2003 MERCEDES-BENZ E320 4MATIC WAGON engine

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

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.

51 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Multicontour seat (optional)
We recommend to adjust the multicontour seat in the
following order:
1Seat cushion depth
2Backrest bottom
3Backrest center
4Side bolster adjustmentSome models may be equipped with multicontour seats.
These seats have movable seat cushions, and inflatable
air cushions built into the backrest to provide additional
lumbar and side support.
The seat cushion movement and amount of backrest
cushion height and curvature can be continuously
varied with regulators (1, 2 and 3) after turning the
electronic key in steering lock to position 2.
The side bolsters of the backrest can be adjusted with
rocker switch (4):
•press to the right – increase side support,
•press to the left – decrease side support.
If the engine is turned off, the last cushion setting is
retained in memory, and automatically adjusts the
cushion to this setting when the engine is restarted.
1
234
P91.25-2025-26

87 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Push buttonsVandWfor intensity of instrument
lamps, seepage89
2Push buttonJ for resetting trip odometer, see
page 91, or to acknowledge a malfunction or
warning message, see page 108
3Coolant temperature gauge, see page 90
4Fuel gauge with reserve and fuel cap placement
warning lamp, see page 246
5Outside temperature indicator, see page 90
6Left turn signal indicator lamp, see combination
switch on page 122
7Electronic stability program (ESP) warning lamp,
see page 2478Speedometer
9Trip odometer, see page 91 and 96
10Main odometer, see page 96
11Multifunction display, see page 92,
or FSS indicator, see page 114,
or engine oil level indicator, see page 117
12Right turn signal indicator lamp, see combination
switch on page 122
13Tachometer, see page 91
14Gear range indicator display, see page 206
15Clock
To set the time, see page 110

88 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Indicator lamps in the instrument cluster
High beam
ABS malfunction, see page 248
Brake fluid low (except Canada).
Parking brake engaged, see page 245
Brake fluid low (Canada only).
Parking brake engaged, see page 245
BAS malfunction, see page 247
ESP malfunction, see page 247
Fasten seat belts, see page 248
ESP. Adjust driving to road condition,
seepage247If the “CHECK ENGINE” malfunction
indicator lamp comes on when the engine is
running, it indicates a malfunction of the
fuel management system, emission control
system, systems which impact emissions, or
the fuel cap is not closed tight. In all cases,
we recommend that you have the
malfunction checked as soon as possible,
seepage244
SRS malfunction, see page 246
Function indicator lamp on the center console
Front passenger airbag automatically
switched off, see page 249
ABSBRAKE
CHECK
ENGINESRS

90 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Coolant temperature gauge (3)
During severe operating conditions and stop-and-go city
traffic, the coolant temperature may rise close to the red
marking.
The engine should not be operated with the coolant
temperature in the red zone. Doing so may cause
serious engine damage which is not covered by the
Mercedes-Benz Limited Warranty.Outside temperature indicator (5)
The temperature sensor is located in the front bumper
area. Due to its location, the sensor can be affected by
road or engine heat during idling or slow driving. This
means that the accuracy of the displayed temperature
can only be verified by comparison to a thermometer
placed next to the sensor, not by comparison to external
displays (e.g. bank signs etc.).
Adaptation to ambient temperature takes place in steps
and depends on the prevailing driving conditions
(stop-and-go or moderate, constant driving) and amount
of temperature change.
Wa r n i n g !
• Driving when your engine is badly overheated
can cause some fluids which may have leaked
into the engine compartment to catch fire. You
could be seriously burned.• Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine if
you see or hear steam coming from it.Turn off the engine, get out of the vehicle and do
not stand near the vehicle until it cools down.
Wa r n i n g !
The outside temperature indicator is not designed
to serve as an Ice-Warning Device and is therefore
unsuitable for that purpose. Indicated
temperatures just above the freezing point do not
guarantee that the road surface is free of ice.

91 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trip odometer (9)
To r es et to “ 0 ” mil es / k m:
Activate the instrument cluster if it is not already
activated by pressing the J button on the instrument
cluster.
Press button è or ÿ on the multifunction
steering wheel repeatedly until the trip odometer
appears if it is not displayed, see page 96.
Press buttonJ(2) on the instrument cluster.Tach o m e te r ( 13 )
The red marking on tachometer denotes excessive
engine speed.
Avoid this engine speed, as it may result in serious
engine damage that is not covered by the
Mercedes-Benz Limited Warranty.
To help protect the engine, the fuel supply is interrupted
if the engine is operated within the red marking.

93 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Depending on your vehicle’s equipment, you may use
the buttons on the multifunction steering wheel to call
up, control and set the following systems in the
multifunction display:
1Trip odometer and main odometer, see page 96
Vehicle speed, see page 96
Flexible service system (FSS), see page 114
Engine oil level indicator, see page 117
2Audio systems, see page 97
Radio, see page 97
CD player (optional), see page 98
Cassette player, see page 99
3Navigation system (optional), see page 105
4Malfunction message memory, see page 108
5Individual settings, see page 110
6Trip computer, see page 106
After start
After reset
Fuel tank content
7Telephone (if so equipped), see page 100Press the è or ÿ button repeatedly until the
required system is displayed.
Pressing the è button advances the display to the
next system.
Pressing the ÿ button returns the display to the
previous system.
You may call up additional displays within some of these
categories by pressing the j or k button.
Wa r n i n g !
A driver’s attention to the road must always be his /
her primary focus when driving. For your safety and the safety of others, selecting
features through the multifunction steering wheel
should only be done by the driver when traffic and
road conditions permit it to be done safely.
Programming individual settings in the system can
only be made while the vehicle is at standstill.