2003 MERCEDES-BENZ C320 Owner's Manual

169 Controls in detail
Audio system
Bass
In radio, cassette and CD mode, press
the
AUD
key repeatedly until
BASS
ap-
pears on the display.

Press the
+ or
- key to increase or de-
crease the tone level accordingly.
or

Press both the
+ and
- keys simulta-
neously to reset the bass tones to the
center (flat) level.Treble

In radio, cassette and CD mode, press
the
AUD
key repeatedly until
TREBLE
ap-
pears on the display.

Press the
+ or
- key to increase or de-
crease the tone level accordingly.
or

Press both the
+ and
- keys simulta-
neously to reset the treble tones to
their center (flat) level.Fader

In radio, cassette and CD mode, press
the
AUD
key repeatedly until
FADER
ap-
pears on the display.

Press the
F or
R key to shift the sound
accordingly.
or

Press both the
F and
R keys simulta-
neously to reset the fader to its center
level.
iYour vehicle may or may not have the
fader function, depending on the vehi-
cle equipment and model.

170 Controls in detailAudio systemBalance
In radio, cassette and CD mode, press
the
AUD
key repeatedly until
BALANCE

appears on the display.

Press the
L or
R key to shift the sound
accordingly.
or

Press both the
L and
R keys simulta-
neously to reset the balance to its cen-
ter level.Returning audio functions to factory set-
tings

In radio, cassette and CD mode, press
and hold the
AUD
key longer than two
seconds.
RESET
will appear on the dis-
play.
All settings for bass, treble and balance
are returned to center and the volume
is set to a predefined level.Audio system sound selection (EXT)*

In radio, cassette and CD mode, press
the
AUD
key.
The sound settings menu appears on
the display.

Press the
EXT
key.

Press one of the function keys.
You can select from among the follow-
ing settings:

DRV
: The tone level is set to the
“Driver” position, sound is directed
toward the passengers.

171 Controls in detail
Audio system


SP: The tone level is set for
“Speech”, optimizing the sound for
spoken language.


AMB
: The tone level is set for “Ambi-
ence”, producing a three-dimen-
sional sound.


OFF
: The audio system sound selec-
tion is turned off.
Telephone* muting
If a telephone has been installed in the ve-
hicle, the radio will switch to telephone
mode when a call is received. The current
audio source is muted.
Radio mode
Selecting radio mode
Press the
b
button.
Selecting the band
You can select from among FM, AM or WB
frequency bands.
FM frequency band:
FM (ultra-short wave) 87.9......107.9 MHz
AM frequency bands:
MW (medium wave) 530......1710 KHz
WB (long wave) approx. 162 KHzSelecting FM band

Press the
FM function button.
FM appears in the upper right-hand cor-
ner of the display.
Selecting AM band

Press the
AM function button.
AM appears in the upper right-hand cor-
ner of the display.
Selecting a station
The following options are available for se-
lecting a station:


Direct frequency band input


Manual tuning


Automatic seek tuning


Scan tuning


Station buttons


Automatic station memory (Autostore)

172 Controls in detailAudio systemDirect frequency input (AM and FM only)
Select the desired frequency band.
Press the
“
button.

Enter the desired frequency with the
buttons1 to0.Manual tuning

Select the desired band.

Press and hold either the
d
or
c

button until the desired frequency is
reached.
Step-by-step station tuning takes place
in ascending or descending order of
frequency. The first three tuning steps
will take place without muting. After-
ward, the radio will be muted and
high-speed tuning will take place until
the button is released.Automatic seek tuning

Select the desired frequency band.

Press either the
f
or
e
button.
The radio will tune to the next receiv-
able station at a higher or lower fre-
quency.
iYou can only enter frequencies within
the respective waveband.
If a button is not pressed within four
seconds, the radio will return to the last
tuned station.

173 Controls in detail
Audio system
Scan tuning

Starting scan tuning
Select the desired frequency band.

Press the
2
button.
SC will appear on the display. The
radio briefly tunes into all receiv-
able stations on the band selected.
The first scan will tune only the sta-
tions with a strong signal. The sec-
ond scan will tune every receivable
station.


Ending scan tuning
Press the
2
button or the
d
,
c
, f
or
e
button.
SC disappears from the display.Station memory
You can store ten AM and ten FM stations.


Storing stations
Tune in the desired station.

Press and hold the desired station
button1 to0 until a brief signal
tone is heard.
The frequency is stored on the se-
lected station button.


Retrieving a station from memory
Press the desired station button1
to0.
Storing stations automatically
(Autostore)
The Autostore memory function provides
an additional memory level. The station
m e m o r y f o r m a n u a l l y s t o r e d s t a t i o n s i s n o t
erased.


Calling up the Autostore memory level
Briefly press the
AS key.
AS appears on the display in
inversed-color format.
The radio finds the ten stations with
the strongest signals. These sta-
tions are stored on the station
buttons1 to0 in the order of signal
strength.


Retrieving a station from memory
Press the desired station button1
to0.


Leaving the Autostore memory level
Press the
AS key.
AS appears on the display in in-
versed-color format.

174 Controls in detailAudio systemWeather band
Press the
WB key.
The last weather band station is tuned
in.

Select the desired weather band sta-
tion with buttons1 to7.
If a station cannot be tuned in, a scan
is automatically started.

Press the
f
or
e
button. The
next receivable weather band station is
tuned in.
Cassette mode
Playing cassettes
Press the
3
button.
The display folds down and the cas-
sette slot becomes visible.

Press the cassette into the slot until it
engages and tap it gently.
The cassette will be pulled in automati-
cally. The system switches to cassette
mode (
TAPE
). Track 1 will be played and
SIDE 1
appears in the display. Track 1
is the side of the cassette which is fac-
ing upward. The cassette deck will au-
tomatically detect the type of tape.

Fold the display back up and press gen-
tly on the display frame to lock in place.
or

If a cassette is already in the mecha-
nism, press the
j
button.
Track selection

Press the
TRK
key.
Upon selection of the track, the display
shows
SIDE 1
or
SIDE 2
correspond-
ingly.

You can switch track sides at any time.
The track side will be changed auto-
matically at the end of the tape.
iDo not press directly on the display
face.
iA warning signal will sound after
20 seconds if the display is left in the
down position. If the display is not
closed, a warning signal will sound and
the radio will be muted.

175 Controls in detail
Audio system
Cassette eject
Press the eject button
3
.
The display will fold down and the cas-
sette will be ejected. The system will
switch back to radio mode automatical-
ly.

Fold the display back up.Track search
Track search forward

Press the
f
button.
SEEK FWD
will appear in the display. The
track search will run the tape forward
to the start of the next track and switch
to play.Track search backward

Press the
e
button.
SEEK RWD
will appear on the display.
The track search will run the tape back-
ward to the start of the track currently
playing and switch to play.
Stopping track search

Press the
d
, c
, f
or
e

button.
The cassette will switch over to Play.
iThe cassette will not be ejected when
the system is switched off or switched
to another operating mode.
iThe cassette will not be ejected when
the system is switched off or switched
to another operating mode.

176 Controls in detailAudio systemScanning
Press the
2
button.
SC will appear on the display.
Each track on the cassette will be
played briefly in ascending order.
Stopping scan:

Press the
2
, d
, c
, f

or
e
button.
The system will switch to Play.Fast forward/reverse
Starting cassette fast forward mode:

Press the
d
button.
FORWARD
will appear on the display.
Starting cassette fast reverse mode:

Press the
c
button.
REWIND
will appear on the display.
The cassette will automatically switch over
to the play mode at the end or beginning of
the tape.Stopping the cassette fast forward/re-
verse mode:

Press the
d
, c
, f
or
e

button.
The cassette will switch over to the
play mode.