2008 MERCEDES-BENZ C300 4MATIC phone

188 Controls in detail
Audio system
Operation
In the following descriptions, an operation
step is described as in example below.
b
Radio
Enter Frequency
is the short for
Press buttonb on audio control
unit repeatedly until desired waveband
has been selected.
Slidemr.
Slideomor rotate ymz the audio con-
troller to select
Radio.
Press the audio controller n.
The
Radio menu is selected and a list of
submenus appears.
Slideqmor rotate ymz the audio con-
troller to select
Enter Frequency.
Press the audio controller n.
The
Enter Frequency submenu is
selected and appears in the audio
display.Switching audio system on or off
Rotary control/push buttono
1Push buttono
2Rotary control
Switching on: Press push
buttono.
or
Open the audio display cover.
or
If the audio system was on as you
switched off the ignition, turn the
SmartKey in the starter switch to
position2.The audio system will come back on
with the last selected function.
Switching off: Press push
buttono.
or
Turn the SmartKey in the starter switch
to position0.
iIf the audio system is switched on without
the SmartKey in the starter switch, it will
automatically switch off again after
approximately 30 minutes.
If your vehicle is equipped with a telephone*, the
audio display may prompt you to enter your PIN
(GSM network) or passcode (CDMA network).
iShould excessively high temperatures occur
while the audio system is being operated,
HIGH TEMP will appear in the audio display, after
which the audio system will be switched off for a
cooling-down period.
iWhen you switch off the audio system, you
also switch off the currently playing audio source
and the telephone* operating via audio control
unit is not possible.

189 Controls in detail
Audio system
Adjusting volume
Rotary control/push buttono
1Push buttono
2Rotary control
Adjusting: Turn rotary control2.
The volume will increase or decrease
depending on the direction turned.Adjusting volume for telephone calls
In hands-free mode, you can adjust the vol-
ume of a telephone call while the call is
currently active.
During a telephone call:
Turn rotary control2.
The volume will increase or decrease
depending on the direction turned.
Sound
To switch on/off: Press button F
on the audio control unit (
page 177).
The sound of the current audio source
is switched on or off.Selecting sound settings
You can select different sound settings for
each individual audio source. The particu-
lar
Sound menu can be opened from the
basic menu for the desired operating
mode, or by pressing the TONE button on
the audio control unit.
Example:
b

Sound
Bass
Adjusting bass or treble
Press TONE button repeatedly until
Bass or Treble appears in the audio
display.
or
Select Sound
Bass or Treble.
The setting last selected is indicated by
an red pointer.
iThe volume of the audio system or a tele-
phone call can also be adjusted by pressing the
æ or ç button on the multifunction steer-
ing wheel (
page 158).
iWhen the sound is switched off, the
symbolF appears in the status line.
If you change the audio source, or alter the vol-
ume, the sound is automatically switched on
again.


194 Controls in detail
Audio system
Radio operation
The radio mode is interrupted by an
incoming call on the telephone*
(
page 222).
iThe language select in the Audio system is
also used for the displays and messages in the
multifunction display.
Available languages:

German

English

Spanish

French

Italian
Warning!G
Please devote your attention first and fore-
most to the traffic situation you are in.
Before your journey, please familiarize your-
self with the radio functions.
Only use the audio system when road and
traffic conditions permit you to do so. Other-
wise you could be involved in an accident in
which you or others could be injured.
!Do not attach metallic film to the inside or
outside of windows which are fitted with an aeri-
al. Obstructing the metallic aerial structure on
the window will interfere with radio reception.
Cutting the film on the window can permanently
damage the aerial wires.

196 Controls in detail
Audio system
Switching to radio mode
Press buttonb on audio control
unit.
The radio basic menu appears in the
audio display once you have switched
to radio mode. You will hear the
station/channel last tuned in the previ-
ously selected waveband, provided
that the station/channel can be re-
ceived.
Illustration: radio mode in FM waveband
1Status line
2Station name
3Store position of station
4Main area with wavebandInformation displayed in the status line
(example)
The following information is displayed in
the status line:

Time (04:38)

Station name (WNYC)
Mobile phone readiness is indicated by
additional information being shown:

Mobile phone network signal
strengthI

Receiver symbol 4 ö.Calling up wavebands
You can choose from among the FM, AM
and WB wavebands and then request the
Sat mode*. Pressing again will switch back
to FM radio mode.
Press buttonb on audio control
unit repeatedly until desired waveband
has been selected.
The FM, AM, and WB wavebands and
the satellite radio* mode are called up
one after another.
The waveband currently selected
appears in the status line of the audio
display. The last selected station in the
selected waveband is heard.
iStation names 3, available for the FM
waveband, can only be seen when the station
transmits a name.
In the WB waveband, the audio system displays
the channel number, e. g. Channel 6, instead of
the station names and/or frequency.
WavebandFrequency
WB (Weather Band)Weather channels
FM87.7......107.9 MHz
AM530.......1 710 KHz

202 Controls in detail
Audio system
Satellite radio service is not activated
The telephone number of the SIRIUS Ser-
vice Center and the twelve-digit electronic
serial number (SIRIUS-ID) of the particular
receiver are required when calling the
SIRIUS Service Center for an activation re-
quest.
b
Sat
Service.
Closing screen: Press n.
To activate satellite radio service:
Contact satellite radio service provider
at the telephone number displayed in
the service display.
After the connection is made:
Follow the instructions given by the op-
erator.The activation process may take up to
10 minutes. If it is successful, you will
see the display with the message
Acquiring Signal... followed by the
satellite radio basic menu.Satellite radio service is activated
The basic satellite radio menu appears.
You will hear the channel last tuned in, pro-
vided that it can be received.
Switching on
For important subscription information see
“Subscribing to satellite radio”
(
page 201).
Press buttonb on audio control
unit repeatedly until satellite radio Sat
is selected.
The message
Acquiring Signal... will
appear when the signal is not available.
After the audio system acquires the
signal, the satellite radio basic menu
will appear. The station last tuned to
will begin to play.
iActivating the satellite radio service might
not be available in certain places (e.g., in tun-
nels, parking garages, or within or next to build-
ings). If a subscription is not included with
system purchase, credit card information is re-
quired to activate your account.
The activation process takes approximately 5 to
10 minutes after calling the SIRIUS Service Cen-
ter.
If a satellite receiver is not installed or not prop-
erly installed:
The message
Device unavailable will ap-
pear.
iIt is also possible to activate the satellite ra-
dio service online. To do so please visit SIRIUS
Satellite Radio's website at www.sirius.com
(USA) or www.siriuscanada.com (Canada).

206 Controls in detail
Audio system
Storing channels
Press n when the main area is select-
ed.
or
b
Presets.
In both cases, the preset menu will appear
in the audio display. The dot R in front of
a preset position indicates that the chan-
nel currently selected is stored there.
Selecting a preset position:
Slideqmr or rotate ymz.
Storing a preset position: Press and
hold n until you hear a signal.
The channel is stored.
or
Press and hold desired channel
button1 to R on keypad, until a
brief signal tone sounds.
The channel is stored.
Show program info
b
Info.
You will see a screen that may contain the
following information (if available):

Selected program category

Selected channel

Artist of the track currently being
played

Name of current trackWith the telephone keypad button ô
you can call up an popup screen, if provid-
ed by the program provider, that shows the
name of the actor and title of the current
track played on the selected channel.
Closing screen: Slide omp or
pressn.
iThere are ten preset positions available.
iIf the program provider does not offer any in-
formation, the “Info” menu item cannot be se-
lected.
iThe program provider determines what in-
formation is displayed on the screen. The audio
system shows no more than two lines per item of
information. If an item of information is too long,
the audio system shortens it.

207 Controls in detail
Audio system
Calling SIRIUS Service Center
b
Sat
Service.
The telephone number of the SIRIUS
Service Center and the twelve-digit
electronic serial number (SIRIUS-ID) of
the particular receiver are displayed.
Closing screen: Slide omp or
pressn.Channel update
The service provider may conduct a chan-
nel update.
During the update, the message
Updating
channels...
will appear on the audio dis-
play.
The channel last tuned will be muted until
the update is completed. You cannot oper-
ated the satellite radio during the update.
After completion of the update, the satel-
lite radio basic menu will appear. The sta-
tion last tuned to will begin to play. If not
available, the next subscribed channel
starts beginning with channel 1. Sound settings
For sound adjusting see:

Volume (page 189)

Balance control and fader
(
page 190)

Bass and treble control (page 189)

Surround sound* (page 190)
iIt may be necessary to call the SIRIUS Ser-
vice Center if, for example:

You want to cancel the subscription or
re-subscribe at a later date.

You forget to pay the bill.

You sell the car to another person.

218 Controls in detail
Audio system
Playing CDs
Additional button functions
In CD mode, you can use two additional
buttons on the telephone keypad:
ôdisplays information about the
track, if this has been saved
with the track on the CD.
óenables you to enter the track
number directly.Example display in audio CD mode
1Track number
2Track name (only if saved on the disc)
3Elapsed track time
4Disc name (only if saved on the disc)
5Disc number (CD changer*)
6Disc typeExample display in MP3 mode
1Track number
2File name
3Elapsed track time
4Mode
5Folder name (only if saved on the disc)
6Disc number (CD changer*)
7Disc type
Pause function
Pausing playback:
Press F briefly.
Continuing playback: PressF
again briefly.
iThe following section is valid for the single
CD player and the CD changer*. The illustrations
show the audio display of the CD changer*.