2002 MERCEDES-BENZ G500 fuel pressure

5 Contents
Practical hintsFirst aid kit, vehicle tools
and jack ......................................296
CD-changer .....................................296
Fuses ................................................297
Electrical outlet .............................. 301
Stowing items in the vehicle ........ 301
Hood .................................................302
Checking engine oil level .............304
Automatic transmission
fluid level ...................................305
Engine oil consumption ................305
Coolant level ...................................306
Adding coolant ...........................306
Windshield washer/headlamp
cleaning system .........................307
Windshield and headlamp
washer fluid mixing ratio .........307Vehicle jack .................................... 308
Wheels ............................................. 310
Tire replacement ........................ 310
Rotating wheels .......................... 311
Spare wheel cover ..........................312
Spare wheel ..................................... 313
Changing wheels ............................ 314
Tire inflation pressure .................. 318
Battery .............................................. 319
Jump starting ................................. 321
Towing the vehicle ........................ 324
Transmission selector lever,
manually unlocking .................. 327
Stranded vehicle ............................ 327
Exterior lamps ............................... 328
Headlamp assembly .................. 329
Fog lamp, front ........................... 332
Turn signal lamp, front ............ 334Turn signal lamp, side ...............335
Front and rear
side marker lamps .....................337
Taillamp assemblies ..................339
License plate lamp .....................340
Rear fog lamp / Backup lamp ... 341
Changing batteries in
the electronic key .....................343
Synchronizing
remote control ............................345
Emergency operation of
sliding/pop-up roof ...................346
Manual release for
fuel filler flap .............................347
Replacing wiper blades .................348
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216 Driving instructions
Te ch n i c a l
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Driving instructions
Drive sensibly – save fuel
Fuel consumption, to a great extent, depends on driving
habits and operating conditions.
To save fuel you should:
•keep tires at the recommended inflation pressures,
•remove unnecessary loads,
•allow engine to warm up under low load use,
•avoid frequent acceleration and deceleration,
•have all maintenance work performed at regular
intervals by an authorized Mercedes-Benz Light
Truck Center.
Fuel consumption is also increased by driving in cold
weat her, in stop -and -go traf f ic, on short trip s an d in hilly
country.Drinking and driving
Ped al s
Wa r n i n g !
Drinking or taking drugs and driving can be a very
dangerous combination. Even a small amount of
alcohol or drugs can affect your reflexes,
perceptions and judgement.The possibility of a serious or even fatal accident is
sharply increased when you drink or take drugs
and drive.Please do not drink or take drugs and drive or allow
anyone to drive after drinking or taking drugs.Wa r n i n g !
Keep driver’s foot area clear at all times. Objects
stored in this area may impair pedal movement.
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227 Driving instructions
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Be especially careful when driving in unknown
territory. It is good practice to get out of the vehicle and
scout the path you intend to take.
Continuous and speedy driving in sandy soil overcomes
the vehicle rolling resistance, and helps to prevent the
vehicle from sinking into the ground. Switch on the
differential locks, see page 253.
Do not initiate jumps with the vehicle. It interrupts the
forward momentum of the vehicle.
Always drive on slopes with the engine running and the
vehicle in gear.
Sand, dirt, mud and other material having friction
property, can cause exceptional wear and tear as well as
failure of the brakes.
In this case the brakes may be less effective or even fail
when you most need them. Always clean and check the
brakes following each off-road trip.Checklist before off-road driving
• Engine oil level: Check the engine oil level, see
page 127 and page 304. The display “ENGINE OIL
LEVEL – O.K.” must appear in the multifunction
display.
Only then is a trouble free oil supply obtained even
on steep gradients with the vehicle.
•Tires: Check t he tr ead de pt h an d main tain s pec if ied
tire pressure (see tire pressure label inside the fuel
filler flap). Check tires for possible damage and
remove foreign objects. The valve caps must be
mounted.
•Rims: Dented or bent rims can cause tire pressure
loss and damage the tire beads. For this reason,
check and, if necessary, change rims before driving
off-road.
• Vehicle tool kit: Check if the vehicle jack is
functional. In all cases take the vehicle tool kit, a
strong tow rope, a shovel and a small plank (to put
under the vehicle jack on sandy soil) with you.
J_G463.book Seite 227 Mittwoch, 19. September 2001 8:06 08

258 What you should know at the gas station
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What you should know at the gas station
Fuel supplyOpen flap by pushing at rear (arrow). Turn fuel cap to
the left and hold on to it until possible pressure in tank
has been released, then remove cap. Failure to remove
slowly could result in personal injury.
The fuel filler cap is tethered to the fuel filler neck. Do
not drop the cap. It could damage the vehicle paint
finish.
Manual release of fuel filler flap, see page 347.
Important!
When refueling vehicle make certain that no gasoline
comes into contact with plastic taillamp, to prevent
damaging the lens.
Fuel
To prevent fuel vapors from escaping into open air, fully
insert filler nozzle unit.
Only fill fuel tank until the filler nozzle unit cuts out –
do not top up or overfill.
Wa r n i n g !
Gasoline is highly flammable and poisonous. It
burns violently and can cause serious injury.
Whenever you are around gasoline, avoid inhaling
fumes and skin contact, extinguish all smoking
materials. Never allow sparks, flame or smoking
materials near gasoline!
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259 What you should know at the gas station
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Leaving the engine running and the fuel cap open can
cause the “CHECK ENGINE” lamp to illuminate.
Fuel tank capacity approximately 25.4 US gal (96.0 l).
This includes approximately 5.3 US gal (20.0 l) reserve.
Use premium unleaded gasoline: Posted Octane
Index 91 (Average of 96 RON / 86 MON).
•Engine oil
Engine oil level check, see page 127 and page 304.
Fill quantity between upper and lower dipstick
marking level: 2.1 US qt (2.0 l).
Recommended engine oils, see Approved Service
Products sheet.•Coolant
For normal replenishing, use water (potable water
quality).
For further information (e.g. anticorrosion/
antifreeze), see page 306 and 365.
• Spark plugs
Approved spark plugs, see page 360.
•Tire pressure
For tire pressure, refer to tire pressure label inside
the fuel filler flap. See page 318 for further details.
•Air conditioner
R-134a refrigerant and special PAG lubricant, see
page 363.
Wa r n i n g !
Overfilling of fuel tank may result in creating
pressure in the system which could cause a gas
discharge such as the gas spraying back out upon
removing the filler nozzle which could cause
personal injury.
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295 Contents - Practical hints
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit, vehicle tools
and jack ......................................296
CD-changer .....................................296
Fuses ................................................297
Electrical outlet .............................. 301
Stowing items in the vehicle ........ 301
Hood .................................................302
Checking engine oil level .............304
Automatic transmission
fluid level ...................................305
Engine oil consumption ................305
Coolant level ...................................306
Adding coolant ...........................306
Windshield washer/headlamp
cleaning system .........................307
Windshield and headlamp
washer fluid mixing ratio .........307Vehicle jack .................................... 308
Wheels ............................................. 310
Tire replacement ........................ 310
Rotating wheels .......................... 311
Spare wheel cover ..........................312
Spare wheel ..................................... 313
Changing wheels ............................ 314
Tire inflation pressure .................. 318
Battery .............................................. 319
Jump starting ................................. 321
Towing the vehicle ........................ 324
Transmission selector lever,
manually unlocking .................. 327
Stranded vehicle ............................ 327
Exterior lamps ............................... 328
Headlamp assembly .................. 329
Fog lamp, front ........................... 332
Turn signal lamp, front ............ 334Turn signal lamp, side ...............335
Front and rear
side marker lamps .....................337
Taillamp assemblies ..................339
License plate lamp .....................340
Rear fog lamp / Backup lamp ... 341
Changing batteries in
the electronic key .....................343
Synchronizing
remote control ............................345
Emergency operation of
sliding/pop-up roof ...................346
Manual release for
fuel filler flap .............................347
Replacing wiper blades .................348
J_G463.book Seite 295 Mittwoch, 19. September 2001 8:06 08

318 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Tire inflation pressure
A table (see fuel filler flap) lists the tire inflation
pressures specified for Mercedes-Benz recommended
tires as well as for the varying operating conditions.
Important!
Tire pressure changes by approximately 1.5 psi (0.1 bar)
per 18
°F (10
°C) of air temperature change. Keep this in
mind when checking tire pressure inside a garage –
especially in the winter.
Example:
If garage temperature = approximately +68
°F (+20
°C)
and ambient temperature = approximately +32
°F (0
°C)
then the adjusted air pressure = specified air pressure
+3 psi (+0.2 bar).Tire pressures listed for light loads are minimum values
offering high driving comfort. Increased inflation
pressures for heavy loads produce favorable handling
characteristics with lighter loads and are perfectly
permissible. The ride of the vehicle, however, will
become somewhat harder.
Tire temperature and pressure increase with the vehicle
speed. Tire pressure should therefore only be checked
and corrected on cold tires. Correct tire pressure in
warm tires only if pressure has dropped below the
pressure listed in the table and the respective operating
conditions are taken into consideration.
An underinflated tire due to a slow leak (e.g. due to a
nail in the tire) may cause damage such as tread
separation, bulging etc.. Regular tire pressure checks
(including the spare tire) at intervals of no more than
14 days are therefore essential.
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364 Fuels, coolants, lubricants etc.
Te ch n i c a l
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and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Premium unleaded gasoline
Caution!
To maintain the engine’s durability and performance,
premium unleaded gasoline must be used. If premium
unleaded is not available and low octane fuel is used,
follow these precautions:
•have the fuel tank filled only partially with unleaded
regular and fill up with premium unleaded as soon
as possible,
•avoid full throttle driving and abrupt acceleration,
•do not exceed an engine speed of 3000 rpm, if the
vehicle is loaded with a light load such as two
persons and no luggage,
•do not exceed 2 / 3 of maximum accelerator pedal
position, if the vehicle is fully loaded or operating in
mountainous terrain.Fuel requirements
Use only Premium unleaded meeting ASTM
standard D 439:
The octane number (posted at the pump) must be
91 min. It is an average of both the Research (R) octane
number and the Motor (M) octane number: [(R+M) / 2].
This is also known as ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates such as
Ethanol, IPA, IBA and TBA can be used provided the
ratio of any one of these oxygenates to gasoline does not
exceed 10%, MTBE not to exceed 15%.
The ratio of Methanol to gasoline must not exceed 3%
plus additional cosolvents.
Using mixtures of Ethanol and Methanol is not allowed.
Gasohol, which contains 10% Ethanol and 90% unleaded
gasoline, can be used.
These blends must also meet all other fuel requirements
such as resistance to spark knock, boiling range, vapor
pressure etc..
J_G463.book Seite 364 Mittwoch, 19. September 2001 8:06 08