instrument cluster MERCEDES-BENZ G500 2007 W463 Owner's Guide

175 Controls in detail
Differential locks
Switching differential locks on and off
The switches are located on the upper part
of the center console.
1Transfer case (center) differential lock
2Rear axle differential lock
3Front differential lock
4Engagement indicator lamps (yellow)
5Function indicator lamps (red)Switching differential locks on
Transfer case differential lock
Press switch1.
The yellow engagement indicator
lamp4 for the transfer case
differential lock comes on.
The ESP
® warning lampv comes
on.When the differential lock engagement
operation has been completed, the red
function indicator lamp5 comes on.
The message
ABS not available
differential locked
appears in the
multifunction display.
The ESP
® warning lampv and
the- indicator lamp in the
instrument cluster come on.
Once the transfer case differential lock
is switched on, you can now, if needed,

switch on rear axle differential
lock2
or

switch on rear axle differential
lock2 and front differential
lock3.
iThe differential locks can only be switched
on in the sequence1, 2, 3.
!To avoid damage to the transfer case and
differential locks:

Engage differential locks only at low speed
(walking speed, not more than 5 mph
[8 km/h]).

Do not engage differential locks if the driving
wheels are spinning due to lack of traction.

Do not engage differential locks on paved
roads.

176 Controls in detail
Differential locks
Rear axle differential lock
Press switch2.
The yellow engagement indicator
lamp4 comes on first, followed by the
red function indicator lamp5.
The rear axle differential lock is
switched on.
Front differential lock
Press switch 3.
The yellow engagement indicator
lamp4 comes on first, followed by the
red function indicator lamp5.
The front differential lock is switched
on.Switching differential locks off
There are two different methods to
disengage differential locks:

You can switch the differential locks off
in reverse order (3, 2, 1).

To switch off all differential locks at the
same time:
Press switch1.
The yellow engagement indicator
lamps4 go out first. The red
function indicator lamps5 go out
when the switching process has
been carried out in the differential.
To activate the ESP
®, BAS, and ABS
systems, drive again for 3 seconds using a
constant driving style.All messages in the multifunction display
disappear. The ESP
® warning lampv
and the- indicator lamp in the
instrument cluster go out.
iIf the red function indicator lamps5 do not
go out when the differential locks are disen-
gaged, bring vehicle to a stop and then continue
driving. Changing the vehicle load can help to
disengage locks.
Warning!G
Always remember to disengage the differen-
tial locks when returning to drive on paved
roads, see “A few words about differentials
and differential locks” (
page 174).

230 Controls in detail
Useful features
System self-check
Initially, after switching on the ignition,
malfunctions are detected and indicated
(the indicator lamps in the SOS button, the
Roadside Assistance button• and the
Information button¡ stay on longer
than 10 seconds or do not come on). The
message
Tele Aid inoperative appears
in the multifunction display.Emergency calls
An emergency call is initiated auto-
matically following an accident in which
the emergency tensioning devices (ETDs)
or air bags deploy.
An emergency call can also be initiated
manually by opening the cover next to the
interior rear view mirror labeled SOS, then
briefly pressing the button located under
the cover. See (
page 231) for
instructions on initiating an emergency call
manually.
Once the emergency call is in progress, the
indicator lamp on the SOS button will
begin to flash. The message
Connecting
call
appears in the multifunction display.
When the connection is established, the
message
Call connected appears in the
multifunction display. All information
relevant to the emergency, such as the
location of the vehicle (determined by the
GPS satellite location system), vehicle
model, identification number and color are
generated.
iWhen a Tele Aid call has been initiated,
the COMAND system audio is muted and the
selected mode (radio, CD etc.) pauses.
The optional cellular phone (if installed) inserted
in cradle switches off. If you must use this
phone, we recommend that you use it only with
the vehicle at a standstill in a safe location.
Remove the phone from the cradle and place the
call. The navigation system (if engaged) will con-
tinue to run. The display in the instrument cluster
is available for use, and spoken commands are
only available by pressing the RPT button on the
COMAND system. A pop-up window will appear
in the COMAND system display to indicate that a
Tele Aid call is in progress. After the Tele Aid call
has ended, the optional cellular phone inserted
in the cradle switches on again. A PIN entry
might be necessary.
Warning!G
If the indicator lamps on the SOS button, on
the Roadside Assistance button, and/or on
the Information button remain illuminated
continuously in red and/or the message
Tele Aid inoperative is displayed in the
multifunction display after the system
self-check, a malfunction in the system has
been detected.
If a malfunction is indicated as outlined
above, the system may not operate as
expected. Have the system checked at the
nearest Mercedes-Benz Light Truck Center
as soon as possible.

247 Operation
Driving instructions
Refer to the description of the Brake Assist
System (BAS) (
page 90).
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the
reservoir.
The brake fluid level in the reservoir may
be too low if the brake warning lamp in the
instrument cluster comes on although the
parking brake is released (
page 326).
Observe additional messages in the
multifunction display that may appear
(
page 338).
Have the brake system inspected
immediately. Contact an authorized
Mercedes-Benz Light Truck Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Light Truck Center.
Only install brake pads and brake fluid
recommended by Mercedes-Benz.After hard braking, it is advisable to drive
on for some time, rather than immediately
park, so the air stream will cool down the
brakes faster.
Driving off
Apply the brakes to test them briefly after
driving off. Perform this procedure only
when the road is clear of other traffic.
Warm up the engine smoothly. Do not
place full load on the engine until the
operating temperature has been reached.
To ensure sufficient traction during
off-road driving, activate differential locks
as needed (
page 175).
Warning!G
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired. This
could result in an accident.
!When driving down long and steep grades,
relieve the load on the brakes by shifting into a
lower gear to use the engine’s braking power.
This helps prevent overheating of the brakes and
reduces brake pad wear.
!When driving off on a slippery surface, do
not allow a drive wheel to spin for an extended
period with the ESP
® switched off. Doing so may
cause serious damage to the drivetrain which is
not covered by the Mercedes-Benz Limited
Warranty.
!Simultaneously depressing the accelerator
pedal and applying the brake reduces engine
performance and causes premature brake and
drivetrain wear.

324 Practical hints
What to do if …
Lamps in instrument clusterGeneral information:
If any of the following lamps in the instru-
ment cluster fails to come on during thebulb self-check when switching on ignition,
have the respective bulb checked and
replaced if necessary.
ProblemPossible cause/consequenceSuggested solution
-The yellow ABS indicator lamp
comes on while driving.You have engaged the differential locks. The
ABS, ESP®, BAS, EBB and 4-ETS are switched
off.
The driving systems will switch on
again after the differential locks have
been disengaged.
The ABS has detected a malfunction and has
switched off. The ESP®, BAS, EBB and 4-ETS
are also switched off (see messages in multi-
function display).
The brake system is still functioning normally
but without the ABS available.
If the ABS control unit is malfunctioning,
other systems such as the navigation system
or Rear Parking Assist* may also be malfunc-
tioning.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
Failure to follow these instructions
increases the risk of an accident.
Read and observe messages in the
multifunction display (
page 338).

338 Practical hints
What to do if …
Vehicle status messages in the
multifunction display
Warning and malfunction messages
appear in the multifunction display located
in the instrument cluster.
Certain warning and malfunction mes-
sages are accompanied by an audible
signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the vehicle status message
memory menu in the control system
(
page 144) displays both cleared and
uncleared messages.High-priority messages appear in the
multifunction display in red color.
Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button (
page 130) or
buttonj,k,·, orè on the
multifunction steering wheel.
Other messages of high priority and
messages of less immediate priority can
be cleared from the multifunction display
using the reset button (
page 130) or
buttonj,k,·, orè on the
multifunction steering wheel. They are
then stored in the vehicle status message
memory (
page 144). Remember that
clearing a message will only make the
message disappear. Clearing a message
will not correct the condition that caused
the message to appear.
Warning!G
All categories of messages contain
important information which should be
taken note of and, where a malfunction is
indicated, addressed as soon as possible at
an authorized Mercedes-Benz Light Truck
Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property
damage or personal injury.

339 Practical hints
What to do if …
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may
appear in the multifunction display.
For your convenience the messages are
divided into two sections:

Text messages (page 340)

Symbol messages (page 344)
Warning!G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning
messages or the failure of any systems.
Driving characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Contact an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
iSwitching on the ignition causes all
instrument cluster lamps (except high beam
headlamp indicator lamp, and turn signal
indicator lamps unless activated) as well as the
multifunction display to come on. Make sure the
lamps and multifunction display are in working
order before starting your journey.

349 Practical hints
What to do if …
During severe operating conditions and
stop-and-go city traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display symbolDisplay messagePossible cause/consequencePossible solution
Observe the coolant temperature gauge in the
instrument cluster (
page 26).
If the temperature rises again:
Contact an authorized Mercedes-Benz
Light Truck Center immediately.
Warning!G
Driving when your engine is overheated can
cause some fluids which may have leaked
into the engine compartment to catch fire.
You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the hood. Stay away from the engine if you
see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
!The engine should not be operated with the
coolant temperature above 248°F (120°C).
Doing so may cause serious engine damage
which is not covered by the Mercedes-Benz
Limited Warranty.

431 Index
A
ABS 27, 88
Indicator lamp 324–325, 327
LOW RANGE mode 90
Messages in display 340
Accelerator position (Automatic
transmission) 166
Accessory weight 304
Accident
In case of 61
Activating
Air conditioning (cooling) 190
Air recirculation mode 188
Anti-theft alarm system 97
Central locking (control system) 155
Defrost 187
Easy-entry/exit feature 156
ESP
®95
Exterior headlamps 56
Exterior lamps 118
Exterior rear view mirror parking
position 178Headlamps 56
Immobilizer 96
Rear window defroster 181
Windshield defroster 181
Windshield wipers 58
Adding
Coolant 275
Engine oil 273
Additional turn signals 378
Adjusting 41
Air distribution 186
Air volume 186
Exterior rear view mirrors 46
Head restraint fore and aft
adjustment 43
Head restraint height 43
Head restraint height, rear seats 110
Instrument cluster illumination 130
Interior rear view mirror 46
Mirrors 46
Multicontour seat* 109Seat backrest tilt 43
Seat cushion depth 109
Seat cushion tilt 43
Seat fore and aft adjustment 43
Seat height 43
Seats 41
Steering column in/out 45
Steering column up/down 45
Steering wheel 44
Advanced TPMS
Messages in display 342–343,
361–362
Air bags 70
BabySmart
TM air bag deactivation
system 81
Front 73
Safety guidelines 72
Window curtain air bags 74
Air conditioning 189
Air conditioning refrigerant 425
Air distribution
Adjusting 186

435 Index
Cockpit 24
Cold tire inflation pressure 304
COMAND see separate operating
instructions
Combination switch 25, 122
High beam flasher 57, 122
High beam headlamps 122
Turn signals 57
Windshield wipers 58
Control and operation of radio
transmitters 261
Control system 133
Audio menu 141
Convenience submenu 156
Display digital speedometer 140
Display outside temperature 140
Functions 135, 137, 139
Instrument cluster submenu 149
Lighting submenu 151
Menus 136, 137, 139
Multifunction display 133
Multifunction steering wheel 134
NAVI menu 144
Satellite radio (USA only) 142
Selecting radio system 141
Settings menu 146Standard display menu 140
Submenus 135, 137, 139
TEL menu 159
Trip computer menu 157
Vehicle status message memory
menu 144
Vehicle submenu 154
Convenience feature 194
Convenience submenu 156
Activating easy-entry/exit
feature 156
Coolant 274, 427
Adding 275
Anticorrosion/antifreeze
quantity 428
Capacities 422
Checking level 274
Messages in display 347–350
Temperature 263
Temperature gauge 131
Coolant level
Checking 266, 274
Coolant temperature gauge 27
Corner-illuminating front fog lamps 122
Crossing obstacles 258Cruise control 197
Canceling 198
Driving downhill 198
Driving uphill 198
Fine adjustment 199
Message in display 350
Setting current speed 198
Setting speed 199
Cruise control lever 198
Cup holders 219
In front passenger footwell 220
In rear passenger footwell 220
Next to armrest 219
Curb weight 304