2002 MERCEDES-BENZ ML320 engine

317 Fuels, coolants, lubricants etc.
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Premium unleaded gasoline
Caution!
To maintain the engine’s durability and performance,
premium unleaded gasoline must be used. If premium
unleaded is not available and low octane fuel is used,
follow these precautions:
•have the fuel tank filled only partially with unleaded
regular and fill up with premium unleaded as soon
as possible,
•avoid full throttle driving and abrupt acceleration,
•do not exceed an engine speed of 3000 rpm, if the
vehicle is loaded with a light load such as two
persons and no luggage,
•do not exceed 2 / 3 of maximum accelerator pedal
position, if the vehicle is fully loaded or operating in
mountainous terrain.Fuel requirements
Use only Premium unleaded meeting ASTM
standard D 439:
The octane number (posted at the pump) must be
91 min. It is an average of both the Research (R) octane
number and the Motor (M) octane number: [(R+M) / 2].
This is also known as ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates such as
Ethanol, IPA, IBA and TBA can be used provided the
ratio of any one of these oxygenates to gasoline does not
exceed 10%, MTBE not to exceed 15%.
The ratio of Methanol to gasoline must not exceed 3%
plus additional cosolvents.
Using mixtures of Ethanol and Methanol is not allowed.
Gasohol, which contains 10% Ethanol and 90% unleaded
gasoline, can be used.
These blends must also meet all other fuel requirements
such as resistance to spark knock, boiling range, vapor
pressure etc..

318 Fuels, coolants, lubricants etc.
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Gasoline additives
A major concern among engine manufacturers is carbon
build up caused by gasoline. Mercedes-Benz
recommends the use of only quality gasoline containing
additives that prevent the build up of carbon deposits.
After an extended period of using fuels without such
additives, carbon deposits can build up especially on the
intake valves and in the combustion area, leading to
engine performance problems such as:
•warm-up hesitation,
•unstable idle,
•knocking / pinging,
•misfire,
•power loss.
Do not blend other specific fuel additives with fuel.
They only result in unnecessary cost, and may be
harmful to the engine operation.
Damage or malfunctions resulting from poor fuel
quality or from blending specific fuel additives are not
covered by the Mercedes-Benz Limited Warranty.Coolants
The engine coolant is a mixture of water and
anticorrosion / antifreeze, which provides:
•corrosion protection,
•freeze protection,
•boiling protection (by increasing the boiling point).
The cooling system was filled at the factory with a
coolant providing freeze protection to approximately
-35
°F (-37
°C) and corrosion protection.
If the antifreeze mixture is effective to -22
°F (-30
°C), the
boiling point of the coolant in the pressurized cooling
system is reached at approx. 266
°F (130
°C).
The coolant solution must be used year round to provide
the necessary corrosion protection and increase in the
boil-over protection. You should have it replaced every
3years.
To provide the important corrosion protection, the
solution must be at least 45% anticorrosion / antifreeze
(equals a freeze protection to approx. - 22°F [-30
°C]). If
you use a solution that is more than 55% anticorrosion/
antifreeze (freeze protection to approx. - 49
°F [-45
°C])-,

319 Fuels, coolants, lubricants etc.
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index the engine temperature will increase due to the lower
heat transfer capability of the solution. Therefore, do not
use more than this amount of anticorrosion / antifreeze.
If the coolant level is low, water and MB anticorrosion/
antifreeze should be used to bring it up to the proper
level (have cooling system checked for signs of leakage).
The water in the cooling system must meet minimum
requirements, which are usually satisfied by normal
drinking water. If your are not sure about the water
quality, consult your authorized Mercedes-Benz Light
Truck Center.
Anticorrosion/antifreeze
Your vehicle contains a number of aluminum parts. The
use of aluminum components in motor vehicle engines
necessitates that anticorrosion / antifreeze coolant used
in such engines be specifically formulated to protect the
aluminum parts. (Failure to use such anticorrosion/
antifreeze coolant will result in a significantly
shortened service life.)
Therefore the following product is strongly
recommended for use in your vehicle: Mercedes-Benz
Anticorrosion / antifreeze agent.Before the start of the winter season (or once a year in
the hot southern regions), you should have the
anticorrosion / antifreeze concentration checked. The
coolant is also regularly checked each time you bring
your vehicle to your authorized Mercedes-Benz Light
Truck Center for service.
Anticorrosion / antifreeze quantity
Approx. freeze protection
– 35
°F
(– 37°C)– 49
°F
(– 45°C)
6.4 US qt
(6.0 l)7. 0 U S q t
(6.6 l)

322 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Index
AABS (Antilock brake system) ....................................... 219
LOW RANGE – ABS .................................................. 220
Malfunction indicator lamp ..................................... 244
Adjustable steering wheel .............................................. 74
Indicator lamp ...........................................................244
Adjusting headlamp aim ...............................................290
Air conditioner refrigerant ........................................... 316
Air pump ......................................................................... 261
Air recirculation .............................................................116
Airbag deactivation system ............................................ 55
Airbag OFF indicator lamp ........................................... 244
Airbags .............................................................................. 58
Alarm system ............................................................. 36, 37
Anticorrosion/antifreeze ..................... 200, 257, 315, 319
Antiglare night position ................................................. 75
Antilock brake system (ABS) ....................................... 219
LOW RANGE – ABS .................................................. 220
Malfunction indicator lamp ..................................... 244
Antitheft alarm system ................................................... 36
Aquaplaning ................................................................... 196
AshtrayCenter console, front ................................................ 137
Rear passenger compartment ................................. 137
Automatic central locking .............................................. 33
Automatic climate control ............................................ 108
Adjustable air outlets,
rear passenger compartment .............................120
Air distribution, manual .......................................... 114
Air recirculation ........................................................ 116
Air volume, manual .................................................. 114
Defroster/Windows fogged up
on the inside ......................................................... 115
Economy mode .......................................................... 117
Programming the
basic temperature setting ................................... 113
Rear passenger compartment
climate control ...................................................... 119
Rear window defroster ............................................. 121
Residual engine heat utilization ............................. 117
Switching off the rear passenger
compartment ventilation and
rear automatic climate control ........................... 118
Switching on and off ................................................. 118
Windshield fogged up on outside ........................... 115
Automatic climate control rear
Manual setting of air volume and
air distribution in the rear passenger
compartment ......................................................... 119

324 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Central locking system ................................................... 26
Automatic central locking ......................................... 33
Locking and unlocking .............................................. 27
Mechanical keys .......................................................... 29
Panic button ................................................................. 28
Remote control ............................................................ 26
Unlocking the liftgate ................................................. 27
Vehicle keys ................................................................. 24
Changing wheels ...........................................................267
Inflating the space-saver tire .................................. 271
Charge indicator lamp ................................................... 245
CHECK ENGINE
malfunction indicator lamp ..................................... 240
Check regularly and before a long trip ......................238
Checking engine oil level
Via engine oil level indicator .................................... 96
Via oil dipstick ...........................................................255
Child restraint .............................................. 39, 48, 55, 68
Child seat mounts
See Infant and child restraint systems .................... 72
Child seat mounts – “LATCH” type ............................... 72
Cleaning and care of the vehicle .................................298
Climate control
Special settings ..........................................................114
Clock, adjusting ............................................................... 87
Compartment under front passenger seat ................. 134Consumer information ................................................. 320
Control and operation of radio transmitters .............. 164
Coolant level
Adding ........................................................................ 257
Checking .................................................................... 256
Low engine coolant level warning ......................... 246
Coolant temperature gauge ............................................87
Coolants ........................................................................... 318
Anticorrosion/antifreeze quantity ......................... 318
Low engine coolant level warning ......................... 246
Cover blind, cargo area ................................................. 155
Cruise control ................................................................. 214
Cup holder
Instrument panel ...................................................... 134
Rear center console .................................................. 136
Cup holder in front seat armrest ................................. 135
DDeep water
Driving instructions .................................................201
Display illumination ........................................................86
Doors ..................................................................................30
Drinking and driving ..................................................... 192
Drive sensibly - save fuel .............................................. 192

325 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Driving instructions ...................................................... 192
Driving off ....................................................................... 194
Dust filter ......................................................................... 111
EEBP (Electronic brake proportioning) ........................ 222
Electrical outlet .............................................................. 252
Electronic brake proportioning (EBP) ........................ 222
Electronic stability program (ESP) .............................. 223
Control switch ...........................................................225
Malfunction indicator lamp ..................................... 243
Synchronizing ...........................................................224
Warning lamp ............................................................243
Electronic traction system (4-ETS+) ........................... 221
LOW RANGE – 4-ETS ...............................................222
Malfunction indicator lamp ..................................... 243
Emergency call
See Tele Aid ............................................................... 166
Emergency tensioning retractor (ETR) ......................... 57
Emergency unlocking in case of accident ................... 33
Emission control ............................................................ 179
Emission control label .................................................. 307
Engine compartment .....................................................253Engine malfunction
CHECK ENGINE
malfunction indicator lamp ............................... 240
Engine oil additives ....................................................... 316
Engine oil consumption ............................................... 256
Engine oil level
Checking .............................................................. 96, 255
Warning ..................................................................... 246
Engine oil level indicator ................................................ 96
Engine oils ...................................................................... 316
Capacities ................................................................... 314
Low engine oil level warning ................................. 246
Engine overheating ..........................................................87
Engine speed limit
Overrevving .................................................................. 88
Enlarged cargo area ....................................................... 149
Entrance lamps ............................................................... 130
ESP
LOW RANGE — ESP .................................................. 226
ESP (Electronic stability program) ............................. 223
Control switch .......................................................... 225
Malfunction indicator lamp .................................... 243
Synchronizing .......................................................... 224
Warning lamp ........................................................... 243
ETR (Emergency tensioning retractor) .........................57

329 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Locator lighting .............................................................. 102
Lockable storage compartment .................................... 134
Locking and unlocking the vehicle ............................... 27
Low beam
See Exterior lamp switch ........................................... 97
Low engine coolant level warning .............................. 246
Low engine oil level warning .......................................246
LOW RANGE
Indicator lamp ...........................................................243
LOW RANGE mode ........................................................ 227
LOW RANGE – 4-ETS+ ............................................. 222
LOW RANGE – ABS .................................................. 220
LOW RANGE – ESP ................................................... 226
MMaintenance ................................................................... 165
Malfunction and indicator lamps
in the instrument cluster .........................................240
Manual locking/unlocking the doors ........................... 29
Manual operation of sliding/pop-up roof ................... 294
Manual seat, front ........................................................... 40Manual setting of air volume and
air distribution in the
rear passenger compartment .................................. 119
MCS, radio and telephone ............................................ 164
Mechanical keys ...............................................................29
Memory function ............................................................. 43
Recalling positions from memory ............................ 44
Storing positions into memory ................................. 43
Mirror, exterior
Parking position ..........................................................78
Mirror, exterior, adjusting .............................................. 77
Mirror, exterior, parking position,
front passenger side ...................................................78
Mirror, exterior, rear view .............................................. 77
Mirror, inside, rear view .................................................75
Mirrors, vanity ................................................................ 131
NNight security illumination .......................................... 101

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