MERCEDES-BENZ ML320 2002 W163 Owner's Manual

249 Contents - Practical hints
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit .....................................250
Fuses ................................................250
Electrical outlet ..............................252
Stowing items in the vehicle ........252
Hood .................................................253
Checking engine oil level .............255
Automatic transmission
fluid level ...................................256
Engine oil consumption ................256
Coolant level ...................................256
Adding coolant ...........................257
Windshield washer/headlamp
cleaning system .........................258
Windshield and headlamp
washer fluid mixing ratio .........259Ve h i c l e j a c k ,
wheel bolt wrench and
screwdriver ............................... 259
Air pump ......................................... 261
Wheels ............................................ 262
Tire replacement ....................... 262
Rotating wheels ......................... 263
Spare wheel .................................... 264
Changing wheels ........................... 267
Tire inflation pressure ................. 272
Battery ............................................. 273
Jump starting ................................. 275
Towing the vehicle ........................ 277
Transmission selector lever,
manually unlocking .................. 281
Stranded vehicle ............................ 281Exterior lamps ................................282
Headlamp assembly ...................283
Taillamp assemblies ..................287
Adjusting headlamp aim ...............290
Remote control battery
replacement ...............................292
Synchronizing
remote control ............................293
Emergency operation of
sliding/pop-up roof ...................294
Manual release for
fuel filler flap .............................295
Replacing wiper blades .................295
Roof rack .........................................296

250 First aid kit
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
First aid kit
The first aid kit is located behind the cover (1) in the
liftgate.
To open, pull in direction of arrows and remove cover.Fuses
Before replacing a blown fuse, determine the cause of
the short circuit.
Spare fuses and a special fuse puller are supplied inside
the fuse box cover. Observe amperage and color of fuse.
Always use a new fuse for replacement. Never attempt to
repair or bridge a blown fuse.
A fuse chart can be found inside the corresponding fuse
box cover.

251 Fuses
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Fuse box in engine compartment
1Fuse box in engine compartment
To gain access to the fuse box, release clamps
(arrows), lift the fuse box cover (1) up and remove it.
To close the fuse box, engage back end of cover,
close, and secure with clamps.Auxiliary fuse box in front passenger footwell
2Auxiliary fuse box in front passenger compartment
To gain access to the fuse box, turn both locks (3)
90
° counterclockwise and remove cover in direction
of arrow.
To close the fuse box, engage back end of cover, slide
the cover towards vehicle front and secure by
turning both locks (3) clockwise to the stop.
1

252 Electrical outlet
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Electrical outlet
Two electrical outlets can be found, one at the front
passenger footwell, and the other in the rear
compartment (always operational).To o p e n :
Flip up cover and insert electrical plug (cigar lighter
type).
Note:
The electrical outlets can be used to accommodate
accessories (e.g. air pump, auxiliary lamps) up to
maximum 180 W.
Stowing items in the vehicle
Wa r n i n g !
To help avoid personal injury during a collision or
sudden maneuver, always use partition net when
transporting cargo. Always fasten items being
carried as securely as possible using cargo tie-
down rings and fastening materials appropriate for
the weight and size of the load.

253 Engine compartment
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Hood
To o pen :
To unlock the hood, pull release lever (1) under the
driver’s side of the instrument panel. At the same time a
handle (2) will extend out of the radiator grill (it may be
necessary to lift the hood up slightly).
Caution!
To avoid damage to the windshield wipers or hood, open
the hood only with wipers in the parked position.Pull handle (2) to its stop out of radiator grill and open
hood (do not pull up on handle).
To c l o s e :
Lower hood and let it drop into lock from a height of
approximately 1 ft. (30 cm).
To avoid hood damage, please make sure that hood is
fully closed. If not, repeat closing procedure. Do not
push down on hood to attempt to fully close it.

254 Engine compartment
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Wa r n i n g !
To help prevent personal injury, stay clear of
moving parts when the hood is open and the engine
is running. Be sure the hood is properly closed
before driving. When closing hood, use extreme
caution not to catch hands or fingers.The radiator fan may continue to run for
approximately 30 seconds or even restart after the
engine has been turned off. Stay clear from fan
blades.
The engine is equipped with a transistorized
ignition system. Because of the high voltage it is
dangerous to touch any components (ignition coils,
spark plug sockets, diagnostic socket) of the
ignition system
• with the engine running,
• while starting the engine,
• if ignition is “on” and the engine is turned
manually.If you see flames, steam or smoke coming from the
engine compartment, or if the coolant temperature
gauge indicates that the engine is overheated, do
not open the hood. Move away from vehicle and do
not open the hood until the engine has cooled. If
necessary, call a fire department.

255 Engine compartment
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Checking engine oil level
1Oil dipstick
2Oil filler cap
To check the engine oil level, park vehicle on level
ground, with engine at normal operational temperature.
Check engine oil level approximately 5 minutes after
stopping the engine, allowing for the oil to return to the
oil pan.Wipe oil dipstick clean prior to checking the engine oil
level. Fully insert dipstick in tube, and remove after
three seconds to obtain accurate reading.
Oil level must be between the
lower (min) and upper (max) mark of
the dipstick.
Fill quantity between upper and lower dipstick marking,
the level is approximately 2.1 US qt (2.0 l).
Do not overfill the engine.
Excessive oil must be drained
or siphoned. It could cause damage to engine and
catalytic converter not covered by the Mercedes-Benz
Limited Warranty.
See page 246 for low engine oil level warning.
Note:
See page 96 for engine oil level indicator.

256 Engine compartment
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Automatic transmission fluid level
The transmission has a permanent fill of automatic
transmission fluid.
Regular automatic transmission fluid level checks and
changes are not required. For this reason the dipstick is
omitted.
If you notice fluid leaks or gear shifting malfunctions,
have your authorized Mercedes-Benz Light Truck Center
check the transmission fluid level.
Engine oil consumption
Engine oil consumption checks should only be made
after the break-in period. During the break-in period,
higher oil consumption may be noticed and is normal.
Frequent driving at high engine speeds results in
increased consumption.Coolant level
To check the coolant level, the vehicle must be parked
on level ground and the engine stopped.
Check coolant level only when coolant is cold.
The coolant level should reach the COLD LEVEL mark in
the reservoir.P20.30-0241-20

257 Engine compartment
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Adding coolant
If coolant has to be added, a 50 / 50 mixture of water and
MB anticorrosion / antifreeze should be added.
After adding coolant, close cap until you hear it click a
few times.
The drain plugs for the cooling system are located on
the left and right side of the engine block directly above
the engine mounts and at the bottom of the radiator.
Anticorrosion / antifreeze mixture, see page 319.
Wa r n i n g !
In order to avoid possible serious burns or injury:
• Use extreme caution when opening the hood if
there are any signs of steam or coolant leaking
from the cooling system, or if the coolant
temperature gauge indicates that the coolant is
overheated.
• Do not remove pressure cap on coolant
reservoir if engine temperature is above 194
°F
(90
°C). Allow engine to cool down before
removing cap. The coolant reservoir contains
hot fluid and is under pressure.
• Using a rag, slowly open cap approximately
1/2 turn to relieve excess pressure. If opened
immediately, scalding hot fluid and steam will
be blown out under pressure.• Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which may
burn if it comes into contact with hot engine
parts.