2002 MERCEDES-BENZ G500 engine

315 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Move vehicle to a level area which is a safe distance
from the roadway.
Important!
The vehic le door s lock if t he lef t f ron t wheel r otate s with
the engine running. Do not leave the engine running
while changing a wheel.
1. Set parking brake and turn on hazard warning
flasher.
2. Move selector lever to position “P” and turn off
engine, and remove key from the starter switch.
Lock steering wheel with wheels in straight ahead
position.
3. Prevent vehicle from rolling away by blocking
wheels with wheel chocks (not supplied with
vehicle) or sizable wood block or stone. When
changing a wheel on a hill, place chocks on the
downhill side blocking both wheels of the other
axle. On a level road, place one chock in front of and
one behind the wheel that is diagonally opposite to
the wheel being changed.4. Using the wrench, loosen but do not yet remove the
wheel bolts.
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316 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
5. The jack must always be in a vertical position, even
on slopes. Place jack under axle housing. Be certain
the jack arm is positioned correctly under the axle
housing.
6. Jack up the vehicle until the wheel is clear of the
ground. Never start engine while vehicle is raised.7. Now finish to unscrew and remove all wheel bolts.
Keep bolt threads protected from dirt and sand.
8. Remove wheel. Grip wheel from the sides. Keep
hands from beneath the wheels.
Clean contact surfaces of wheel and wheel hub.
Install spare wheel on wheel hub. Insert wheel bolts
and tighten them slightly.
9. Lower vehicle to ground. Remove jack.
Before storing the jack, it should be fully collapsed.
For proper storage of jack see page 296.
J_G463.book Seite 316 Mittwoch, 19. September 2001 8:06 08

319 Battery
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index If a tire constantly loses air, it should be inspected for
damage.
The spare tire should be checked periodically for
condition and inflation. Spare tire will age and become
worn over time even if never used, and thus should be
inspected and replaced when necessary.Battery
Important!
Battery replacement information:
The maintenance-free battery is located in front of the
rear seat bench and below the cup holder.
Jump starting terminals are located in the lef t side of the
engine compartment, see page 321.
Wa r n i n g !
Do not overinflate tires. Overinflating tires can
result in sudden deflation (blowout) because they
are more likely to become punctured or damaged
by road debris, potholes etc.. Follow recommended
inflation pressures.Do not overload the tires by exceeding the specified
vehicle capacity weight (as indicated by the label
on the driver’s door latch post). Overloading the
tires can overheat them, possibly causing a
blowout.
Wa r n i n g !
Failure to follow these instructions can result in
severe injury or death.Never lean over batteries while connecting, you
might get injured.Battery fluid contains sulfuric acid. Do not allow
this fluid to come in contact with eyes, skin or
clot hin g. In cas e i t d oes , i mm ed ia tely f lus h a f fected
area with water and seek medical help if necessary.A battery will also produce hydrogen gas, which is
flammable and explosive. Keep flames or sparks
away from battery, avoid improper connection of
jumper cables, smoking etc..
J_G463.book Seite 319 Mittwoch, 19. September 2001 8:06 08

321 Jump starting
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Jump startingImportant!
A discharged battery can freeze at approximately +14
°F
(–10
°C). In that case, it must be thawed out before
jumper cables are used. Attempting to jump start a
frozen battery can result in it exploding, causing
personal injury.
Jumper cable specifications:
•Minimum cable cross-section of 25 mm
2 or
approximately 2 AWG
•Maximum length of 11.5 ft. (3.5 m).
If the battery is discharged, the engine should be started
with jumper cables and the (12 V) battery of another
vehicle.
Only use 12 V battery to jump start your vehicle. Jump
starting with more powerful battery could damage the
vehicle’s electrical systems, which will not be covered
by the Mercedes-Benz Limited Warranty.
The battery is located in front of the rear seat bench and
below the cup holder.
Wa r n i n g !
Failure to follow these directions will cause
damage to the electronic components, and can lead
to a battery explosion and severe injury or death.Never lean over batteries while connecting or jump
starting, you might get injured.Battery fluid contains sulfuric acid. Do not allow
this fluid to come in contact with eyes, skin or
clothing. In case it does, immediately flush affected
area with water, and seek medical help if
necessary.A battery will also produce hydrogen gas, which is
flammable and very explosive. Keep flames or
sparks away from battery, avoid improper
connection of jumper cables, smoking etc..Read all instructions before proceeding.
J_G463.book Seite 321 Mittwoch, 19. September 2001 8:06 08

322 Jump starting
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Jump startin g term in als ar e located in t he lef t s id e of t he
engine compartment.
1Cover
2Positive (+) terminal (located under cover)
3Negative (-) terminalProceed as follows:
1. Position the vehicle with the charged battery so that
the jumper cables will reach, but never let the
vehicles touch. Make sure the jumper cables do not
have loose or missing insulation.
2. On both vehicles:
•Turn off engine and all lights and accessories,
except hazard warning flashers or work lights.
•Apply parking brake and shift selector lever to
position “P”.
Important!
3. Clamp one end of the first jumper cable to the
positive (+) terminal of the discharged battery and
the other end to the positive (+) terminal of the
charged battery. Make sure the cable clamps do not
touch any other metal parts.
4. Clamp one end of the second jumper cable to the
grounded negative (–) terminal of the charged
battery and the final connection to the negative (–)
terminal of the discharged battery.
J_G463.book Seite 322 Mittwoch, 19. September 2001 8:06 08

323 Jump starting
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Important!
5. Start engine of the vehicle with the charged battery
and run at high idle. Make sure the cables are not
on or near pulleys, fans, or other parts that move
when the engine is started. Allow the discharged
battery to charge for a few minutes. Start engine of
the disabled vehicle in the usual manner.
6. After the engine has started, remove jumper cables
by exactly reversing the above installation
sequence, starting with the last connection made
first. When removing each clamp, make sure that it
does not touch any other metal or the other clamp
while the other end is still attached.Notes:
If engine does not run after several unsuccessful
starting attempts, have it checked at the nearest
authorized Mercedes-Benz Light Truck Center.
Excessive unburned fuel may damage the catalytic
converter.
J_G463.book Seite 323 Mittwoch, 19. September 2001 8:06 08

324 Towing
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Towing the vehicle
Notes:
The selector lever will remain locked in position “P” and
the electronic key cannot be turned in the starter switch
if the battery is disconnected or discharged. See battery
on page 319 or jump starting on page 321.
In order to move the vehicle, shift automatic
transmission to position “N”.
Transmission selector lever, manually unlocking, see
page 327.Important!
When towing the vehicle, please, note the following:
Towing of the vehicle should only be done using the
properly installed towing eye bolt. Never attach tow
cable, tow rope or tow rod to vehicle chassis, frame
or suspension parts.
The vehicle may be towed with all wheels on the
ground and the selector lever in position “N” for
distances up to 30 miles (50 km) and at a speed not
to exceed 30 mph (50 km / h). The key must be in
starter switch position 2.
With the automatic central locking activated and the
engine running, the vehicle doors lock if the left front
wheel is turning at vehicle speeds of approximately
9 mph (15 km / h) or more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking. See the
individual setting menu “VEHICLE” – “AUTOMATIC
DOOR LOCK” on page 118.
We recommend that the vehicle be transported using
flat bed equipment. This method is preferable to other
types of towing.
To prevent damage during transport, do not tie down
vehicle by its chassis or suspension parts.
Prior to towing the vehicle with all wheels on the
ground, make certain that the electronic key is in
starter switch position 2.If the electronic key is left in the 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 electronic key
from starter switch and reinsert.
With the engine not running, there is no power
assistance for the braking and steering systems. In
this case, it is important to keep in mind that a
considerably higher degree of effort is necessary to
brake and steer the vehicle.
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326 Towing
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Engine damage /Transmission damage,
Electrical malfunction
To be certain to avoid additional damage to the vehicle
powertrain, however you should do the following:
Shift automatic transmission to position “N”.
Important!
Vehicle may be towed for distances up to 30 miles
(50 km) and at a speed not to exceed 30 mph
(50 km/h).
For towing vehicle for distances exceeding 30 miles
(50 km) or if the vehicle has a damaged transfer
case, remove drive shafts to the drive axles.
When towing vehicle with one axle raised, the
electronic key in starter switch must be in
position 1.
With damage to front axle, raise front axle. Remove
drive shaft between rear axle and transfer case.
With damage to rear axle, raise rear axle and tow
vehicle with wheel lift or dolly placed under front
wheels.Notes:
When removing drive shaft, place M10 nuts on bolts as
distance sleeves and tighten using M8 nuts.
Always install new self-locking nuts when reinstalling
the drive shaft.
Caution!
If the vehicle is towed with the front axle raised, the
engine must be shut off (electronic key in starter switch
position 1). Otherwise, the 4-ETS may become engaged
which may cause loss of towing control. Switch off the
tow-away alarm (see page 43) as well as the ESP (see
page 245).
Note:
To signal turns while being towed with hazard warning
flasher in use, turn electronic key in starter switch to
position 1 and activate combination switch for left or
right turn signal in usual manner. Now deactivate the
hazard warning flasher, only the selected turn signal
will operate. Upon canceling the turn signal, the hazard
warning flasher must be activated again.
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