Page 57 of 480

56 Getting startedDriving
Problems while driving
The engine runs erratically and misfires
An ignition cable may be damaged.
The engine electronics may not be op-
erating properly.
Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.
!If anything blocks the windshield
wipers (leaves, snow, etc.), switch
them off immediately.
For safety reasons, stop the vehicle
in a safe location and
remove the SmartKey from the
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, the starter switch is in po-
sition 0, same as with the
SmartKey removed from the
starter switch)
before attempting to remove any
blockage.
Remove blockage.
Turn the windshield wipers on
again.
If the windshield wipers fail to function
at all in switch positionI,
set the combination switch to the
next higher wiper speed
have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Center
Page 58 of 480
57 Getting started
Driving
The coolant temperature gauge is
above 248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle as soon as possible in
a safe location and turn off the engine.
Allow engine and coolant to cool.
Check the coolant level and add cool-
ant if necessary (
page 278).In case of accident
If the vehicle is leaking gasoline:
Do not start the engine under any cir-
cumstances.
Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:
Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the
major assemblies
fuel system
engine mount:
Start the engine in the usual manner.
Page 59 of 480

58 Getting startedParking and lockingYou have now completed your first drive.
You have properly stopped and parked
your vehicle. End your drive as follows.Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle.
Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
To reduce the risk of personal injury as a re-
sult of vehicle movement, before
turning off
the engine and leaving the vehicle always:
Keep right foot on brake pedal.
Firmly depress parking brake pedal.
Move the gear selector lever to
positionP.
Slowly release brake pedal.
When parked on an incline, turn front
wheels towards the road curb.
Turn the SmartKey in the starter switch
to position0 and remove the SmartKey
from the starter switch, or press the
start/stop button (vehicles with
KEYLESS-GO*).
Take the SmartKey or the SmartKey with
KEYLESS-GO* and lock vehicle when
leaving.
Page 60 of 480

59 Getting started
Parking and locking
Parking brake
1Parking brake pedal
2Release handle
Step firmly on parking brake pedal1.
When the engine is running, the indica-
tor lamp;(USA only) or3
(Canada only) in the instrument cluster
will be illuminated.
Switching off headlamps
Turn the exterior lamp switch to posi-
tion M (
page 53).
For more information, see “Exterior lamp
switch” (
page 123).
Warning!
G
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* 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. Children
could release the parking brake and/or
move the gear selector lever from
positionP, either of which could result in an
accident and/or serious injury.
Warning!
G
Getting out of your vehicle with the gear se-
lector lever not fully engaged in positionP is
dangerous. Also, when parked on an incline,
positionP alone may not prevent your vehi-
cle from moving, possibly hitting people or
objects.
Always set the parking brake in addition to
shifting to positionP (
page 164).
When parked on an incline, also turn front
wheels towards the road curb.
Page 61 of 480

60 Getting startedParking and lockingTurning off the engine
Place the gear selector lever in
positionP.
Apply the parking brake (
page 59).Turning off with the SmartKey
Turn the SmartKey in the starter switch
to position0 (
page 36).
Remove the SmartKey from the starter
switch.
The immobilizer is activated.Turning off with KEYLESS-GO*
Place the gear selector lever inP.
Press the KEYLESS-GO start/stop but-
ton (
page 37) to turn off the engine.
With the driver’s door closed, the start-
er switch is now in position1. With the
driver’s door opened, the starter switch
is set to position0, same as SmartKey
removed from starter switch
(
page 36).
iAlways set the parking brake in addi-
tion to shifting to positionP.
On slopes, turn the front wheels to-
wards the road curb.
iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.iWith the SmartKey removed and the
driver’s door open, a warning sounds if
the vehicle’s exterior lamps are not
switched off.
Page 62 of 480

61 Getting started
Parking and locking
Releasing seat belts
Press the seat belt release button
(page 47).
Allow the retractor to completely re-
wind the seat belt by guiding the latch
plate.
Locking
!Make sure the seat belt retracts fully so
that the seat belt and/or latch plate
cannot get caught or pinched in the
door or in the seat mechanism. This
can damage the seat belt and impair
the effectiveness of the seat belt,
and/or cause damage to the door
and/or door trim panel. Such damage
is not covered by the Mercedes-Benz
Limited Warranty.
Damaged seat belts must be replaced.
Contact an authorized Mercedes-Benz
Light Truck Center.
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
openings when closing the doors. Be espe-
cially careful when small children are
around.
Before closing doors, make sure that there
is no possibility of someone getting caught
in a door during closing.Warning!
G
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* 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. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
iIf you hear a warning signal you have
either
forgotten to turn off the lights be-
fore opening the driver’s door
In addition the message
Turn off
lamps
appears in the multifunction
display.
or
tried to turn off the engine while the
gear selector lever is not inP
In addition the message
Gear se-
lector lever to P
appears in the
multifunction display.
Turn off the lights or place the gear se-
lector lever inP.
Page 63 of 480
62 Getting startedParking and locking
Exit the vehicle and close the doors and
the trunk.
Locking with the SmartKey
Press the lock button‹on the
SmartKey (
page 34).
With the trunk and all doors closed, all
turn signal lamps flash three times. The
locking knobs on the doors move
down. The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 96).Locking with KEYLESS-GO*
1Lock button
Press lock button1 on a door handle
or the lock button on the trunk lid
(page 105).
With the trunk and all doors closed, the
turn signal lamps flash three times. The
locking knobs on the doors move
down. The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 96).
iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.
Page 64 of 480
63 Safety and Security
Occupant safety
Panic alarm
Driving safety systems
Anti-theft systems