2002 MERCEDES-BENZ ML320 Owner's Manual

246 Malfunction and indicator lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Low engine oil level warning lamp
With the key in steering lock position 2, the
oil level warning lamp comes on and should
go out when the engine is running.
If the warning lamp does not go out after starting the
engine, or comes on with the engine running and at
operating temperature, the engine oil level has dropped
to approximately the minimum mark on the dipstick.
When this occurs, the warning lamp will first come on
intermittently and then stay on if the oil level drops
further.
If no oil leaks are noted, continue to drive to the nearest
service station where the engine oil should be topped to
the “full” mark on the dipstick with an approved oil.
The low engine oil level warning light should not be
ignored. Extended driving with the light illuminated
could result in serious engine damage that is not
covered by the Mercedes-Benz Limited Warranty.
In addition to the warning lamp, the engine oil level
should be periodically checked with the dipstick or via
the oil level indicator in the odometer display field, for
example during a fuel stop, or before a long trip (see
engine oil level indicator on page 96 and checking
engine oil on page 255).Low engine coolant level warning
When the coolant level warning lamp comes
on while driving, then the coolant level has
dropped below the required level, or the
coolant temperature is in the red zone. If no leaks are
noticeable and the engine temperature does not
increase, continue to drive to the nearest service station
and have coolant added to the coolant system, see
page 256. If the engine temperature reaches the red
zone, move vehicle to an area which is in a safe distance
from the roadway and turn off the engine. Also see
coolant temperature gauge on page 87.
The low engine coolant level warning should not be
ignored. Extended driving with the symbol displayed
may cause serious engine damage not covered by the
Mercedes-Benz Limited Warranty.
In cases of major or frequent minor coolant loss, have
the cooling system checked at your authorized
Mercedes-Benz Light Truck Center as soon as possible.
Notes:
Do not drive without coolant in the cooling system. The
engine will overheat causing major engine damage.
Monitor the coolant temperature gauge while driving.

247 Malfunction and indicator lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Low windshield and headlamp washer system fluid
level warning lamp
With the key in steering lock position 2, the
warning lamp comes on. It should go out
when the engine is running.
If the warning lamp does not go out after starting the
engine, or if it comes on while driving, there is approx.
1.3 US qt (1,25 l) washer fluid remaining the reservoir.
The reservoir should be refilled with MB Windshield
Washer Concentrate “S” and water (or commercially
available premixed windshield washer solvent /
antifreeze, depending on ambient temperature, see
page 258) at the next opportunity. The reservoir for the
windshield and headlamp washer systems is located in
the engine compartment.
Note:
If the warning lamp comes on during subzero wether,
please check the concentration of the washer fluid in
the tank. If the concentration is not sufficient, the fluid
may have frozen. After the fluid in the tank thaws,
correct the concentration level. Brake pad wear indicator lamp
With the key in steering lock position 2, the
indicator lamp comes on and goes out when
the engine is running.
If the indicator lamp lights up during braking, this
indicates that the brake pads are worn down.
Have the brake system checked at your authorized
Mercedes-Benz Light Truck Center as soon as possible.
FSS indicator
FSS indicator (Service A), see page 94.
FSS indicator (Service B), see page 94.
The symbols appear in the main odometer display field
prior to the next suggested service. Depending on
operating conditions throughout the year, the next
service is calculated and displayed in days or distance
remaining. See page 94 for notes on the flexible service
system (FSS).

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.