2002 MERCEDES-BENZ ML320 service indicator

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).

326 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
ETS (4-ETS+) ................................................................... 221
LOW RANGE – 4-ETS+ ............................................. 222
Express opening and
closing of power windows ....................................... 122
Exterior lamp switch ....................................................... 97
Daytime running lamp mode .................................. 100
Exterior lamps ................................................................ 282
Additional turn signals on
the exterior mirror ...............................................288
Adjusting headlamp aim .......................................... 290
Fog lamp assembly ................................................... 286
Fog lamps ................................................................... 103
Headlamp assembly ........................................ 283, 284
Headlamps ................................97, 283, 284, 290, 300
High mounted stop lamp .........................................289
License plate lamps .................................................. 289
Low and high beam ............................................97, 285
Parking lamp .......................................................97, 285
Replacing bulbs ......................................................... 282
Side marker lamp ......................................................285
Standing lamp .....................................................97, 285
Taillamp assemblies ................................................. 287
Turn signal lamp .................................................97, 285
Exterior mirror, front passenger side,
parking position .......................................................... 78Exterior rear view mirrors .............................................. 77
Electrically folding ...................................................... 79
Parking position ..........................................................78
FFirst aid kit ..................................................................... 250
Flat tire
See Changing wheels .............................................. 267
Flexible service system (FSS) ........................................ 94
FSS indicator lamp ............................................. 85, 247
Floor plates
Removable .................................................................. 147
Fog lamp switch ............................................................. 103
Four ETS
LOW RANGE – 4-ETS+ ............................................ 222
Malfunction indicator lamp .................................... 243
Four wheel electronic traction system (4-ETS+) .......221
Malfunction indicator lamp .................................... 243
Fuel
Gasoline additives ..................................................... 318
Premium unleaded gasoline ................... 236, 315, 317
Fuel filler flap
Manual release ......................................................... 295
Fuel requirements ......................................................... 317

331 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Rear seat head restraints .............................................. 143
Adjusting .................................................................... 143
Removal ...................................................................... 143
Rear view mirrors
Exterior ......................................................................... 77
Inside ............................................................................ 75
Rear window defroster .................................................. 121
Rear window wiper/washer ......................................... 106
Remote control ................................................................. 24
Battery replacement ................................................. 292
Changing batteries ................................................... 292
Operation ..................................................................... 26
Synchronizing remote control ................................ 293
Removable cargo floor plates ....................................... 147
Replacement keys ............................................................ 25
Replacing bulbs .............................................................. 282
Replacing wiper blade insert .......................................295
Reporting safety defects ................................................. 16
Residual engine heat utilization (REST) .....................117
Roadside assistance ......................................................... 10
Roadside assistance call
See Tele Aid ............................................................... 166
Roof rack .........................................................................296
SSafety guidelines for the seat belt, emergency
tensioning retractor and airbag ................................66
Screwdriver .................................................................... 259
Seat belt warning lamp ................................................ 245
Seat belts ...........................................................................48
Fastening ......................................................................50
Seat belt nonusage warning system .........................49
Unfastening .................................................................. 52
Warning lamp ........................................................... 245
Seat belts and integrated restraint system ..................48
Seat bench ....................................................................... 139
Seats, folding (Third row seats) ................................... 144
Seats, front ........................................................................ 38
Heated seats ................................................................. 46
Manual seats ................................................................40
Memory function .........................................................43
Power seats .................................................................. 41
Service indicator
See Flexible service system (FSS) ............................ 94
Side marker lamp .......................................................... 285
Sliding/pop-up roof ........................................................126
Emergency operation .............................................. 294
Express opening ........................................................127
Synchronizing .......................................................... 294

332 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Snow chains .................................................................... 199
SOS-call
See Tele Aid ............................................................... 166
Space-saver tire
Air pump .................................................................... 261
Spare parts service ........................................................ 306
Spare wheel .................................................................... 264
Space-saver tire ......................................................... 265
Split rear seat bench ..................................................... 139
Easy entry/exit feature ............................................ 142
Rear seat head restraints ......................................... 143
SRS indicator lamp ........................................................ 242
SRS malfunction .............................................................. 60
Start lock-out .................................................................... 25
Starting and turning off the engine ............................ 182
Steering lock ................................................................... 180
Steering wheel
Adjustable .................................................................... 74
Indicator lamp ...........................................................244
Stop lamp, high mounted ............................................. 289
Storage compartments
Center console ........................................................... 133
Compartment under front passenger seat ............ 134
Glove box .................................................................... 133
Storing mirror positions ................................................. 78
Stowing items in the vehicle ........................................252Stranded vehicle .............................................................281
Sun visors ........................................................................ 131
Supplemental restraint system (SRS) ........................... 56
Synchronizing remote control .................................... 293
TTachometer ........................................................................ 88
Technical data ................................................................ 309
Electrical system ....................................................... 312
Main dimensions ...................................................... 313
Rims and tires ................................................... 310, 311
Weights ....................................................................... 312
Tele Aid ............................................................................ 166
Emergency calls ........................................................ 167
Information ................................................................ 172
Initiating an emergency call manually .................. 169
Roadside Assistance ................................................. 170
Telephone, general ......................................................... 157
Telephones and two-way radios ................................... 164
Telescoping steering column
Adjusting ...................................................................... 74
Indicator lamp .......................................................... 244
The first 1 000 miles (1 500 km) ................................ 165
Third row seats ............................................................... 144