2008 MERCEDES-BENZ C300 ESP

187 Controls in detail
Audio system
Example of how to use the audio
system
Example: direct frequency input,
FM 104.5 MHz.
In the descriptions below, the mode always
serve as the starting point for locating the
individual menu items.
Example:
b

Radio
Enter Frequency
The individual steps for the above-men-
tioned example are described below.
Press buttonb on audio control
unit repeatedly until desired waveband
FM has been selected.
Switching to the menu bar:
Slidemr.
Selecting “Radio” in the menu bar:
Slideomor rotate ymz.
Confirming selection: Press n.
The
Radio menu is selected and a list of
submenus appears.
Selecting “Enter Frequency” in the
“Radio” menu: Slidemr.
Confirming selection: Press n.
The
Enter Frequency submenu ap-
pears.
Enter 1045 with the keypad on the au-
dio control unit.
The audio system tunes in to the
frequency entered.
iIt is not possible to enter a frequency in the
respective waveband which is outside the fre-
quency range. Frequencies within the current
frequency range, but outside the current fre-
quency step width are rounded to the next lower
allowed frequency.

198 Controls in detail
Audio system
Tuning to a station by entering the fre-
quency manually
b
Radio
Enter Frequency
The menu for manual frequency entry
appears.
or
Press buttonó, on the keypad in
audio control unit briefly.
Enter frequency with keypad:
Enter desired frequency with
buttons1to R, with the keypad
in audio control unit briefly.
The audio system tunes in to the fre-
quency entered.
Exiting menu without making an en-
try: Press button í in the center
console (
page 184).Storing stations
You can store ten AM and ten FM stations
in the memory.
Storing stations manually with keypad
Tune in desired station.
Basic menu is shown in the audio
display.
Press and hold desired station
button1 to R until a brief signal
tone sounds.
The station is stored.
iThis function is not available for Weather
Band.
iIt is not possible to enter a frequency in the
respective waveband which is outside the fre-
quency range.
iIf you select a memory preset which is al-
ready in use, it will be overwritten by the new
station.

199 Controls in detail
Audio system
Storing stations manually with station
memory menu
Tune in desired station.
Basic menu is shown in the audio
display.
Press n when the main area is active.
or
Select Presets.
The station memory display appears in the
audio display.
The dot R in front of a memory position
indicates that the currently tuned station is
stored there.
Selecting a memory position:
Slideqmr or rotate ymz.
Storing a station to a selected mem-
ory position: Press and hold n until a
brief signal tone sounds.
or
Press and hold desired station
button1 to R on keypad, until a
brief signal tone sounds.
The station is stored.
Autostore – automatic station memory
Press b button on audio control
unit repeatedly until desired waveband
has been selected.Basic menu is shown in the audio
display.
Press n when the main area is active.
or
Select Presets.
The station memory display appears in the
audio display.
Slideqmr or rotate ymz to select Au-
tostore
.
Press n.
The audio system searches for receivable
stations. A corresponding message is dis-
played. The available stations are automat-
ically stored in memory. The first received
station will be automatically played.
Canceling storage procedure:
Pressn while the “Searching” mes-
sage is being displayed.
iThis function is not available for Weather
Band. The autostore function automatically as-
signs receivable stations to the memory, sorted
according to reception quality at the moment of
performing the autostore. The stations which
were stored in the station memory manually are
completely lost in this process. If less than ten
stations are found, the remaining entries are left
empty.

205 Controls in detail
Audio system
Channel number is valid, but channel is
not included in subscription: The mes-
sage
Please call SIRIUS to subscribe
pops up (
page 202).
Press n to close the message in the
audio display.
Tuning in channels using the satellite ra-
dio channel list
b
Sat
Channel List.
The channel list appears. The dotR in
front of a list entry indicates the cur-
rently selected channel.
Select channel by rotating ymz or
slidingqmr.
Press n to confirm.Tuning in channels using satellite radio
channel presets
b
Presets.
or
Press n when the main area is select-
ed.
The preset menu appears. The dotR
in front of a preset position indicates
that this is the channel currently select-
ed and being listened to.
Select station in memory by rotating
ymz or sliding qmr.
Press n to confirm.
or
Press desired station button1 to
R, with the keypad in audio control
unit briefly.
The audio system tunes in the correspond-
ing channel as long as it is included in your
subscription and is still available.
If the channel is not included in your sub-
scription, you will see the message de-
scribed in the section “Satellite radio
service is not activated” (
page 202).
If the channel is no longer available, you
will see the message
Invalid Channel.
Closing message: Press n.iThe contents of the channel list depends on
which channels are included in your subscription
and which program category you have selected
(
page 203). If only the preview channel is acti-
vated, the channel list contains only the preview
channel.

210 Controls in detail
Audio system
Do not use CDs with an 8 cm diameter. At-
tempting to play CDs with an 8 cm diame-
ter or playing such CDs with an adapter
may cause damage to the CD drive. Such
damage is not covered by the
Mercedes-Benz Limited Warranty.
Only use round, 12 cm diameter discs.
Should excessively high or low tempera-
tures occur while in CD changer mode*,
CD ERROR will appear in the display, and the
CD will be muted until the temperature has
reached an acceptable level for the system
to continue operation.
The single CD player and the CD changer*
can play audio CDs as well as CDs with
MP3 files.Tips on handling CDs

Only touch the CDs at the edges.

Handle CDs carefully to prevent
interference during playback.

Avoid scratches, fingerprints and dust
on the CDs.

The CDs must only be labeled using
pens specially designed for this pur-
pose.

Clean CDs from time to time with a
commercially available cleaning cloth.
Never wipe the CD in a circular motion;
instead, wipe it in a straight line start-
ing in the center and moving outward.
Do not use solvents, anti-static sprays,
etc. for cleaning.

Replace the CD in its case after use.

Protect CDs from heat and direct
sunlight.Notes about MP3 mode
The single CD player and the CD changer*
can play audio CDs as well as CDs with
MP3 files.
Permissible media for MP3 files

CD-DA

CD-R

CD-RW
Permissible file systems

ISO9660/Joliet for CDs
!Your CD drive or CD changer* has been de-
signed to play CDs which correspond to the
IEC 60908 standard. You can therefore only use
CDs with a maximum thickness of 1.3 mm.
If you insert thicker discs, e.g. ones that have
data on both sides (one side with DVD data, the
ot her s ide w it h au dio data) , th ey can no t be eje ct-
ed and will damage the drive.
iDue to the branched data structure, play-
back of the first track may be delayed slightly.

211 Controls in detail
Audio system
Multisession CDs
For multisession CDs, the first session
type of the CD determines how the audio
system will process the CD.
For example, if the first session type is ac-
cording to the audio CD standard and the
second session type is according to the
data CD standard containing MP3 tracks,
the audio system will treat the CD as a con-
ventional audio CD. This means that it is
only possible to access the audio CD
tracks. Access to the MP3 tracks is not
possible.
Similarly, if the first session type is accord-
ing to the data CD standard containing
MP3 tracks and the second session type is
according to the audio CD standard, the
audio system will treat the CD as a data
CD. This means that it is only possible to
access the MP3 tracks. Access to the au-
dio CD tracks is not possible.File structure on a disc
When you create an MP3 disc, the MP3
tracks can be organized in folders. A folder
can also contain other folders. A disc can
contain a maximum of 255 folders. Each
folder can contain a maximum of
255 tracks and 255 folders. A disc can
contain a maximum of 4 000 tracks. Usual-
ly this number will not be reached because
each minute of an MP3 track requires ap-
proximately 1 MB of storage space.Track and folder names
When you create an MP3 disc, you can as-
sign names to the MP3 tracks and folders.
The audio system uses these names for
the corresponding display in MP3 mode.
Empty folders or folders which contain
data other than MP3 tracks are not dis-
played by the audio system.
If MP3 files are saved in the root directory
itself (uppermost directory on storage me-
dium), the root directory will also be treat-
ed as a folder. The audio system will then
show the name of the root directory as the
folder name.

212 Controls in detail
Audio system
You must observe the following when as-
signing track names:

Track names must have at least one
character.

Track names must have the extension
“mp3”.

There must be a period between the
track name and the extension.
Example of a correct track name:
Track1.mp3
The audio system is unable to recognize an
MP3 track if:

there is no period between the track
title and the extension

there is no extensionPermissible MP3 formats
The audio system supports the MPEG1 Au-
dio Layer 3 format.
Compatible file systems and compres-
sion methods
The following compression methods are
compatible:

MP3

WMA
Permissible bit and sampling rates

Fixed and variable bit rates up to
320 kbit/s

Sampling rates of 24 kHz – 48 kHzNotes on copyright
The music tracks that you create for MP3
mode and can play back in MP3 mode are
generally subject to copyright protection in
accordance with the applicable interna-
tional and national regulations.
In many countries, reproductions are not
permitted without the prior consent of the
copyright holder, not even for private use.
Make sure you know the applicable copy-
right regulations and that you comply with
these.
If you own these rights yourself, e.g. for
your own compositions and recordings, or
the copyright holder has granted you per-
mission, these restrictions do not apply.
iThe audio system does not support ID3 tags.
iThis format is generally known as “MP3”.
iIf music files, created with different com-
pression methods, in addition to MP3 files, are
stored together on a disc, the loading process
may take longer before the first track is played.
iOnly use MP3 tracks with a bit rate of at
least 128 kbit/s or higher and a sampling rate of
at least 44.1 kHz or higher. Smaller rates can
cause a noticeable deterioration in sound quali-
ty. This is especially the case if you have activat-
ed the surround sound* function.

220 Controls in detail
Audio system
Select a track by slidingqmror rotat-
ing ymz the audio controller.
Press n to confirm.
The track is played and the correspond-
ing folder is now the active folder.
Playback options
The following options are available:

Normal Track Sequence
Tracks playback in the order on the
disc (e.g. track 1, 2, 3, etc.).

Random Tracks
Tracks playback in a random order
(e.g. track 3, 8, 5, etc.).

Random Folder (in MP3 mode only)
Tracks in the active folder and any sub-
folders playback in random order.
Selecting an option: é
CD/MP3.
The option list appears. A dot R indi-
cates which option is switched on.
Select an option and press n.
The option is switched on. For all op-
tions except
Normal Track Sequence,
you will see a corresponding indicator
in the main area.
Audio Aux mode
An external audio source (Aux) can be con-
nected to the audio system. The
cinch-connector for connecting the exter-
nal audio source (Aux) is located in the
glove box. Please contact an authorized
Mercedes-Benz Center for more informa-
tion
1External audio source (Aux)
cinch-connector
iThe “Normal Track Sequence” option is au-
tomatically activated when you select a different
medium. If an option is activated, it remains acti-
vated after the audio system is switched on/off.