Page 287 of 385

284 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
In t he c as e of bulb failur es in ce rtain lamp s, ot her lamps
will substitute. See page 328 for instructions on
replacing bulbs.
* C = Category, see page 272
LH: Left Hand; RH: Right Hand
F, L: Front, Left; F, R: Front, Right
R, L: Rear, Left; R, R: Rear, Right
FRT: Front
1 The display or the system is malfunctioning.
2 The brake lamps are switching on after a delay or are permanently
on – visit workshop immediately.
3 The brake lamp comprises several light emitting diodes. The
warning message will only appear if all light emitting diodes have
stopped working.
4 Other bulbs will be brought into use as replacements when certain
lamps blow. TURN SIGNAL F, R CHECK LAMPS
SUBSTITUTE LAMP ON!
4
2
TURN SIGNAL R, L CHECK LAMPS
SUBSTITUTE LAMP ON!
4
2
TURN SIGNAL R, R CHECK LAMPS
SUBSTITUTE LAMP ON!
4
2
REAR FOGLAMP CHECK LAMPS! 2
REAR FOGLAMP TURN OFF
SUBSTITUTE LAMP ON!
4
2
REVERSE LAMP CHECK LAMPS! 2
SIDE MARKER LAMP, LF CHECK LAMPS! 2
SIDE MARKER LAMP, RF CHECK LAMPS!
TAIL LAMP, L CHECK LAMP!
SUBSTITUTE LAMP ON!
4
2
TAIL LAMP, R CHECK LAMP!
SUBSTITUTE LAMP ON!
4
2 Line 1 Line 2 C*
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Page 296 of 385
293 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index TC IN NEUTRAL
* C = Category, see page 272.No gear has been selected in the transfer case, it is in
“NEUTRAL”. Engage transfer case to gear position
“HIGH” or “LOW”, see page 248 for switching the
transfer case.TRANSFER CASE
* C = Category, see page 272.There is a malfunction in the transfer case. Have the
transfer case checked immediately by a Mercedes-Benz
Light Truck Center.
Line 1 Line 2 C*
TC IN NEUTRAL 3Wa r n i n g !
If TC is in neutral, the “P” position of transmission
will not hold vehicle. The parking brake must be
applied to hold vehicle in place.
Line 1 Line 2 C*
TRANSFER CASE VISIT WORKSHOP 2
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Page 325 of 385

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.
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Page 345 of 385
342 Exterior lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
High mounted stop lamp
The high mounted stop lamp (3rd brake lamp) is
equipped with LEDs. The additional turn signals on the
exterior mirrors are equipped with incandescent bulbs.
Have the system checked at an authorized
Mercedes-Benz Light Truck Center if a malfunction
occurs.
J_G463.book Seite 342 Mittwoch, 19. September 2001 8:06 08
Page 353 of 385

350 Cleaning and care of the vehicle
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex
Cleaning and care of the vehicle
In operation, your vehicle is subjected to varying
external influences which, if gone unchecked, can
attack the paintwork as well as the underbody and
cause lasting damage.
Such damage is caused not only by extreme and varying
climatic conditions, but also by air polution, road salt,
tar, gravel and stone chipping. Grease and oil, fuel,
coolant, brake fluid, bird droppings, insects, tree resins
etc. should be removed immediately to avoid paint
damage. Frequent washing reduces and / or eliminates
the aggressiveness and potency of the above adverse
influences.More frequent washings are necessary to deal with
unfavorable conditions; for example, near the ocean, in
industrial areas (smoke, exhaust emissions), or during
winter operation.
You should check your vehicle from time to time for
stone chipping or other damage. Any damage should be
repaired as soon as possible to prevent the start of
corrosion.
In doing so, do not neglect the underside of the vehicle.
A prerequisite for a thorough check is a washing of the
underbody followed by a thorough inspection. Damaged
areas need to be reundercoated.
Your vehicle has been treated at the factory with a wax-
base rustproofing in the body cavities which will last for
the lifetime of the vehicle. Post-production treatment is
neither necessary nor recommended by Mercedes-Benz
because of the possibility of incompatibility between
materials used in the production process and others
applied later.
We have selected car-care products and compiled
recommendations which are specially matched to our
vehicles and which always reflect the latest technology.
You can obtain Mercedes-Benz approved car-care
products at your authorized Mercedes-Benz Light Truck
Center.
Wa r n i n g !
Many cleaning products can be hazardous. Some
are poisonous, others are flammable. Always follow
the instructions on the particular container.
Always open your vehicle’s doors or windows when
cleaning the inside.Never use fluids or solvents that are not designed
for cleaning your vehicle.
J_G463.book Seite 350 Mittwoch, 19. September 2001 8:06 08
Page 366 of 385

363 Fuels, coolants, lubricants etc.
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Engine oils
Engine oils are specifically tested for their suitability in
our engines. Therefore, use only engine oils
recommended by Mercedes-Benz. Information on
recommended brands is available in the Factory
Approved Service Products pamphlet, or at your
authorized Mercedes-Benz Light Truck Center.
Please follow Service Booklet recommendations for
scheduled oil changes. Failure to do so could result in
engine damage not covered by the Mercedes-Benz
Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil. They may be
harmful to the engine operation.
Damage or malfunctions resulting from blending oil
additives are not covered by the Mercedes-Benz Limited
Warranty.Air conditioner refrigerant
R-134a (HFC) refrigerant and special PAG lubricating oil
is used in the air conditioner system.
Never use R-12 (CFC) or mineral-based lubricating oil,
otherwise damage to the system will occur.
Brake fluid
During vehicle operation, the boiling point of the brake
fluid is continuously reduced through the absorption of
moisture from the atmosphere. Under extremely hard
operating conditions, this moisture content can lead to
the formation of bubbles in the system thus reducing
the system’s efficiency.
The brake fluid must therefore be replaced every two
years, preferably in the spring.
It is recommended to use only brake fluid approved by
Mercedes-Benz. Your authorized Mercedes-Benz Light
Truck Center will provide you with additional
information.
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