2002 MERCEDES-BENZ G500 Owner's Manual

254 Driving systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Important!
Do not engage the front axle differential lock when
driving around tight corners as steering ability is
restricted.
When the transfer case differential lock is activated, the
ESP, ABS and BAS are automatically switched off.
The ABS malfunction indicator lamp and the ESP
warning lamp in the instrument cluster come on.
Further appear alternately the messages “ESP NOT
ACTIVE – LOCK ACTIVE”, “BAS NOT AVAILABLE –
LOCK ACTIVE” and “ABS NOT ACTIVE – LOCK
ACTIVE” in the multifunction display.
The differential locks should be engaged when driving
off-road, for example:
•for driving trough water or
•when driving on deep snow, icy or fouled surfaces.
For notes on off-road driving, see page 226.To engage differential locks:
Important!
To avoid damage to the transfer case and differential
locks:
• Engage differential locks only at low speed
(walking speed, not more than 5 mph).
• Do not engage differential locks if the driving
wheels are spinning.
Wa r n i n g !
Never drive on pavement with activated differential
locks.
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255 Driving systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Briefly press the switch for the differential lock
required. The corresponding engagement indicator
lamp (4) comes on.
The ESP warning lamp in the instrument cluster comes
on and the message “ESP NOT ACTIVE – LOCK
SELECTED” appears.The function indicator lamp (5) comes on when the
differential lock engagement procedure has been
completed. The ABS malfunction indicator lamp and the
ESP warning lamp in the instrument cluster come on.
Further appear alternately the messages “ESP NOT
ACTIVE – LOCK ACTIVE”, “BAS NOT AVAILABLE –
LOCK ACTIVE” and “ABS NOT ACTIVE – LOCK
ACTIVE” in the multifunction display.
Only apply the accelerator lightly when driving off.
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256 Driving systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Methods to disengage differential locks
There are two different methods to disengage
differential locks:
•Disengage differential locks in reverse order. When
the rear axle differential lock is disengaged, the
front axle differential lock is automatically
disengaged with it.
Briefly press the previously activated switches for
the differential lock. The correspondending
engagement indicator lamp (4) goes out.
•If the transfer case differential lock is disengaged,
all other differential locks are automatically
disengaged.
Briefly press the switch (1) for the transfer case
differential lock. The engagement indicator
lamps (4) go out.
The function indicator lamp (5) goes out when the
disengagement procedure has been completed.Only when all function indicator lamps (5) have gone
out, the ABS malfunction indicator lamp and the ESP
warning lamp in the instrument cluster go out and the
messages “ESP NOT ACTIVE – LOCK ACTIVE”, “BAS
NOT AVAILABLE – LOCK ACTIVE” and “ABS NOT
ACTIVE – LOCK ACTIVE” in the multifunction display
disappear.
Now the message “ESP – NOT AVAILABLE” appears in
the multifunction display and the ESP warning lamp
comes on. That means the ESP, BAS and ABS functions
are not active yet.
To activate the systems again drive for 3 seconds with a
constant drive behavior.
Note:
If the function lamps do not go out when the differential
locks are disengaged, make minor changes to the
vehicles direction.
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257 Driving systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
When running on a (single-axle) dynamometer – no
matter how briefly – the non driven axle must be
raised or its drive shaft disconnected. The transfer
differential lock must be engaged. Otherwise the
transfer case can be damaged, which is not covered
by the Mercedes-Benz Limited Warranty.
Wa r n i n g !
Never drive on pavement with activated differential
locks.Steering control will be strongly affected with the
front differential lock activated.ABS, BAS and ESP are switched off automatically
when the transfer case differential lock is
activated.
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258 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
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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260 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
•Bulbs
Front:
high and low beam: H4 60 / 55W 12V
fog lamp: H3 55W 12V
standing and parking lamp: T 4W 12V
turn signal lamp: PY 21W 12V (1156NA[cp 32])
Side:
side marker lamp yellow: T 4W 12V
side marker lamp red: T 4W 12V
turn signal lamp: WY 5W 12V 5W
Rear:
tail lamp: R 5W 12V
stop lamp: P 21W 12V
turn signal lamp: PY 21W 12V
backup lamp: P 21W 12V
fog lamp: P 21W 12V
license plate lamp: C 5W 12V (tubular)
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261 Check regulary and before a long trip
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Check regularly and before a long trip 1Engine oil level
See “Checking engine oil level” on page 304 and
“Engine oil level indicator” on page 127.
2Coolant level
See “Coolant level” on page 306.
3Brake fluid
See “Brake fluid” on page 363.
4Windshield washer system/
Headlamp cleaning system/
Rear window washer system
For refilling reservoir see page 307.
Opening hood, see page 302.
Vehicle lighting: Check function and cleanliness. For
replacement of light bulbs, see “Exterior lamps” on
page 328.
Exterior lamp switch, see page 129.
2
1
3
4
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