Page 148 of 360

148 Controls in detailGood visibilityActivating exterior rear view mirror
parking position
Follow these steps to activate the mirror
parking position so that the passen-
ger-side exterior rear view mirror will be
turned downward to the stored position.
Make sure you stored a parking posi-
tion for the passenger-side exterior
rear view mirror (
page 99).
Make sure that the
MIRROR SETTING
WHEN PARKING
function, found under
the
CONVENIENCE
submenu in the con-
trol system, is switched on
(
page 130).
Switch on ignition.
Press button3 (
page 38) for the pas-
senger-side exterior rear view mirror.
Place the gear selector lever in reverse
gear R.
The passenger-side exterior rear view
mirror will be turned downward to the
stored position.The exterior rear view mirror returns to its
previously stored driving position:
10 seconds after you put the gear se-
lector lever out of position R
immediately once you exceed a vehicle
speed of approx. 6 mph (10 km/h)
immediately when you press the button
for driver’s side mirror (
page 38)
Headlamp cleaning system
The switch is located to the left of the
steering column.
1Headlamp washer switch
Switch on ignition.
Press switch1.
The headlamps will be cleaned with a
high-pressure water jet.
Page 149 of 360
149 Controls in detail
Good visibility
Sun visors
The sun visors protect you from sun glare
while driving.
1Sun visor
2Mounting
Swing sun visors 1 down to protect
against sun glare.
If sunlight enters through a side win-
dow, disengage visor 1 from inner
mounting 2 and pivot it to the side.3Mirror cover
4Mirror lamp
Make sure that the ignition is switched
on and that the sun visor is engaged in
mounting 2.
Open mirror cover3.
Mirror lamp4 switches on.
Warning!
G
Do not use the vanity mirror while driving.
Keep the mirrors in the sun visors closed
while vehicle is in motion. Reflected glare
can endanger you and others.
Page 167 of 360

167 Controls in detail
Driving systems
Warning indicator
Visual signals indicate to the driver the rel-
ative distance between the sensors and an
obstacle. The warning indicator is located
next to the tailgate.Warning indicatorAs your vehicle approaches an object, one
or more segments will light up, depending
on the distance. When the sixth segment
lights, you have reached the minimum dis-
tance.An intermittent acoustic warning will
sound as the fourth segment lights up and
a constant acoustic warning lasting a max-
imum of three seconds will sound for the
sixth segment.
Rear Park Assist malfunction
There is a malfunction in the Rear Park As-
sist system if:
a low warning tone sounds while the
vehicle is reversing
The Rear Park Assist sensors are dirty
or malfunctioning.
Clean the Rear Park Assist system
sensors (
page 234).
Switch on the ignition again.
no segments light up and no warning
sounds
The Rear Park Assist is malfunctioning.
Have the Rear Park Assist system
checked by an authorized
Mercedes-Benz Light Truck Center
as soon as possible.
Malfunction may also be caused by inter-
ference from other radio or ultrasonic sig-
nals.
Check the Rear Park Assist operation
at another location to rule out interfer-
ence from outside radio or ultrasonic
signals.
Page 217 of 360

217 Operation
Engine compartment
Closing
Lower hood and let it drop into lock
from a height of approximately 0.7 ft
(20 cm).
The hood will lock audibly.
Check to make sure that the hood is
fully closed.
If you can raise the hood at a point
above the headlamps, then it is not
properly closed. Open it again and let it
drop with somewhat greater force.
Engine oil
The amount of oil your engine needs will
depend on a number of factors, including
driving style. Higher oil consumption can
occur when
the vehicle is new
the vehicle is driven frequently at high-
er engine speeds.
Engine oil consumption checks should only
be made after the vehicle break-in period.
Warning!
G
The engine is equipped with a transistorized
ignition system. Because of the high voltage,
it is dangerous to touch any components (ig-
nition coils, spark plug sockets, diagnostic
socket) of the ignition system
with the engine running
while starting the engine
if ignition is “on” and the engine is
turned manually
Warning!
G
Be careful that you do not close the hood on
anyone.!Do not push the hood closed manually,
as this could damage it.
iDo not use any special lubricant addi-
tives, as these may damage the drive
assemblies. Using special additives not
approved by Mercedes-Benz will re-
strict your warranty entitlement.
More information on this subject is
available at any Mercedes-Benz Light
Truck Center.
Page 218 of 360

218 OperationEngine compartmentChecking engine oil level
When checking the oil level the vehicle
must
be parked on level ground
be at normal operating temperature
have been stationary for at least five
minutes with the engine turned off
With the operating system
You can check the engine oil level on the
multifunction display.
Turn the key in the starter switch to
position2.
The standard display (
page 111) should
appear in the multifunction display.
Press button
k
or
j
on the
steering wheel until the following mes-
sage is seen in the multifunction dis-
play:
ENGINE OIL LEVEL - MEASUREMENT IN
PROCESS! MEASUREMENT CORRECT ONLY
IF VEH. LEVEL
After about three seconds, this mes-
sage is displayed:
ENGINE OIL LEVEL –
MEASURING NOW!
One of the following messages will sub-
sequently appear in the indicator:
ENGINE OIL LEVEL – OK
ENGINE OIL LEVEL – ADD 1.0 QUART
(1.0 LITER)!
ENGINE OIL LEVEL – ADD 1.5 QUART
(1.5 LITER)!
ENGINE OIL LEVEL – ADD 2.0 QUART
(2.0 LITER)!
Other display messages
If there is excessive engine oil with the en-
gine at normal operating temperature, the
following message will appear: ENGINE OIL LEVEL – REDUCE OIL LEVEL!
Have excess oil siphoned.
If the key is not turned to position2 in the
starter switch:
ENGINE OIL LEVEL – SWITCH ON IGNITION!
Switch on the ignition.
iIf you want to cancel the measuring
process, press the
k
or
j
but-
tons on the multifunction steering
wheel.
!Excessive oil must be siphoned or
drained off. It could cause damage to
the engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.
The oil dipstick tube allows for draining
of oil by using a suction device
(page 219).
Page 230 of 360

230 OperationMaintenance
MaintenanceWe strongly recommend that you have
your vehicle serviced by your authorized
Mercedes-Benz Light Truck Center, in ac-
cordance with the Service Booklet at the
times called for by the FSS (Flexible Ser-
vice System).
Failure to have the vehicle maintained in
accordance with the Service Booklet at the
designated times /mileage called for by
the FSS may result in vehicle damage not
covered by the Mercedes-Benz Limited
Warranty.
FSS will notify you when your next service
is due.
Approximately one month before your next
service is due, one of the following mes-
sages will appear in the multifunction dis-
play while you are driving or when you
switch on the ignition (example service A):SERVICE A IN XX DAYS
SERVICE A IN XX MILES (KM)
SERVICE A DUE NOW!
The type of service due is indicated in the
speedometer display field:9
Minor service (A)
½
Major service (B)
Clearing the service indicator
The service indicator is automatically
cleared
after 10 seconds when you switch on
the ignition or when reaching the ser-
vice threshold while driving
after 30 seconds, once the suggested
service term has passed
You can also clear it yourself.1Reset knob
Press reset knob1.
Service term exceeded
If you have exceeded the suggested ser-
vice term, you will see the following mes-
sage in the multifunction display:SERVICE A EXCEEDED BY XX DAYS
SERVICE A EXCEEDED BY XX MILES (KM)The Mercedes-Benz Light Truck Center will
reset the service indicator following a com-
pleted service.
iThe interval between services depends
on your driving habits. A gentle driving
style, moderate engine speeds and the
avoidance of short distance trips will
lengthen the interval between services.
Page 231 of 360

231 Operation
Maintenance
Calling up the service indicator
Switch ignition on.
The standard display of the control sys-
tem appears (
page 111).
Press button
k
or
j
on the mul-
tifunction steering wheel until the FSS
indicator appears in the multifunction
display.
Resetting the service indicator
In the event that the service on your vehi-
cle is not carried out by an authorized
Mercedes-Benz Light Truck Center, you
can reset the service indicator yourself.
Switch ignition on.
The standard display of the control sys-
tem appears (
page 111).
Press button
k
or
j
on the mul-
tifunction steering wheel until the FSS
indicator appears in the multifunction
display.
Press the reset knob (
page 230) for
about four seconds.
This message appears in the tachome-
ter:
DO YOU WANT TO RESET SERVICE INTER-
VAL? CONFIRM BY PRESSING R
To confirm, hold down the reset knob
(page 230) until you hear a signal.
The service indicator now displays the
reset interval.
iIf the vehicle battery is disconnected,
the days of disconnection will not be in-
cluded in the count shown by the ser-
vice indicator. To arrive at the true
service deadline, you will need to sub-
tract these days from the days shown
in the service indicator.
Do not confuse the service indicator
with the engine oil level indicator
:
.
iIf the service indicator was inadvertent-
ly reset, have a Mercedes-Benz Light
Truck Center correct it.
Only reset if the proper service has
been performed. Resetting the system
without performing proper service as
called for by the FSS will cause the FSS
to incorrectly determine the next ser-
vice interval which will result in engine
damage not covered by the Mer-
cedes-Benz Limited Warranty.
Page 243 of 360

243 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
?
The yellow “CHECK ENGINE”
malfunction indicator lamp
comes on while driving.
There is a malfunction of:
The fuel management system
The ignition system
The emission control system
Systems which impact emissions
Such malfunctions may result in excessive
emissions values and may switch the engine
to its limp-home (emergency operation)
mode. Serious damage can occur to the
emission system.
Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Light Truck Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics sys-
tem. It allows the accurate identifica-
tion of system malfunctions through
the readout of diagnostic trouble
c o d e s . I t i s l o c a t e d n e a r t h e h o o d l o c k
release on the upper left of footwell.
The fuel cap is not closed tightly.
Check the fuel cap.
Your gas tank is empty.
After refuelling, start the engine three
or four times in succession. The
limp-home mode is canceled.
<
The red seat belt warning lamp
blinks for a brief period after
starting the engine.
The warning lamp reminds you to fasten seat
belts.
Fasten your seat belt.
The yellow fuel tank reserve warning lamp
illuminates while driving.
The fuel level has gone below the reserve
mark.
Refuel at the next gas station.
Also note the messages in the multi-
function display (
page 246).