2007 MERCEDES-BENZ C350 audio

203 Controls in detail
Audio system
Compatible file systems and compres-
sion methods
Use Romeo or Joliet. Depending on file for-
mat used, up to 128 characters are possi-
ble.
The following compression methods are
compatible:

MP3

WMA

WAVCompatible bit and sampling rates
Fixed and variable bit rates of up to
320 kBit/s are possible.
The following table lists possible sampling
rates:Information on copyright
The music tracks that you create for use in
MP3 mode or that you play in MP3 mode
are subject to copyright laws under appli-
cable international and national regula-
tions.
In many countries, the reproduction of
copyrighted materials is not permitted,
even if only for personal use, without the
express prior consent of the copyright
holder.
Please check the current copyright laws
for your country and comply with them.
These restrictions do not apply, for exam-
ple, to your own compositions and record-
ings, or for recordings for which
authorization has been obtained from the
copyright holder.
MPEG1
Audio Layer344.1 KHz, 48 KHz,
32 KHZ
MPEG2
Audio Layer322.5 KHz, 24 KHz,
16 KHz
MPEG2.5
Audio Layer311.025 KHz,
12 KHz, 8 KHz
WMA32 KHz, 44.1 KHz,
48 KHz
iOnly use MP3 tracks with a bit rate of 128
kBit/s or higher and with the specified sampling
rates.
The use of rates other than those specified may
lead to noticeably inferior sound quality.

204 Controls in detail
Audio system
MP3 playback
You can play an MP3 CD on the
CD changer* as you would any standard
audio CD. All of the functions described for
the CD changer also apply for the playback
of MP3 CDs. Keep in mind that the single
CD player in the audio system unit is not
able to read MP3 CDs.
The first 99 tracks on the CD, including
tracks in subdirectories, are recognized
and played. Any additional tracks will not
be played.
Operating the single CD player in the
audio system unit
Loading a CD
The single CD player in the audio system
unit has capacity for one CD. The CD slot
for loading the drive is located underneath
the soft keys.
Make sure the system is switched on.
Insert CD into CD slot. The label side of
the CD must face upwards.
The system automatically pulls the CD
into the CD slot. The audio CD begins
to play.
Ejecting a CD
Make sure the system is switched on.
Press EJECTbutton.
The system ejects the CD.
NO CD will
appear in the display.
Remove CD from slot.
Operational readiness of CD changer*
If a CD changer* has been installed in the
vehicle, it can be operated from the front
control panel of the audio system.
A loaded magazine must be installed to
play CDs.
The CD changer* is located in the glove
box.
Loading/unloading the CD magazine
Slide changer door to the right and
press gbutton.
Magazine will be ejected.
iDue to the branched data structure, play-
back of the first track may be delayed slightly.
iKeep in mind that the single CD player in the
audio system unit is not able to play CDs with
MP3 files.
!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.
iIf a CD has been inserted incorrectly or can-
not be read,
WRONG CD ERROR will appear in the
display.
iIf you do not take the CD out of the CD slot
within approx. 15 seconds, the system automat-
ically pulls the CD back in and plays it.
If a CD is pulled back in, press EJECTbutton for
5 seconds; the CD will then be ejected.
iThe CD changer* may not be able to play au-
dio CDs with copy protection.

205 Controls in detail
Audio system
1CD
2CD changer
3CD tray
4CD magazine
Remove magazine4 and pull
CD tray3 fully out.
Place CD1 in recess of tray, label side
up.
Push tray into magazine in direction of
arrow.
Push magazine into CD changer*2 in
direction of arrow and close sliding
door.
Playing CDs
Single CD player in the audio unit
Pressi button.
CD 0 will appear in the upper left-hand
corner of the display.
The CD will resume playback at the point
where it was switched off.
CD changer*
Press Q button.
CD and the selected magazine slot
number appear in the upper left-hand
corner of the display.
If you have not removed a CD since the last
time the CD audio source was activated,
the last CD listened to will begin to play at
the point where it was switched off.After the last track on a CD has finished,
the next CD is automatically played.
Playing tracks
You have the following options:

Audio system with CD changer*:
selecting CDs

Direct track entry

Track skip forward/reverse

Fast forward/reverse

Scan

Random tracks

Repeat track
iCDs which have been inserted improperly or
are unreadable will not be played.

206 Controls in detail
Audio system
Selecting CDs in the audio unit with CD
changer*
You can select from among the
inserted CDs with buttons
Rto6.
R = CD player in the audio unit
1to6 = CDs in the
CD changer*
The magazine slot number of the
selected CD appears next to
CD in the
display, and the number of the
currently played track appears next
to
TRACK.Direct track entry
You can make a direct selection from
among the tracks on a CD.
Press * button.
Enter track number using buttons 1
to R.
The number of the track being played
appears next to
TRACK in the display.
You can only enter available track
numbers.Skipping tracks forward/backward

Skipping tracks forward
Press S button briefly.
The next track will be played.

Skipping tracks backward
Press T button briefly.
If the track has been playing for
more than 10 seconds, the unit
skips back to the beginning of the
track currently playing. If less than
10 seconds have been played, the
unit skips back to the beginning of
the previous track.
Pressing the T or S button
repeatedly will result in multiple tracks
being skipped.
iIf there is no CD in the selected magazine
slot,
NO CD appears in the display with the cor-
responding slot number.

207 Controls in detail
Audio system
Fast forward/reverse

Fast forward
Press and hold S button until
desired point has been reached.

Reverse
Press and hold T button until
desired point has been reached.
Scan

Starting scan
Press SC soft key.
SC will appear in the display.
Each track on the current CD will be
played for approx. 8 seconds in as-
cending order.

Ending scan
Press SC soft key or T or S.Random play
The random function (RDM) plays the
tracks of the current CD in random order.

Switching on random
Press RDM soft key.
RDM appears in the display.
A randomly selected track is
played.

Switching off random
Press RDM soft key again.Repeat
The track being played is repeated until the
repeat function is switched off.

Switching on repeat
Press RPT soft key.
RPT appears in the display.

Switching off repeat
Press RPT soft key again.
iThe track number and the relative time of
the track is shown in the display during the
search.
iWhen you start the RDM function, the RPT
function is automatically switched off.iWhen you start the RPT function, the RDM
function is automatically switched off.

208 Controls in detail
Audio system
Pause function
The CD changer mode is interrupted by an
incoming call on the telephone*
(
page 212).

Switching on pause function
Press U button.
The CD changer mode is
interrupted and
PAUSE appears in
the display.

Switching off pause function
Press U button.
The CD changer mode is active
again.Track and time display
Press T soft key.
The number of the track being played
and the elapsed playing time appear in
the display.
Press T soft key again.
The total number of tracks and the total
playing time of the CD appear in the
display.
Press T soft key.
The standard CD playback menu
appears in the display.
GSM network phones
Using your Mercedes-Benz specified
mobile telephone*, a number of functions
and operating steps can be performed and
displayed in the audio system display.
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel
and the cellular telephone*.
If your audio system is set up for telephone
operation, the tsymbol will appear in
the display.
When you insert your Mercedes-Benz
specified mobile telephone* into the
telephone cradle, you will be prompted to
enter your PIN for 30 seconds
(
page 209). This display disappears
when you press any button.
When your mobile telephone is inserted
into the telephone cradle, you will see the
reception strength in the upper right-hand
corner of the display.

209 Controls in detail
Audio system
Switching on the telephone
Switching on the telephone
Pressh button.
If the telephone was previously
switched off,
PROCESSING appears in
the display and you will then be
prompted to enter your PIN.
Switching off the telephone
Pressh button for approx.
3 seconds.
PROCESSING appears in the display until
the telephone is off. Afterward,
PHONE OFF appears in the display.PIN entry
Enter PIN number using buttons 1
to R.
If necessary, correct number entered
with the
CLR soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
Press OK soft key after entering correct
PIN.
READY or ROAMING will appear in the
display.Adjusting the volume
Turn rotary control of N button
during a telephone call.
The volume will increase or decrease
depending on the direction turned.
Adjusting sound
Adjust sound during a telephone call.
Sound adjustment (
page 191).
iIf the PIN is entered incorrectly three times,
NEED PUK will appear in the display. Enter PUK
via your telephone. Please refer to the separate
telephone operating instructions for more
information.
iThe volume can be adjusted separately for
telephone mode and audio mode.

210 Controls in detail
Audio system
Placing a call
Entering a telephone number and
starting the dialing process
Enter desired telephone number using
buttons 1 to R.
The number can have up to 32 digits,
but only twelve of these are visible in
the display.
If necessary, correct number entered
with the
CLR soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
After correct telephone number has
been entered, press s button.Phone book
The numbers stored in the phone book of
the telephone can be called up either by
name or number.
In addition, incoming calls are stored in the
phone book.

Searching and calling up telephone
book entries by name
You can access your mobile
telephone’s phone book using the
audio system. You can access both the
main entries and the sub-entries of
your phone book.
Press MEM soft key or press
button‚ orƒ.
Press desired numerical key 2
to 9.
The stored entries are selected
according to the alphabetical order
of the initial letters (e.g. for
S-Smith, press button 7 four
times).
or
Press and hold button ‚
orƒ.
The system jumps from one initial
letter to the next in ascending or
descending order.
iIf the telephone number has been saved to-
gether with a name in the telephone book, the
name will appear in the display.
iThis is only possible, however, when the call
information transmitted includes the number of
the person calling. If the telephone number is not
transmitted,
NO NUMBER will be stored in the
phone book.