ECU MERCEDES-BENZ ML320 2002 W163 Owner's Manual

2 Contents
Headlamp mode ............................... 99
Night security illumination ......... 101
Locator lighting .......................... 102
Fog lamp switch ............................ 103
Hazard warning flasher
switch .......................................... 104
Headlamp cleaning system .......... 104
Windshield wiper/washer
switch .......................................... 105
Rear window wiper/washer ......... 106
Automatic climate control ............ 108
Dust filter ..................................... 111
Basic setting –
automatic mode .......................... 112
Programming the basic
temperature setting ....................113
Special settings ...........................114
Air volume, manual ....................114
Air distribution, manual ............114
Defroster/Windows fogged up on
the inside ......................................115
Air recirculation ..........................116
Economy mode ............................117Residual engine
heat utilization ............................ 117
Switching the
automatic climate control
on and off ..................................... 118
Switching off the
rear passenger compartment
ventilation and the
rear control panel ....................... 118
Rear passenger compartment
climate control .......................... 119
Manual setting of air volume
and air distribution in the rear
passenger compartment ............ 119
Rear passenger compartment
adjustable air outlets ............... 120
Rear window defroster ..................121
Power windows .............................. 122
Rear quarter windows .................. 125
Sliding/pop-up roof ....................... 126
Interior lighting ............................. 128
Sun visors ........................................ 131
Illuminated vanity mirrors ........... 131
Interior .............................................132Storage compartments,
armrest and cup holder ........... 132
Glove box ..................................... 133
Armrest in rear bench seat .......... 136
Ashtrays .......................................... 137
Lighter ............................................. 138
Split rear seat bench ..................... 139
Easy entry/exit feature ............. 142
Rear seat head restraints .......... 143
Third row seats .............................. 144
Removable cargo floor plates ....... 147
Enlarged cargo area ....................... 149
Cargo tie-down rings ..................... 150
Hooks ............................................... 151
Partition net .................................... 151
Loading instructions ..................... 154
Cargo area cover blind .................. 155
Telephone, general ........................ 157
Cellular telephone ......................... 157
Garage door opener ....................... 158

22 Contents - Operation
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
OperationVehicle keys ...................................... 24
Start lock-out .................................... 25
General notes on the
central locking system ............... 25
Central locking system ................... 26
Radio frequency
remote control .............................. 26
Unlocking the liftgate .................. 27
Panic button .................................. 28
Mechanical keys ........................... 29
Doors .................................................. 30
Central locking switch .................... 32
Automatic central locking .............. 33
Emergency unlocking
in case of accident ...................... 33
Liftgate ............................................... 34
Antitheft alarm system ................... 36
Tow-away alarm and
glass breakage sensor ................ 37
Seats, front ........................................ 38
Manual seats ................................. 40
Power seats ................................... 41Head restraint .............................. 42
Memory function ......................... 43
Heated seats ..................................... 46
Seat belts and
integrated restraint system ....... 48
Seat belts .......................................... 48
Seat belt nonusage
warning system ............................ 49
BabySmart
TM airbag
deactivation system ................... 55
Self-test BabySmart
TM without
special child seat installed ......... 55
Supplemental restraint
system (SRS) ............................... 56
Emergency tensioning
retractor (ETR) ............................ 57
Airbags .............................................. 58
Safety guidelines for
the seat belt, emergency
tensioning retractor
and airbag ..................................... 66
Infant and
child restraint systems ............... 68
Adjustable steering wheel ............... 74
Inside rear view mirror .................. 75Antiglare night position .............. 75
Exterior rear view mirrors ............. 77
Exterior rear view mirror,
electrically folding ....................... 79
Instrument cluster ........................... 82
Indicator lamps in
the instrument cluster ............... 84
Trip computer ................................... 89
Flexible service system
(FSS) .............................................. 94
Engine oil level indicator ................ 96
Exterior lamp switch ....................... 97
Headlamp mode ............................... 99
Night security illumination ......... 101
Locator lighting .......................... 102
Fog lamp switch ............................ 103
Hazard warning flasher
switch .......................................... 104
Headlamp cleaning system .......... 104
Windshield wiper/washer
switch .......................................... 105
Rear window wiper/washer ......... 106
Automatic climate control ............ 108
Dust filter ..................................... 111

25 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Obtaining replacement keys
Your vehicle is equipped with a theft deterrent locking
system requiring a special key manufacturing process.
For security reasons, replacement keys can only be
obtained from your authorized Mercedes-Benz Light
Truck Center.
Start lock-out
Important!
Removing the key from the steering lock activates the
start lock-out. The engine cannot be started.
Turning the key in the steering lock to position 2
deactivates the start lock-out.
Note:
In case the engine cannot be started and the
messagesÁ and î are shown in the odometer
display field, the system is not operational. Contact an
authorized Mercedes-Benz Light Truck Center or call
1-800-FOR-MERCedes (in the USA), or 1-800-387-0100
(in Canada).General notes on the central locking system
If the key in the steering lock is in position 1 or 2, the
vehicle cannot be locked or unlocked with the remote
control.
If the vehicle cannot be locked or unlocked:
•Check the batteries of the remote control, see
page 292.
•Synchronize the remote control, see page 293.

39 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
Prior to operating the vehicle, the driver should adjust
the seat height for proper vision as well as fore / aft
placement and backrest angle to insure adequate
control, reach, operation, and comfort. The head
restraint should also be adjusted for proper height. See
also airbag section on page 58 for proper seat
positioning.
In addition, also adjust the steering wheel to ensure
adequate control, reach, operation, and comfort.
Both the inside and outside rear view mirrors should be
adjusted for adequate rearward vision.
Fasten seat belts. Infants and small children should be
seated in a properly secured restraint system that
complies with U.S. Federal Motor Vehicle Safety
Standard 213 and Canadian Motor Vehicle Safety
Standard 213.
All seat, head restraint, steering wheel, and rear view
mirror adjustments as well as fastening of seat belts
should be done before the vehicle is put into motion.
Wa r n i n g !
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM system
installed in the vehicle to deactivate the passenger
side front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury can result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in the back
seats and be seated in an appropriate infant or
child restraint system, which is properly secured
with the vehicle’s seat belt, fully in accordance
with the child seat manufacturer’s instructions.A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.

48 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Seat belts and integrated restraint system
Your vehicle is equipped with seat belts for all seats,
emergency tensioning retractors for front and second
row outboard seat belts, dual front airbags and door
mounted side impact airbags. Their protective functions
are designed to complement one another.
Seat belts
Important!
Laws in most states and all Canadian provinces require
seat belt use.
All states and provinces require use of child restraints
that comply with U.S. Federal Motor Vehicle Safety
Standard 213 and Canadian Motor Vehicle Safety
Standard 213.
All child restraint systems are designed to be secured in
vehicle seats by lap belts or the lap belt portion of a lap-
shoulder belt.
For your safety and that of your passengers we strongly
recommend their use.
Wa r n i n g !
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM system
installed in the vehicle to deactivate the passenger
side front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury will result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle’s seat belt, fully in accordance with the
child seat manufacturer’s instructions.A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.

54 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Wa r n i n g !
USE CHILD RESTRAINTS PROPERLY.
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM system
installed in the vehicle to deactivate the passenger
front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury will result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle’s seat belt, fully in accordance with the
child seat manufacturer’s instructions.
Wa r n i n g !
USE CHILD RESTRAINTS PROPERLY.A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning.

68 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Infant and child restraint systems
We recommend that all infants and children be properly
restrained at all times while the vehicle is in motion. All
lap-shoulder belts except the driver’s seat belt have
special seat belt retractors for secure fastening of child
restraints.
To fasten a child restraint follow child restraint
instructions for routing. Then pull shoulder belt out
completely and let it retract. During the seat belt
retraction a ratcheting sound can be heard to indicate
that the special seat belt retractor is activated. The belt
is now locked. Push down on child restraint to take up
any slack.
To deactivate, release seat belt buckle and let seat belt
retract completely. The seat belt can again be used in
the usual manner.
Note:
For child seats with mounting fittings for tether
anchorages refer to page 70 (installation of infant and
child restraint systems).Important!
The use of infant or child restraints is required by law in
all 50 states and all Canadian provinces.
Infants and small children should be seated in an
appropriate infant or child restraint system properly
secured by a lap-shoulder belt, and that complies with
U.S. Federal Motor Vehicle Safety Standard 213 and
Canadian Motor Vehicle Safety Standard 213.
A statement by the child restraint manufacturer of
compliance with this standard can be found on the
instruction label on the restraint and in the instruction
manual provided with the restraint.
When using any infant or child restraint system, be sure
to carefully read and follow all manufacturer’s
instructions for installation and use.
Please read and observe warning labels affixed to inside
of vehicle and to infant or child restraints.
Wa r n i n g !
Never release the seat belt buckle while vehicle is
in motion, since the special seat belt retractor will
be deactivated.

69 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Wa r n i n g !
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM System
installed in the vehicle to deactivate the passenger
front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury can result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an infant or child restraint system,
which is properly secured with the vehicle’s seat
belt, fully in accordance with the child seat
manufacturer’s instructions.
Infants and small children should never share a
seat belt with another occupant. During an
accident, they could be crushed between the
occupant and seat belt.Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning for children from 41 lbs. to
the point where a lap / shoulder belt fits properly
without one.When the child restraint is not in use, remove it
from the vehicle or secure it with the seat belt to
prevent the child restraint from becoming a
projectile in the event of an accident.Do not leave children unattended in the vehicle;
even if the children are secured in a child restraint
system. Unsupervised children in a child restraint
system may use vehicle equipment and may cause
serious personal injury.

70 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Installation of infant and child restraint systems
To secure a tether strap to the anchorage, securely
fasten the hook (1), which is part of the tether strap, to
the anchorage ring (2). For safety, please make sure that
the hook has attached to the ring beyond the safety
catch, as illustrated.Vehicle without third row seats
3Tether anchorages for second row seats
4Tether anchorages for third row seats (optional)
This vehicle is provided with three tether
anchorages (3) for a top tether strap behind the
second row seats.
Note:
Do not use the tether anchorages (4) for a top tether
strap on a second row seat.

73 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Install a “LATCH” type child seat according to the
manufacturer’s instructions.
The child seat must be firmly attached in the right and
left side mounting fittings (1).
Non-“LATCH” type child seats may also be used and are
capable of being installed using the vehicle’s seat belt
system. Install child seat according to the
manufacturer’s instructions.
Note:
With a child seat installed in the left rear seat, the seat
belt for the center seat occupied by a passenger must
operate freely. Guide seat belt between its seat cushion
mount and backrest mount along outside of right side
child seat mount.
Wa r n i n g !
The “LATCH” mounting fittings are intended for
children up to 22 kg (50 lbs) in weight.Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning for children from 41 lbs. to
the point where a lap / shoulder belt fits properly
without one.Install child seat according to manufacturer’s
instructions.The child seat must be firmly attached in the right
and left side mounting fittings (1).An incorrectly mounted child seat may come loose
during an accident.Damaged or impact damaged child seats or child
seat mounting fittings must be replaced.Do not leave children unattended in the vehicle,
even if the children are secured in a child restraint
system.