2008 MERCEDES-BENZ C300 audio

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.

213 Controls in detail
Audio system
Operating the CD player
The single CD drive and the CD changer*
have the same controls.
1CD slot
2Eject/load button
3Forward
4RewindSingle CD player
Switching to CD mode: Press
buttoné on the audio control unit.
The CD display appears when you
switch to CD mode. CDs start to play
automatically when they are inserted.
The following message will appear if no
CD is inserted.Warning!G
Only insert a CD when the vehicle is station-
ary. There is a risk of accident by being dis-
tracted from road and traffic conditions if
you load a CD while the vehicle is in motion.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
!If a CD is already loaded, it must be ejected
before inserting a new CD. Inserting a second
CD in the slot with another CD still loaded will
cause damage to the CD drive not covered by the
Mercedes-Benz Limited Warranty.

214 Controls in detail
Audio system
Ejecting a CD: Press eject/load
button2.
The system ejects the CD.
Please
Remove Disc
appears in the display.
Remove CD from CD slot1.
NO Disc appears in the display.
Loading a CD: Insert CD into CD
slot1.
The system automatically pulls the CD
into the CD slot1 and starts to play
the audio CD if it has been inserted cor-
rectly and is permissible.
CD changer*
The CD changer can hold up to a total of 6
audio CDs
Switching to CD mode: Press
buttoné on the audio control unit.
The CD changer display appears when
you switch to CD changer mode. If
there is a CD in one of the magazine
trays, it will start to play automatically.
The following message will appear if no
CDs are inserted.
iIf you do not take the CD out of the CD
slot1 within approximately. 15 seconds, the
system automatically pulls the CD back in and
plays it.
If a CD is pulled back in, press eject/load
button2 again; the CD will then be ejected.
iIf the audio CD is printed on one side, this
side must face upwards when loaded. If neither
side is printed, the side to be played must face
downwards.
If a CD has been inserted incorrectly or cannot
be read,
Disc Unreadable appears in the
display.
Warning!G
Only insert a CD when the vehicle is station-
ary. There is a risk of accident by being dis-
tracted from road and traffic conditions if
you load a CD while the vehicle is in motion.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.

215 Controls in detail
Audio system
Loading an individual magazine
compartment: Press eject/load
button2.
A menu indicates which magazine com-
partments are currently loaded. The
first available magazine compartment
is indicated by a red number.
Press desired button1 to 6, in
the keypad to select a magazine com-
partment.
or
Slide omp or rotate ymz to select a
magazine compartment.
Press n to confirm.
The CD changer will switch to the se-
lected magazine compartment. The
message
Please Wait... appears in
the display.
Insert CD into CD slot1.
The CD changer automatically pulls the
CD into the CD slot1 and places it in
the selected magazine compartment.
The message
Loading Disc
appears in the display.
Press buttoné, or the eject/load
button2 on the audio control unit to
finish the loading process.
The CD changer plays the disc if it has
been inserted correctly and is permissi-
ble.
To interrupt loading procedure:
Press the eject/load button again.
or
Press buttoní in the center con-
sole (
page 184).
iIf the audio CD is printed on one side, this
side must face upwards when loaded. If neither
side is printed, the side to be played must face
downwards.
If a CD has been inserted incorrectly or cannot
be read,
Disc Unreadable appears in the
display.
iOnly insert a CD after the audio system has
prompted you to do so with the message
Please
Insert Disc
. Only insert one CD per mag-
azine compartment.
iThe loading process may take a while, de-
pending on the type of disc. If you do not insert a
disc, the display will switch back to the
Maga-
zine
menu after approximately 20 seconds.

216 Controls in detail
Audio system
Filling an empty magazine compart-
ments: Press eject/load button2.
A menu indicates which magazine com-
partments are currently loaded. The
first available magazine compartment
is indicated by a red number.
Slidemr to select the menu bar.
Slideompor rotate ymz the audio
controller to select
Fill Empty Slots.
Press the audio controller n.
The message
Please Insert Disc
appears in the display.
Insert CD into CD slot1.
The CD changer automatically pulls the
CD into the CD slot1 and places it in
an empty magazine compartment. The
message
Please Wait... appears in
the display. If the CD is loaded, the CD
changer will switch to the next empty
magazine compartment. The message
Please Insert Disc appears in
the display.
Repeat the steps until all compart-
ments have been loaded.
Press eject/load button2 on the au-
dio control unit to finish the loading
process.
The CD changer plays the last loaded
disc if it has been inserted correctly
and is permissible.
To interrupt loading procedure:
Press the eject/load button2 again.
or
Press buttoní in the center
console (
page 184).
The loading process has not been complet-
ed, the audio system will play the last in-
serted CD.
Ejecting CDs from CD changer*
iOnly insert a CD after the audio system has
prompted you to do so with the message
Please
Insert Disc
. Only insert one CD per mag-
azine compartment.
Warning!G
Only eject a CD when the vehicle is station-
ary. There is a risk of accident by being dis-
tracted from road and traffic conditions if
you unload a CD while the vehicle is in
motion.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.

217 Controls in detail
Audio system
Ejecting one CD: Press eject/load
button2.
The magazine menu with active main
area appears in the audio display. The
magazine compartment with the cur-
rent CD is highlighted.
Press desired button1 to 6, in
the keypad to select a magazine com-
partment.
or
Slideompor rotate ymz the audio
controller to select the desired CD.
Press n to confirm.
Remove the CD from CD slot1.
If you do not remove the CD from the
CD slot 1, the CD changer will auto-
matically pull the CD back in after a
short while.
Ejecting all CDs: Press eject/load
button2.
The magazine menu with active main
area appears in the audio display. The
magazine compartment with the cur-
rent CD is highlighted.
Slidemr to select the menu bar.
Slideompor rotate ymz the audio
controller to select “Eject All”.
Press n to confirm.
The CDs are ejected one after the
other.
Remove the CD from CD slot1.
The CD changer switches to the next
occupied magazine compartment and
ejects the CD.
If you do not remove the CD from the
CD slot 1, the CD changer will auto-
matically pull the CD back in after a
short while.
Repeat the last step until the magazine
is empty.
Selecting a CD
é
Changer.
The magazine menu with active main
area appears in the audio display. The
magazine compartment with the cur-
rent CD is highlighted.
Slideompor rotate ymz the audio
controller to select the desired CD.
Press n to confirm.
iIf you eject a CD while another is being
played, the audio system interrupts playback.
Playback will continue once the CD has been
ejected completely.

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*.

219 Controls in detail
Audio system
Selecting a track
Skipping forwards or backwards to
a track: Rotate ymz or slideomp.
or
Briefly press buttonG or H on
audio control unit.
Selecting from the track list:
é

Track List.
or
Press n when the main area is select-
ed.The track list appears. In MP3 mode,
the track list of the current folder ap-
pears. The dotR indicates the current
track.
Select a track by rotating ymz or slid-
ing qmr.
Press n to confirm.
Fast forward/rewind
Select main area.
Slide and hold omp until desired place
is reached.
or
Press and hold buttonG or H on
audio control unit.Selecting a folder
é
Folder.
or
Press n when main area is selected.
The track list of the current folder ap-
pears.
Selecting one folder higher: Select
the Q symbol.
The display changes to the next folder
up in the folder structure on the disc.
Selecting a folder: Slideqmror ro-
tate ymz the audio controller, to se-
lect the desired folder.
Press n to confirm.
You will see the tracks in the folder.
iSkipping forwards through the tracks skips
to the next track. Skipping backwards through
the tracks skips to the beginning of the current
track if the track has been playing for more than
8 seconds. If the track has been playing for less
than 8 seconds, it skips to the start of the previ-
ous track.
If you have switched on the “Random Tracks”
playback option, the order of the tracks is ran-
dom.iIn MP3 mode, the list shows all the tracks in
alphabetical order.
iThis function is only available in audio MP3
mode.