2003 MERCEDES-BENZ E320 4MATIC WAGON Owner's Manual

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 .................................... 26
General notes on the central
locking system ............................. 26
Central locking system ................... 27
Radio frequency and infrared
remote control .............................. 27
Opening and closing windows
and sliding/pop-up roof from
outside ........................................... 30
Panic button .................................. 31
Mechanical keys ........................... 31
Doors .................................................. 32
Central locking switch .................... 34
Automatic central locking .............. 35
Emergency unlocking in case of
accident ........................................ 35
Tailgate .............................................. 36
Antitheft alarm system ................... 39
Tow-away alarm ................................ 41
Power seats front ............................. 42
Front seat head restraints .............. 48Rear seat head restraints ............... 49
Multicontour seat .............................51
Seat heater ........................................ 52
Seat ventilation ................................ 55
Seat belts and integrated restraint
system .......................................... 57
Seat belts .......................................... 57
Seat belt nonusage warning
system .......................................... 58
BabySmart
TM airbag deactivation
system .......................................... 65
Self-test BabySmart
TM without
special child seat installed ......... 65
Supplemental restraint
system (SRS) ............................... 66
Emergency tensioning
device (ETD) ................................ 67
Airbags .............................................. 68
Safety guidelines for the seat belt,
emergency tensioning device and
airbag ........................................... 75
Infant and child restraint
systems ........................................ 77
Steering wheel adjustment .............81
Rear view mirrors ........................... 82Instrument cluster ........................... 86
Multifunction steering wheel,
multifunction display ................. 92
Trip and main odometer, vehicle
speed, FSS and engine oil level
display .......................................... 96
Audio systems .................................. 97
Radio .............................................. 97
CD player ....................................... 98
Cassette player ............................. 99
Telephone ........................................ 100
Telephone book .......................... 100
Redialing ..................................... 102
Incoming call .............................. 104
Navigation system .......................... 105
Trip computer ................................. 106
Malfunction message memory .... 108
Individual settings ..........................110
Setting the audio volume ..............113
Flexible service system (FSS) .......114
Engine oil level indicator ...............117
Engine oil consumption .................118
Exterior lamp switch ......................119
Night security Illumination ......... 120

23 Contents – Operation
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Headlamp cleaning system .......... 121
Combination switch ...................... 122
Rear window wiper / washer ....... 124
Hazard warning flasher switch ... 125
Automatic climate control ............ 126
Display and controls .................. 128
Basic setting ................................ 129
Special settings .......................... 129
Defogging windows .................... 129
Defrosting .................................... 129
Rear window defroster .............. 130
Air distribution ........................... 130
Air volume ................................... 130
Air recirculation ......................... 131
Dust filter .................................... 131
Activated charcoal filter ............ 132
Residual engine heat
utilization .................................... 132
Front center console compartment
ventilation ................................... 133
Rear passenger compartment
adjustable air outlet ................... 134Audio and telephone,
operation ....................................135
Power windows ...............................154
Sliding / pop-up roof ......................157
Interior lighting ..............................159
Entrance lamps, exit lamps
in doors .......................................159
Reading lamps rear
compartment ..............................160
Sun visors ........................................ 161
Illuminated vanity mirrors ........... 161
Interior .............................................162
Armrest, rear bench .......................162
Cup holder in rear
bench armrest ............................162
Glove box .........................................163
Cup holder and coin holder in
glove box lid .................................163
Storage compartment above ashtray
in center console .......................164
Storage compartments in center
console ........................................164Cup holder in center console ....... 165
Ashtrays .......................................... 166
Lighter ............................................. 168
Split rear bench seat ..................... 169
Rear-facing bench seat .................. 175
Loading instructions ..................... 177
Cargo tie-down rings ..................... 178
Parcel net in front passenger
footwell ....................................... 178
Cellular telephone ......................... 179
Garage door opener ....................... 180

24 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Ve h i c l e k e y s
Included with your vehicle are 2 electronic keys with
integrated radio frequency and infrared remote controls
plus removable mechanical key.
The locking tabs for the mechanical key portion of the
two electronic keys are a different color to help
distinguish it.
Wa r n i n g !
When leaving the vehicle, always remove the
electronic key from the steering lock, and lock your
vehicle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may cause
an accident and/or serious personal injury.

25 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Electronic key
The electronic key has an integrated radio frequency
and infrared remote control, plus removable mechanical
key.
The remote control (1) operates all locks on the vehicle.
The mechanical key (2) works only in the driver’s door,
tailgate, and storage compartment locks.When using the mechanical key (2) for lock operations,
it can be removed by sliding it out of the remote control.
To do so, move locking tab (3) to the right and slide the
mechanical key (2) in direction of arrow (4).
The remote control transmitter is located in the
electronic key.
The infrared receivers are located in the front door
handles.
Notes:
Remove the mechanical key from the electronic key
when using valet parking service. To prevent access to
storage compartments lock them separately and retain
the mechanical key.
See page 36 for separate locking of tailgate and
page 163 for locking of glove box.
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 Center.
P80.35-2030-26
1
3
4
2

26 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Start lock-out
Important!
Removing the electronic key from the steering lock
activates the start lock-out. The engine cannot be
started.
Inserting the electronic key in the steering lock
deactivates the start lock-out.
Note:
In case the engine cannot be started (vehicle’s battery is
in order), the system is not operational. Contact an
authorized Mercedes-Benz 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 electronic key is inserted in the steering lock, the
vehicle cannot be locked or unlocked with the remote
control.
If the vehicle cannot be locked or unlocked:
•Aim transmitter eye at a receiver of either front door
handle. Check the batteries of the electronic key, see
page 304, or synchronize the remote control, see
page 306.
•Use the mechanical key to unlock the vehicle. To
start engine, insert the electronic key in the steering
lock. There could be a slight delay until the
electronic key can be turned in the steering lock.
Important!
When unlocking the driver’s door with the mechanical
key, the exterior lamps will flash and the alarm will
sound.
To cancel the alarm, insert the electronic key in the
steering lock or press buttonŒ or‹ on the
electronic key.

27 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Central locking system
Radio frequency and infrared remote control
The electronic key has an integrated radio frequency
and infrared remote control.
Due to the extended operational range of the remote
control, it could be possible to unintentionally lock or
unlock the vehicle by pressing the transmit button. If
one of the transmit buttons is pressed, the battery check
lamp lights up briefly – indicating that the batteries are
in order. See page 304 for checking batteries.
The vehicle doors, tailgate and fuel filler flap can be
centrally locked and unlocked via remote control.
Opening and closing the windows and sliding / pop-up
roof remotely can only be done with the infrared portion
of the remote control. Aim transmitter eye at a
receiver (6 or 7), press and hold transmit button Œ
or ‹.
If the electronic key is inserted in steering lock, the
vehicle cannot be locked or unlocked with the remote
control.1Transmit button
‹ Locking
ΠUnlocking
2Lamp for battery check (see page 304 for changing
batteries if it does not light up briefly)
3PA N I C b u t t o n
4Transmitter eye
5Locking tab for mechanical key
P80.35-2033-26
2
1
4
3
5

28 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
6Infrared receiver in driver’s door handle7Infrared receiver in front passenger door handle
6
P80.30-2137-26
7
P80.30-2138-26

29 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Locking and unlocking with remote control
Unlocking:
Press transmit button Œ. All turn signal lamps blink
once to indicate that the vehicle is unlocked.
The remote control can be programmed for two kinds of
unlocking modes (see below):
Selective unlocking mode –
Press transmit button Œ o nce to un lock dr iver’s d oor
and fuel filler flap.
Press transmit button Πtwice to unlock all doors,
fuel filler flap, and tailgate.
Global unlocking mode –
Press transmit button Πonce to unlock all doors,
fuel filler flap, and tailgate.
Notes:
If the tailgate was previously locked separately, it will
remain locked, seepage36.
The presently active unlocking mode (selective or
global) can only be determined by unlocking the vehicle
with the remote control (see below for changing mode).If within 40 seconds of unlocking with the remote
control, neither door nor tailgate is opened, the
electronic key is not inserted in the steering lock, or the
central locking switch is not activated, the vehicle will
automatically lock.
Locking:
Press transmit button ‹ once. All turn signal lamps
blink three times to indicate that the vehicle is locked.
If they do not blink three times, a door or tailgate is not
properly closed.
Note:
If the vehicle cannot be locked or unlocked by pressing
the transmit button, then it may be necessary to change
the batteries in the electronic key (if ok, battery check
lamp in electronic key will light briefly when pressing
transmit button) or to synchronize the remote control,
see pages 304 and 306.