gine” (
page 62).Starting with KEYLESS-GO*
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button in the
starter switch.
The SmartKey with KEYLESS-GO must be
located in the vehicle.
KEYLESS-GO start/stop button1USA only
2Canada only
Make sure the KEYLESS-GO start/stop
button1 is inserted in the starter
switch (
page 35).
Make sure the automatic transmission
is set toP.
Depress the brake pedal during the
starting procedure. Do not depress ac-
celerator.
iYou can also use the “touch-start”
function. Turn the SmartKey to
position3 and release it again immedi-
ately. The engine then starts automati-
cally.
Warning!
G
As long as the SmartKey with KEYLESS-GO
is in your vehicle, the vehicle can be started.
Therefore, never leave children unattended
in the vehicle, as they could otherwise acci-
dentally start the engine.
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle.
51 Getting started
Driving
Press KEYLESS-GO start/stop
button1 once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off with
KEYLESS-GO*” (
page 63).Starting difficulties
If the engine does not start as described,
carry out the following steps:
If you are starting the engine with the
SmartKey, turn SmartKey in starter
switch to position0 and repeat starting
procedure.
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better
detection of the SmartKey with
KEYLESS-GO*.
Or:
Remove KEYLESS-GO* start/stop but-
ton from starter switch.
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Repeat the starting procedure
(page 49). Remember that extended
starting attempts can drain the battery.
Get a jump start (
page 470).
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.
iIf you wish to start the engine using the
SmartKey instead of the KEYLESS-GO
feature, remove the KEYLESS-GO*
start/stop button from starter switch
(page 35).
53 Getting started
Driving
After a cold start, the automatic transmis-
sion shifts at a higher engine revolution.
This allows the catalytic converter to reach
its operating temperature earlier.For more information, see “Driving instruc-
tions” (
page 299).
For information on off-road driving, see
“Off-road driving” (
page 306).
!If you hear a warning signal and the
message
Release parking brake
appears in the multifunction display
when driving off, you have forgotten to
release the parking brake.
Release the parking brake.Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.
Warning!
G
It is dangerous to shift the automatic trans-
mission out ofP orN if the engine speed is
higher than idle speed. If your foot is not
firmly on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.!Shift automatic transmission to
positionPorR only when the vehicle is
stopped in order to avoid damaging the
transmission.!Do not run cold engine at high engine
speeds. Running a cold engine at high
engine speeds may shorten the service
life of the engine.
!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake and drivetrain wear.
57 Getting started
Driving
Rear window wiper/washer
The combination switch is located on the
left of the steering column.Combination switch1Rear window wiper switch
2Wiping rear window with washer fluid
3Intermittent wiping
4Rear window wiper off
5Wiping rear window with washer fluid
!If anything blocks the windshield wip-
ers (leaves, snow, etc.), switch them off
immediately.
For safety reasons, stop the vehicle in
a safe location and
turn off the engine by turning
the SmartKey to position0 and
withdraw SmartKey from starter
switch
or
turn off the engine by pressing
the KEYLESS-GO* start/stop
button and open the driver’s
door (with the driver’s door
open, starter switch is in
position0, same as with
SmartKey removed from starter
switch)
before attempting to remove any
blockage.
Remove blockage.
Turn the windshield wipers on
again.
If windshield wipers fail to function at
all in switch positionI,
set the combination switch to the
next highest wiper speed
have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Light Truck Center