2005 MERCEDES-BENZ C240 audio

201 Controls in detail
Audio system
Calling up the ESN information menu
Press
INF
soft key.

Press
ESN
soft key.
The twelve-digit electronic serial
number (ESN) of the SAT tuner*
installed in your vehicle is displayed.

Press
RET
soft key to exit the menu.
CD mode
Safety precautions
General notes
The system may not be able to play audio
CDs with copy protection.
Playing copied CDs may cause
malfunctions during playback.Warning!
G
The single CD player and the CD changer*
are Class 1 laser products. There is a danger
of invisible laser radiation if the housing is
opened or damaged.
Do not open the housing. The single CD
player and the CD changer* do not contain
any parts that can be serviced by the user.
For safety reasons, have any service work
which may be necessary performed only by
qualified personnel.
Warning!
G
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and
operate the audio system only if permitted
by road, weather and traffic conditions.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car covers a
distance of 44 feet (approximately 14 m)
every second.

202 Controls in detailAudio system
D o n o t u s e C D s w i t h a n e i g h t c m d i a m e t e r ,
not even with a CD adapter. Attempting to
play CDs with an eight cm diameter 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.
Should excessively high or low tempera-
tures occur while in CD changer mode*, CD TEMP
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*
play audio CDs.Tips on handling CDs


Handle CDs carefully to prevent
interference during playback.


Avoid scratches, fingerprints and dust
on the CDs.


Do not write on CDs or apply any labels
or other material to them.


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.
!If you affix stickers to the CDs, they can
become warped due to the heat that
develops in the CD drive or
CD changer.
In certain situations, the CDs can then
no longer be ejected and cause
damage to the drive. Such damage is
not covered by the Mercedes-Benz
Limited Warranty.!Your CD drive or CD changer has been
designed to play CDs which
correspond to the EN 60908 standard.
You can therefore only use CDs with a
maximum thickness of 1.3 mm.
If you insert thicker data carriers, e.g.
ones that have data on both sides (one
side with DVD data, the other side with
audio data), they cannot be ejected and
will damage the drive.

203 Controls in detail
Audio system
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.
!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 dam-
age to the CD drive not covered by the
Mercedes-Benz Limited Warranty.
iIf a CD has been inserted incorrectly or
cannot be read,
WRONG CD0
will appear
in the display.
iIf you do not take the CD out of the CD
slot within approx. 15 seconds, the
system automatically pulls the CD back
in and plays it.
If a CD is pulled back in, press
EJECTbutton for five seconds; the CD
will then be ejected.
iThe CD changer* may not be able to
play audio CDs with copy protection.

204 Controls in detailAudio system1CD
2CD changer
3CD tray
4CD magazine
Remove magazine4 and pull
CD tray3 fully out.

Place CD1 i n r e c e s s o f t r a y , l a b e l s i d e
up.

Push tray into magazine in direction of
arrow.

Pus h ma ga zine i nt o CD c hang er*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.
iCDs which have been inserted
improperly or are unreadable will not
be played.

205 Controls in detail
Audio system
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 trackSelecting 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.iIf there is no CD in the selected
magazine slot,
NO CD
appears in the
display with the corresponding slot
number.


206 Controls in detailAudio system
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 ten seconds, the unit
skips back to the beginning of the
track currently playing. If less than
ten 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.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. eight seconds in
ascending 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.
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.


207 Controls in detail
Audio system


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.
Pause function
The CD changer mode is interrupted by an
incoming call on the telephone*
(
page 213).


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.
iWhen you start the RPT function, the
RDM function is automatically
switched off.

208 Controls in detailAudio systemTrack 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*.
I f y o u r a u d i o s y s t e m i s s e t u p f o r t e l e p h o n e
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.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. three
seconds.PROCESSING
appears in the display until
the telephone is off. Afterward,
PHONE OFF
appears in the display.