2004 MERCEDES-BENZ CLK320 CABRIOLET key

186 Controls in detailAudio systemButton and soft key operation
In these instructions, the alpha-numeric
keypad (right side of radio panel) and the
function buttons (left side of radio panel)
are referred to as “buttons”. The four keys
below the display panel are referred to as
“soft keys”.
Operation
Switching on/off
Switching on:
Turn SmartKey in starter switch to
position1 or2.
or

Turn control knoba.
Switching off:

Remove SmartKey from starter switch.
or

Turn control knoba.Adjusting the volume

Turn control knoba.
The volume will increase or decrease
depending on the direction turned.
Adjusting audio functions
Press the AUD key to call up the bass, tre-
ble, balance and fader functions in the var-
ious operating modes. Settings for bass
and treble are stored separately for the AM
and FM frequency bands, satellite radio
(SAT) mode, cassette mode and CD mode.
!Do not press directly on the display
face. Otherwise, the display will be
damaged.
iIf the radio is switched on without the
SmartKey in the starter switch, it will
automatically switch off again after ap-
prox. 30 minutes.
iThe volume setting can be selected
separately for the telephone*, audio
system and voice control system*.

187 Controls in detail
Audio system
Bass
Regardless of operating mode, press
the
AUD
key repeatedly until
BASS

appears on the display.

Press
+ or
- key to increase or de-
crease level.
or

Press both
+ and
- keys simultaneously
to reset the Bass to its center (flat) lev-
el.Treble

Regardless of operating mode, press
the
AUD
key repeatedly until
TREBLE

appears on the display.

Press
+ or
- key to increase or
decrease level.
or

Press both
+ and
- keys simultaneously
to reset the Treble to its center (flat)
level.Fader

Regardless of operating mode, press
the
AUD
key repeatedly until
FADER

appears on the display.

Press
F or
R key to shift sound accord-
ingly to the front or rear speakers.
or

Press both
F and
R keys simultaneously
to reset the Fader to its center level.
iYour vehicle may or may not have the
fader function, depending on the
vehicle equipment and model.

188 Controls in detailAudio systemBalance
Regardless of operating mode, press
the
AUD
key repeatedly until
BALANCE

appears on the display.

Press
L or
R key to shift sound accord-
ingly to the left or right speakers.
or

Press both
L and
R keys simultaneously
to reset the Balance to its center level.Returning audio functions to factory
settings

Regardless of operating mode, press
and hold
AUD
key longer than two
seconds.
RESET
will appear on the
display.
All settings for bass, treble and balance
are returned to the center level and the
volume is set to a predefined level.Audio system sound selection (EXT)*

Regardless of operating mode, press
the
AUD
key.
The sound settings menu appears on
the display.

Press the
EXT
key.

Press one of the function keys.

189 Controls in detail
Audio system
You can select from among the
following settings:

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


SP: The tone level is set for Speech,
optimizing the sound for the spoken
word.


AMB
: The tone level is set for
Ambience, producing a
three-dimensional sound.


OFF
: The audio system sound
selection is turned off.
Telephone* muting
If a telephone has been installed in the
vehicle, the radio will switch to telephone
mode when a call is incoming. The current
audio source is muted.
Radio operation
Selecting radio mode
Pressb button.

You can now receive radio stations
over the analog FM, AM or WB station
frequencies or you can receive chan-
nels digitally via satellite radio (SAT)*.
Analog station frequencies
Selecting the band
You can select from among FM, AM or WB
frequency bands.
Weather band (
see page 192).

Press FM, AM or WB key repeatedly un-
til desired band has been selected.
The FM, AM and WB frequency bands
are called up one after the other.
The frequency band currently selected
appears in the upper left-hand corner
of the display.
Selecting a station
The following options are available for
selecting a station:


Direct frequency band input
(page 190)


Manual tuning (
page 190)


Automatic seek tuning (
page 190)


Scan tuning (
page 191)


Preset buttons (
page 191)


Automatic station memory (Autostore)
(page 191)
iFM frequency band:
FM 87.7......107.9 MHz
AM frequency band:
MW (medium wave) 530......1710 KHz

191 Controls in detail
Audio system
Scan tuning

Starting scan tuning
Select desired frequency band.

Press2 button.SC will appear on the display. The
radio briefly tunes in all receivable
stations on the band selected. The
first scan cycle will tune in only the
stations with a strong signal. The
second scan cycle will tune in every
receivable station.


Ending scan tuning
Press2 button ord, c,
f ore button.SC disappears from the display.Manual station memory (Presets)
You can store ten AM and ten FM stations.


Storing stations
Tune in the desired station.

Press and hold desired station
button4 toM until a brief
signal tone is heard.
The frequency is stored on the
selected station button.
The frequency band and station
button number are shown in the up-
per left-hand corner of the display.


Retrieving a station from memory
Press desired station button4
toM.Automatic station memory (Autostore)
The Autostore memory function provides
an additional memory level. The station
memory for manually stored stations is not
overwritten.


Calling up Autostore memory level
Briefly press the
AS key.
AS is highlighted in the display.
The radio finds the ten stations with
the strongest signals. These
stations are stored on the station
buttons4 toM in order of
signal strength.


Retrieving a station from memory
Press desired station button4
toM.


Leaving the Autostore memory level
Press the
AS key.
The highlighted
AS in the display
disappears.

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

Select the desired weather band
station with buttons4 to7.
If a station cannot be tuned in, a scan
is automatically started.

Pressf ore button. The next
receivable weather band station is
tuned in.
Satellite radio (SAT)* (USA only)Sirius Satellite Radio provides 100 chan-
nels of digital-quality radio, among others
music, sports, news, and entertainment,
free of commercials. Sirius Satellite Radio
uses a fleet of high-power satellites to
broadcast 24 hours per day
coast-to-coast.
This diverse, satellite-delivered program-
ming is available for a monthly subscrip-
tion fee.
For more information, call the Sirius ser-
vice or contact www.siriusradio.com
Program categories
The channels are categorized. The catego-
ries allow you to tune to stations broad-
casting a certain type of program
(PTY mode) (
page 195).
iAdditional optional satellite radio
equipment and a subscription to satel-
lite radio service provider is required
for the satellite radio operation de-
scribed here. Feature description is
based on preliminary information avail-
able at time of printing.
At time of printing, no date for availabil-
ity of optional equipment required for
satellite radio operation had been set.
Contact your authorized
Mercedes-Benz Center for details and
availability for your vehicle.
Satellite radio service may be unavail-
able or interrupted from time to time
for a variety of reasons, such as envi-
ronmental or topographic conditions
and other things we can't control. Ser-
vice might also not be available in cer-
tain places (e.g., in tunnels, parking
garages, or within or next to buildings)
or near other technologies.

193 Controls in detail
Audio system
Starting satellite radio (SAT)
Start radio mode.
If the radio was in SAT radio mode be-
fore being turned off or changed to an-
other operating mode, the last SAT
channel selected is called up.
or

Press the
SAT
key.
When you call up the SAT radio mode
for the first time,
ACQUIRING
will appear
on the display during the initialization
process.
or
The last channel selected is called up.Entering the Electronic Serial Number
(ESN)
The first time SAT radio is called up, you
must give your SAT radio provider the Elec-
tronic Serial Number (ESN) of your SAT re-
ceiver over the telephone.

Press the
SAT
key.
The radio switches to SAT mode.
CALL SIRI
appears on the display.

Press the
ESN
key.
The provider’s phone number will ap-
pear first. After pressing the
ESN
key
again, the ESN number will appear.
Make note of the phone number and
ESN number.

Press the
ESN
key repeatedly until all
required information has appeared on
the display.

Call the telephone number and give
provider your ESN number.iCredit card information is also required
for your application.
The activation process takes approxi-
mately five to ten minutes after calling
the SIRIUS Service Center.

194 Controls in detailAudio systemChannel selection
The following options are available for se-
lecting a channel:

Direct channel input (
page 194)


Manual tuning (
page 194)


Preset channels (
page 194)
Direct channel input

Press“key.

Enter desired channel number using
buttons 4 to M.Manual tuning

Press and hold f, d, c or
e button until the desired channel
has been reached.
Preset channels
You can store up to ten channels.


Retrieving a channel from memory
Press the desired channel button
4 to M.


Storing channels
Tune in the desired channel.

Press and hold desired channel but-
ton 4 to M until a brief signal
tone sounds.
The channel is stored on the selected
channel button.
iOnly inputs for available channels are
possible.
If a button is not pressed within four
seconds, the radio will return to the last
station tuned.