coolant temperature MERCEDES-BENZ G500 2004 W463 Owner's Manual

ContentsDriving and safety systems .................. 74
ABS ................................................ 74
BAS ................................................ 76
4-ETS .............................................. 77
EBB................................................. 78
ESP ................................................. 78
Anti-theft systems................................ 82
Immobilizer..................................... 82
Anti-theft alarm .............................. 82
Tow-away alarm ............................. 83Controls in detail............................... 85
Locking and unlocking ......................... 86
SmartKey ....................................... 86
Opening the doors from the inside . 89
Opening the tailgate ....................... 89
Closing the tailgate ........................ 90
Separately locking the tailgate ....... 90
Separately unlocking the tailgate ... 91
Automatic central locking .............. 91
Locking and unlocking from
the inside ....................................... 92Seats ................................................... 94
Easy-entry/exit feature .................. 94
Removing and installing front seat
head restraints ............................... 95
Synchronizing head restraints and
seat adjustment fore and aft for
front seats...................................... 95
Rear seat head restraints ............... 96
Multicontour seat* ......................... 97
Heated seats .................................. 98
Memory function ............................... 101
Storing positions into memory ..... 102
Recalling positions from memory . 102
Storing exterior rear view mirror
parking position ........................... 103
Lighting.............................................. 104
Exterior lamp switch..................... 104
Combination switch ..................... 107
Hazard warning flasher ................ 108
Interior lighting............................. 109
Rear interior lamps....................... 110
Cargo compartment lamps........... 110Instrument cluster ............................. 112
Instrument cluster illumination .... 112
Coolant temperature display........ 112
Trip odometer .............................. 113
Tachometer .................................. 113
Outside temperature indicator ..... 114
Control system .................................. 115
Multifunction display.................... 115
Multifunction steering wheel........ 116
Menus .......................................... 118
Standard display menu ................ 120
AUDIO menu ................................ 120
NAVI menu ................................... 122
Malfunction memory menu .......... 122
Settings menu .............................. 123
Trip computer menu..................... 136
TEL menu ..................................... 137
Automatic transmission ..................... 140
One-touch gearshifting ................ 141
Gear ranges ................................. 142
Gear selector lever position ......... 142
Accelerator position ..................... 144
Emergency operation
(Limp Home Mode) ...................... 144

Contents
Transfer case ..................................... 145
Gear range ................................... 145
Switching transfer case................ 145
Differential locks ............................... 148
A few words about differentials
and differential locks.................... 149
Switching differential locks
on and off..................................... 150
Good visibility .................................... 152
Rear view mirror........................... 152
Headlamp cleaning system .......... 153
Sun visors .................................... 154
Rear window defroster ................. 155
Climate control .................................. 156
Setting the temperature ............... 158
Adjusting air distribution and
volume ......................................... 159
Defrosting .................................... 160
Air recirculation............................ 160
Residual engine heat utilization.... 161
Deactivating the climate control
system ......................................... 162
Air conditioning ............................ 162
Rear passenger compartment
adjustable air vents...................... 163Power windows .................................. 164
Opening and closing the windows. 164
Sliding/pop-up roof ............................ 166
Opening and closing the
sliding/pop-up roof....................... 166
Driving systems .................................. 169
Cruise control ............................... 169
Rear Parking Assist* ..................... 172
Loading............................................... 175
Roof rack ...................................... 175
Cargo compartment cover ............ 175
Enlarged cargo compartment........ 176
Split rear seat bench..................... 176
Partition net* (MB Accessory) ...... 178
Loading instructions ..................... 180
Cargo tie-down rings ..................... 182
Useful features ................................... 183
Interior storage spaces ................. 183
Ashtrays........................................ 186
Cigarette lighter ............................ 188
Electrical outlet ............................. 188
Telephone* ................................... 189
Tele Aid ......................................... 190
Garage door opener ...................... 198
Heated steering wheel .................. 203
Operation.......................................... 205
The first 1000 miles (1500 km) .......... 206
Driving instructions ............................ 207
Drive sensibly – save fuel ............. 207
Drinking and driving...................... 207
Pedals ........................................... 207
Power assistance .......................... 208
Brakes .......................................... 208
Driving off ..................................... 209
Parking ......................................... 209
Tires.............................................. 210
Hydroplaning ................................ 210
Tire traction .................................. 211
Tire speed rating ........................... 211
Winter driving instructions ............ 212
Standing water ............................. 213
Passenger compartment............... 213
Off-road driving ............................. 213
Control and operation of radio
transmitters .................................. 221
Driving abroad .............................. 222
Catalytic converter ....................... 222
Emission control ........................... 222
Coolant temperature .................... 223

50 Getting startedDrivingProblems 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 Light Truck
Center as soon as possible.The coolant temperature is over 248°F
(120°C)
The coolant is too hot and is no longer
cooling the engine.

Stop the vehicle as soon as possible
and turn off the engine. Allow engine
and coolant to cool down.

Check the coolant level and add cool-
ant if necessary (
page 232).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
Light Truck Center.
If no damage can be determined on the


major assemblies


fuel system


engine mount

Start the engine in the usual manner.
iExcessive coolant temperatures trigger
a warning message in the multifunction
display (
page 269).

112 Controls in detailInstrument cluster
Instrument clusterA full view illustration of the instrument
cluster can be found in the “At a glance”
section of this manual (
page 24).
1Reset button
The instrument cluster is activated when
you:


open a door


turn on the ignition


press reset button1


switch on the exterior lamps
You can change the instrument cluster set-
tings in the Instrument cluster submenu of
the control system (
page 127).
Instrument cluster illumination
Use the reset button to adjust the illumina-
tion brightness for the instrument cluster.
To brighten illumination
Turn reset button1 in the instrument
cluster clockwise.
The instrument cluster illumination will
brighten.To dim illumination

Turn reset button1 in the instrument
cluster counterclockwise.
The instrument cluster illumination will
dim.
Coolant temperature display
iThe instrument cluster illumination is
dimmed or brightened automatically to
suit ambient light conditions.
The instrument cluster illumination will
also be adjusted automatically when
you switch on the vehicle’s exterior
lamps.
Warning!
G


Driving when your engine is badly over-
heated can cause some fluids which
may have leaked into the engine com-
partment to catch fire. You could be se-
riously 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 com-
ing from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.

113 Controls in detail
Instrument cluster

Turn the SmartKey in the starter switch
to position1 or2.

Call up the trip odometer and main
odometer by pressing buttonè
orÿ on the multifunction steering
wheel (
page 116).

Press buttonj ork until the
coolant temperature display appears.During severe operating conditions, e.g.
stop-and-go traffic, the coolant tempera-
ture may rise close to 248°F (120°C).
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious en-
gine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Trip odometer
Make sure you are viewing the trip
odometer display (
page 115).

I f i t i s n o t d i s p l a y e d , p r e s s b u t t o nè
orÿ on the multifunction steering
wheel (
page 116) until the trip odom-
eter appears.

Press and hold the reset button on the
instrument cluster (
page 112) until
the trip odometer is reset.
Tachometer
The red marking on the tachometer de-
notes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
iExcessive coolant temperature triggers
a warning in the multifunction display
(page 269).
!Avoid driving at excessive engine
speeds, as it may result in serious en-
gine damage that is not covered by the
Mercedes-Benz Limited Warranty.

119 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Standard
display
AUDIO
NAVI
Malfunction
memory
Settings
Trip computer
Telephone
Commands/submenuCoolant
temperature
display
Select radio
station
Activate route
guidance
Call up
malfunction
messages
Reset to factory
settings
Fuel
consumption
statistics after
start
Load phone book
Digital
speedometer
Operate CD
player
Instrument
cluster submenu
Fuel
consumption
statistics since
the last reset
Search for name
in phone book
Call up FSS
Lighting
submenu
Call up range
Check engine oil
level
Vehicle submenuConvenience
submenu

120 Controls in detailControl system
Standard display menu
You can select the functions in the stan-
dard display menu with buttonk
orj.
The following functions are available:
Display digital speedometer
Press buttonj twice.
The current vehicle speed is shown in
the multifunction display.
AUDIO menu
The functions in the
AUDIO
menu operate
the audio equipment which you currently
have turned on.
If no audio equipment is currently turned
on, the message
AUDIO OFF
is shown in the
display.
The following functions are available:
iThe headings used in the menus table
are designed to facilitate navigation
within the system and are not neces-
sarily identical to those shown in the
control system displays.
The first function displayed in each
menu will automatically show you
which part of the system you are in.
Function
Page
Call up coolant temperature
display
112
Call up digital speedometer
120
Call up FSS
242
Check engine oil level
229
Function
Page
Select radio station
121
Operate CD player
121

223 Operation
Driving instructions
carried out regularly according to
Mercedes-Benz servicing requirements.
For details refer to the Service Booklet.
Coolant temperature
During severe operating conditions and
stop-and-go city traffic, the coolant tem-
perature may rise to approx. 248°F
(120°C).
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious en-
gine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Warning!
G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide, and inhaling it can cause uncon-
sciousness and lead to death.
Do not run the engine in confined areas
(such as a garage) which are not properly
ventilated. If you think that exhaust gas
fumes are entering the vehicle while driving,
have the cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one win-
dow fully open at all times.
iExcessive coolant temperatures trigger
a warning message in the multifunction
display (
page 269).
Warning!
G


Driving when your engine is badly over-
heated can cause some fluids which
may have leaked into the engine com-
partment to catch fire. You could be se-
riously 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 com-
ing from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.

233 Operation
Engine compartment
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
1Cap

Using a rag, turn the cap slowly approx-
imately one half turn to the left to re-
lease any excess pressure.

Continue turning the cap to the left and
remove it.

Check coolant level.
The coolant level is correct if the level

for cold coolant: is level with the
mark on the reservoir


for warm coolant: is approx. 0.6 in
(1.5 cm) higher

Add coolant as required.

Replace and tighten cap until you hear
it click a few times.
For more information on coolant, see
“Coolants” (
page 336).
Warning!
G
In order to avoid any possibly serious burns:

Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature display in-
dicates that the coolant is overheated.


Do not remove pressure cap on coolant
reservoir if engine temperature is above
194°F (90°C). Allow engine to cool
down before removing cap. The coolant
reservoir contains hot fluid and is under
pressure.


Using a rag, slowly open the cap approx-
imately
1⁄2turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.


Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.

268 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
B
COOLANT
CHECK LEVEL!
The coolant level is too low.

Add coolant (
page 232).

If you have to add coolant frequently,
have the cooling system checked by
an authorized Mercedes-Benz Light
Truck Center.
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You could be seriously burned.
!Do not ignore the low engine coolant
level warning. Extended driving with
the message and symbol displayed
may cause serious engine damage not
covered by the Mercedes-Benz Limited
Warranty.
Do not drive without sufficient amount
of coolant in the cooling system. The
engine will overheat causing serious
engine damage.
Observe the coolant temperature dis-
play (
page 112).