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

134 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear passenger compartment adjustable air outlet
To open air outlet, rotate wheel (1) upward.
The air outlet is adjustable.Important
This vehicle is equipped with an air conditioner system
that uses R-134a (HFC: hydrofluorocarbon) as a
refrigerant. Repairs should always be performed by a
qualified technician, and refrigerant should be collected
in a recovery system for recycling.
P68.00-2136-26
1

135 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Operation – audio and telephone
These instructions are intended to help you become
acquainted with your Mercedes- Benz car radio. They
contain useful tips and a detailed description of the user
functions.
The right to correct errors and make technical amendments is
reserved.
Operating safety1Optional equipment
Wa r n i n g !
In order to avoid distraction which could lead to an
accident, system settings should be entered with
the vehicle at standstill and systems should be
operated by the driver only when traffic conditions
permit. Always pay full attention to traffic
conditions first before operating system controls
while driving. Bear in mind that at a speed of just 30 mph
(approximately 50 km / h), your vehicle is covering
a distance of approximately 50 feet (approximately
14 m ) e v e r y s e c o n d .
Wa r n i n g !
Any alterations made to electronic components can
cause malfunctions.The radio, cassette deck, CD changer
1, telephone
1
and voice control system
1 are interconnected.
When one of the components is not operational or
has not been removed / replaced properly, the
function of other components may be impaired.
This condition might seriously impair the
operating safety of your vehicle.We recommend that you have any service work on
electronic components carried out by an
authorized Mercedes-Benz Center.

136 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Operating and display elements
1On / off, volume, see page 139
2Telephone mode selector, see page 151
3S e e k , s e e p a g e 141 , 14 5 a n d 14 9
4Radio mode selector, see page 141
5Tune, see page 141 and 142
Fast forward / reverse, see page 145 and 1496CD mode selector, see page 148
7Display panel, see page 143
8Alpha-numeric keypad for
station storage and frequency entry, see page 142
CD / Track access, see page 148 and 150
optional telephone, see page 151
9Function button, see page 142 and 150

137 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 10Soft keys for
radio band selection, see page 141
tone controls, see page 139
scan, see page 142
Tape eject, see page 144
Tape track select, see page 144
Dolby, see page 146
CD random / repeat, see page 150
11Tape mode selector, see page 143
Antitheft system
If the power supply to the
radio has been
interrupted,“CODE” will
appear on the display when it
is next switched on. The radio
will only work after the five-digit code has been entered
using the buttons on the right-hand control panel.The code number is shown on the Radio code card,
supplied with the radio.
Important!
Never leave the Radio code card in the vehicle. Keep it in
a safe place.

138 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Entering the code number
Switch on the radio.“CODE” will appear on the display.
Using the buttons on the alpha-numeric keypad, enter
the five digit code. Confirm by pressing the “OK” key.
If an incorrect code has been entered and confirmed,
“CODE” will reappear on the display. The correct code
must be entered once again.
If an incorrect code is entered
three times, “WAIT” will
appear on the display and the
radio will be locked out for
about 10 minutes.
Note:
The lock out time will only count down if the radio is left
switched on.Button and soft key operation
In these instructions, the alpha-numeric keypad (right
side of radio face) and the function buttons (left side of
the radio face) are referred to as “buttons” and the four
keys under the display are referred to as “soft keys”.
Note:
Do not press directly on the radio display face.

139 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Operation
Switching on and off
Press the control knob .
The radio is switched off when the ignition key is turned
to position 0 or removed from the ignition. The radio is
switched on again when the ignition key is turned to
position 1 or 2.
Note:
The radio can also be switched on even if the ignition
key is not inserted, but will switch itself off
automatically after one hour to conserve vehicle battery
power.
Adjusting the volume
Turn the control knob - turning the knob clockwise will
increase the volume, counterclockwise will decrease the
volume.Audio functions
The AUD key is used to select the BASS, TREBLE,
FADER and BALANCE functions. Settings for bass and
treble are stored separately for the cassette and CD
modes. Tone level settings are identified by the vertical
bars. The center (flat) setting is shown by one longer bar
in the center of the display.
Bass
Press the AUD key repeatedly
until “BASS” appears in the
display.
Treble
Press the AUD key repeatedly
until “TREBLE” appears in the
display.
Press the “+” key to increase
or the “-” key to decrease the level.

140 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Fader
1
Press the AUD key repeatedly
until “FADER” appears on the
display. Press the “R” key to
move the sound to the rear
speakers or the “F” key to
move the sound to the front speakers.
Balance
Press the AUD key repeatedly
until “BALANCE” appears in
the display.
Press the “L” key to move the
sound to the left speaker or the “R” key to move the
sound to the right speaker.
1 not available on all models
Centering all audio functions
Push and hold down the
“AUD” key. All audio
functions (bass, treble,
balance and fader) are set to
center or flat positions, and
the volume is adjusted to a pre-set level.

141 Audio system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Radio mode
Selecting radio mode
Press button.
Selecting the band
Press the key located below
the desired band. The band
selected is shown in the top
line of the display.Manual tuning
Press either the or
button. Step-by-step tuning in
ascending or descending
order of frequency will take
place.
The first three tuning steps will take place without
muting. The radio will then be muted and high-speed
tuning will take place until the button is released.
The following tuning intervals will be shown on the
display:
Seek tuning
Press either the or button. The radio will tune
to the next receivable station. Frequency ranges: FM 87.9 - 107.9 MHz
AM 530 - 1710 kHz
WB approx. 162 MHz
FM 200 kHz
AM 10 kHz
WB Channels 1-7