Page 123 of 416

123 Controls in detail
Control system
Control system
The control system is activated as soon as
the SmartKey in the starter switch is
turned to position1. The control system
enables you to
call up information about your vehicle
change vehicle settings
For example, you can use the control sys-
tem to find out when your vehicle is next
due for service, to set the language for
messages in the instrument cluster display
and much more.
The control system relays information to
the multifunction display.
Multifunction display
1Trip odometer
2Main odometer
3Outside temperature
4Clock
1
5Current gear selector lever position
6Transfer case program mode
Warning!
G
A driver’s attention to the road and traffic
conditions must always be his /her primary
focus when driving.
For your safety and the safety of others, se-
lecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions per-
mit it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
1See separate operating instructions for the
COMAND system for clock setting.
Page 320 of 416
320 Practical hintsWhat to do if …Display
Possible cause
Possible solution
Ê
TRUNK OPEN!
This message will appear whenever the
tailgate is open.
Close the tailgate.
G
VISIT WORKSHOP!
DISPLAY MALFUNCTION:
The instrument cluster display is malfunc-
tioning.
Some systems themselves may also have
failed.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
±
VISIT WORKSHOP!
DISPLAY MALFUNCTION:
Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:
Coolant temperature display
Tachometer
Cruise control display
Have the electronic systems checked
by an authorized Mercedes-Benz Light
Truck Center.
W
WASHER FLUID
CHECK LEVEL!
The fluid level has dropped to about
1/3
of total reservoir capacity.
Add washer fluid (
page 380).
Page 383 of 416

383 Technical terms
GAWR
(G
ross A
xle W
eight R
ating)
(
page 271)
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the gear selector le-
ver.
GPS
(Global P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
GVW
(G
ross V
ehicle W
eight)
(
page 272)
GTW
(Gross T
railer W
eight)
(
page 271)GVWR
(G
ross V
ehicle W
eight R
ating)
(
page 272)
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
engine temperature and fuel gauge.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
Kilopascal (kPa)
(page 272)
Line of fall
The direct line that an object moves
downhill when influenced by the force
of gravity alone. Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
Maintenance System (U.S. vehicles)
Maintenance service indicator in the
speedometer display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System tracks distance driven and the
time elapsed since your last mainte-
nance service, and calls for the next
maintenance service accordingly.
Maximum load rating
(
page 272)
Maximum loaded vehicle weight
(page 272)
Maximum tire inflation pressure
(page 272)