2008 MERCEDES-BENZ G500 check engine

Contents
Operation......................................... 243
The first 1 000 miles (1 500 km) ......... 244
Driving instructions ............................ 245 Drive sensibly – save fuel ............. 245
Drinking and driving ..................... 245
Pedals .......................................... 245
Power assistance ......................... 246
Brakes .......................................... 246
Driving off..................................... 247
Parking ......................................... 248
Tires ............................................. 248
Hydroplaning ................................ 249
Tire traction .................................. 249
Tire speed rating .......................... 250
Winter driving instructions ........... 251
Standing water ............................. 252
Passenger compartment .............. 252
Off-road driving ............................ 253
Driving abroad .............................. 261
Control and operation of radio
transmitters.................................. 261
Catalytic converter ....................... 262
Emission control........................... 263
Coolant temperature .................... 263 At the gas station .............................. 264
Refueling ...................................... 264
Check regularly and before a
long trip........................................ 265
Engine compartment ......................... 267 Hood ............................................ 267
Engine oil ..................................... 269
Transmission fluid level ................ 273
Coolant level ................................ 274
Windshield/rear window washer
system and headlamp
cleaning system ........................... 275
Tires and wheels ................................ 277 Important guidelines .................... 277
Tire care and maintenance ........... 278
Direction of rotation ..................... 280
Loading the vehicle ...................... 280
Recommended tire inflation
pressure ....................................... 286
Checking tire inflation pressure ... 288
Tire labeling.................................. 294
Load identification ....................... 298
DOT, Tire Identification Number
(TIN) ............................................. 299
Maximum tire load ....................... 300
Maximum tire inflation pressure .. 301 Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 302
Tire ply material ........................... 304
Tire and loading terminology........ 304
Rotating tires ............................... 307
Winter driving .................................... 309 Winter tires .................................. 309
Block heater (Canada only) .......... 310
Snow chains................................. 310
Maintenance...................................... 311 Maintenance service indicator
message ...................................... 311
Calling up the maintenance
service indicator display .............. 313
Resetting the maintenance
service indicator .......................... 313
Vehicle care....................................... 314 Cleaning and care of the vehicle .. 314
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23
At a glance
Exterior view
ItemPage
1Tailgate105
Cargo compartment

Loading instructions208

Expanding206

Cargo tie-down rings209

Partition net*210

Cover blind214
2Rear view camera203
3Rear window defroster181
4Rear lamps376
5Fuel filler flap264
Refueling264
Fuel265,
424
ItemPage
6Exterior rear view mirrors
Adjusting46
Auto-dimming rear view
mirrors177
7Hood267
Engine oil269
Coolant274
8Windshield wipers58
Wiper blades, replacing386
Wiper blades, cleaning319
9Windshield
Cleaning with windshield
washer fluid59
Cleaning319
Windshield defroster180
aPower tilt/sliding sunroof195
ItemPage
bDoors
Locking and unlocking100
Opening and closing104
Locking/unlocking in an
emergency368
cHeadlamp cleaning system177
dFront lamps376
eTires and wheels277,414
Checking tire inflation
pressure288
General information277
Flat tire388
Spare wheel366
fFront towing eye402
Rear towing eye402
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39
Getting started
Unlocking
Press unlock button
Πon the
SmartKey.

All turn signal lamps flash once.

The locking knobs in the doors
move up.

The anti-theft alarm system is
disarmed.

The locator lighting comes on if the
feature is enabled in the control
system (
page 152).
Enter the vehicle and insert the
SmartKey in the starter switch.
For more information, see “Locking and
unlocking” (
page 100).
Starter switch positions
SmartKey
Starter switch
0 For removing SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch.
1 Power supply for some electrical
consumers, such as seat adjustment
2 Ignition (power supply for all electrical
consumers) and driving position
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If
a lamp in the instrument cluster
remains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 324).
3 Starting position
Warning!G
When leaving the vehicl e, always remove the
SmartKey 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. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
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40 Getting started
Unlocking
For information on starting the engine, see
(
page 54).
iWhen you switch on the ignition, the indica-
tor and warning lamps (except high beam head-
lamp indicator lamp and turn signal indicator
lamps unless activated) in the instrument cluster
come on. The indicator and warning lamps
(except high beam headlamp indicator lamp and
turn signal indicator lamps if activated) will go
out when the engine is running. This indicates
that the respective systems are operational.
iThe SmartKey can only be removed from the
starter switch with the gear selector lever in park
position P.
iIf the SmartKey is left in starter switch
position 0 for an extended period of time, it can
no longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
SmartKey from the starter switch and reinsert.
!If the SmartKey cannot be turned in the
starter switch, the battery may not be
sufficiently charged.

Check the battery and charge it if necessary
(
page 396).

Get a jump start (page 397).
To prevent accelerated vehicle battery discharge
or a completely discharged vehicle battery,
always remove the SmartKey from the starter
switch when the engine is not in operation.
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58 Getting started
Driving
Windshield wipers
The combination switch is located on the
left of the steering column.
Combination switch
1Single wipe
Wiping with windshield washer fluid
2 Switching on windshield wipers
Switch on the ignition (page 39). Switching on windshield wipers
Turn the combination switch to the
desired position depending on the
intensity of the rain.
0
Windshield wipers off
I Intermittent wiping
II Normal wiper speed
III Fast wiper speed
!Do not operate the windshield wipers when
the windshield is dry. Dust that accumulates on
a windshield might scratch the glass and/or
damage the wiper blades when wiping occurs on
a dry windshield. If it is necessary to operate the
windshield wipers in dry weather conditions,
always operate the windshield wipers with
windshield washer fluid (
page 59).
!If anything blocks the windshield wipers
(leaves, snow, etc.), switch them off
immediately.

For safety reasons, stop the vehicle in a safe
location, turn off the engine and remove the
SmartKey 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 with
the combination switch in position I,

set the combination switch to the next
higher wiper speed

have the windshield wipers checked at the
nearest authorized Mercedes-Benz Light
Truck Center.
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61
Getting started
Driving
Problems while driving
The engine runs erratically and misfires

An ignition cable may be damaged.

The engine electronics may not be
operating properly.

Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired at an
authorized Mercedes
-Benz Light Truck
Center as soon as possible. The coolant temperature is above
248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle in a safe location as
soon as possible and turn off the
engine. Allow engine and coolant to
cool off.
Check the coolant level and add
coolant if necessary (
page 274).
In case of accident
If the vehicle is leaking fuel:
Do not start the engine under any
circumstances.
Notify local fire and/or police
authorities.
If the extent of the damage cannot be
determined:
Contact an authoriz ed Mercedes-Benz
Light Truck Center or call Roadside
Assistance.
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 346).
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137
Controls in detail
Control system
Menus, submenus and functions
Menu
1Menu2Menu3Menu 4
Standard displayAudioNAVVehicle status message
memory1
1The vehicle status message memory menu is only displayed if there is a message stored.
(page 140)(page 141)(page 144)(page 144)
Commands/submenu
Trip- and main odometerSelecting radio stationRoute guidance instructions,
current direction traveledCalling up malfunction
messages, warning messages,
and system status messages
stored in memory
Checking tire inflation
pressureSelecting satellite radio
station* (USA only)
Calling up digital speedometer
or outside temperatureOperating CD player
Calling up maintenance
service indicator
Checking engine oil level
iThe headings used in the menus table are
designed to facilitate navigation within the
system and are not necessarily 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.
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. November 2007 8:41 08

140 Controls in detail
Control system
Standard display menu
In the standard display, the main odometer
and the trip odometer appear in the multi-
function display.
Standard display
1 Trip odometer
2 Main odometer If you see another display instead of the
standard display:
Press button
è orÿ repeatedly
until the standard display appears in
the multifunction display.
Press button k orj to select
the functions in the standard display
menu.
The following functions are available: Calling up digital speedometer or
outside temperature
Press button
k orj repeatedly
until the digital speedometer or the
outside temperature appears in the
multifunction display.
Digital speedometer
FunctionPage
Checking tire inflation pressure288
Calling up digita l speedometer or
outside temperature140
Calling up maintenance service
indicator313
Checking engine oil level270
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