2004 MERCEDES-BENZ C240 4MATIC WAGON Owner's Manual

185 Controls in detail
Audio system
Dolby NR
1 (noise reduction system)
To enable optimum sound reproduction of
cassettes recorded using Dolby B NR, the
Dolby NR system should be switched on.Switching on

Press the
NR key.
NR is highlighted in the display.
Switching off

Press the
NR key.
The highlighted
NR in the display disap-
pears.
CD changer* operation
General notes
Should excessively high temperatures oc-
cur while in CD mode,
CD TEMP HIGH
will
appear on the display and the CD will be
muted. The unit will then switch back to
the last operating mode used until the tem-
perature has decreased to a safe operating
level.
Should excessively low temperatures oc-
cur while in CD mode,
CD TEMP LOW
will ap-
pear on the display, but the CD will
continue to play.
Handle CDs carefully to prevent interfer-
ence during playback. Avoid fingerprints
and dust on CDs. Do not write on CDs or
apply any labels or other material to them.
1DOLBY and the double-D symbolÙ are trade-
marks of Dolby Laboratories Licensing Corpora-
tion.
The Dolby noise reduction system is manufactured
under license from Dolby Laboratories Licensing
Corporation.iThe Dolby NR function should be
switched off when playing cassettes
not recorded with Dolby B NR.

186 Controls in detailAudio systemOnly use original CDs. Using copied CDs
may create problems during playback.
Clean CDs from time to time with a com-
mercially available cleaning cloth. Do not
use solvents, anti-static sprays, etc. for
cleaning. Replace the CD in its case after
use. Protect CDs from heat and direct sun-
light.
Only use CDs, which bear the label shown
and that conform to the compact disc
digital audio standard (IEC 60908). You
can therefore only use CDs with a maxi-
mum thickness of 1.3 mm.Operational readiness of CD changer
If a CD changer has been installed in the
system, it can be operated from the front
control panel of the radio. A loaded maga-
zine must be installed to play CDs.
Loading/unloading the CD magazine

Slide changer door to the right and
press eject buttong.

The magazine will be ejected.
iUse of CDs which do not meet this
standard may cause damage to the CD
changer. Do not play single-CDs
(80 mm) with an adapter.
Your CD drive has been designed to
play CDs which correspond to the
EN 60908 standard.
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.Warning!
G
The CD changer* is a Class 1 laser product.
There is a danger of invisible laser radiation
if the cover is opened or damaged.
Do not remove the cover. The CD changer*
does not contain any parts which can be ser-
viced by the user. For safety reasons, have
any service work which may be necessary
performed only by qualified personnel.

187 Controls in detail
Audio system
1CD
2CD changer
3CD tray
4CD magazine
Remove magazine and pull CD tray fully
out.

Place CD in recess of tray, label side
up.

Push tray into magazine in direction of
arrow.

Push magazine into CD changer in di-
rection of arrow and close sliding door.
Playing CDs

Pressi button.CD will appear on the display.
The last CD listened to will then start play-
ing at the point where it was switched off.
After the last track on a CD has finished,
the next CD is automatically played.Selecting CDs

You can select from among the CDs in
the CD magazine using buttons4
to6.CD a n d t h e m a g a z i n e s l o t n u m b e r o f t h e
s e l e c t e d C D a p p e a r o n t h e d i s p l a y . T h e
number of the current track is dis-
played after
TRACK
.
If there is no CD in the selected maga-
zine slot,
NO CD
appears on the display
with the corresponding slot number.
iCDs which have been inserted improp-
erly or are unreadable will not be
played.

188 Controls in detailAudio systemSkipping tracks forward/backward

Skipping tracks forward
Pressf button.
The next track will be played.


Skipping tracks backward
Presse button.
If the track has been playing for
more than ten seconds, it will revert
to the start of that track. If it has
been playing for less than ten sec-
onds, it will revert to the preceding
track.
Pressing thef or ebutton repeat-
edly will result in multiple tracks being
skipped.
Fast forward/reverse


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


Fast reverse
Press and holdc button until
desired point has been reached.
Scanning


Starting scan
Press2 button.SC appears in the display.
Each track on the current CD will be
played for approx. eight seconds in
ascending order.


Ending scan
Press2, d, c, f or
ebutton.
Random play
The random play function (RDM) plays the
tracks on the current CD in random order.


Switching on random play
Press the
RDM
key.
RDM
is highlighted in the display.


Switching off random play
Press the
RDM
key.
The highlighted RDM
in the display
disappears.
iThe relative time of the track is shown
on the display during the search.

189 Controls in detail
Audio system
Repeat
The repeat function (RPT) repeats the cur-
rent track.
Switching on repeat:
Press the
RPT
key.
RPT
is highlighted in the display.
Switching off repeat:

Press the
RPT
key.
The highlighted RPT
in the display dis-
appears.Track and time display

Press the
T key.
The number of the track being played
and the elapsed playing time appear in
the display.

Press the
T key.
The total number of tracks and the total
playing time of the CD appear in the
display.
The CD main menu appears again after
eight seconds.
Telephone* operation
Various car telephone* functions and op-
erating steps for the car telephone can be
performed and displayed via the audio sys-
tem.
Further operating instructions not covered
here can be found in the operating
instructions for the multifunction steering
wheel, voice control* and the telephone*.
iThe Random play and Repeat function
cannot be used simultaneously.

190 Controls in detailAudio systemSwitching on the telephone
Pressh button.
If you have programmed an unlock
code for the telephone, you must enter
the code now.

Enter the desired telephone number
using buttons4 toM.

If necessary, correct number entered
with the
CLR
key. Press key briefly to
delete the last digit entered; press key
and hold to delete the complete num-
ber.

Press the
OK key after entering correct
code.
The telephone is unlocked. If you have
entered the wrong code, you must re-
peat the entering procedure with the
correct code.Switching off the telephone

Pressh button repeatedly until PHONE OFF
appears in the display.
The receiving symbol in the display
disappears.
Adjusting the volume

Turn control knoba during tele-
phone operation.
The volume increases or decreases de-
pending on the direction in which the
knob is turned.Placing a call
Entering a telephone number and
starting the dialing process

Enter the desired telephone number
using buttons4 toM.
The number can have up to 32 digits,
but only 13 of these are visible on the
display.
If necessary, correct number entered with
the CLR
key.

Press key briefly to delete the last digit
entered.

Press key and hold to delete the com-
plete number.

After correct telephone number has
been entered, press the
SND
key.
iThe volume can be adjusted separately
for the telephone*, voice control sys-
tem* and radio.

191 Controls in detail
Audio system
Phone book
The numbers stored in the phone book can
be called up either by name or number.
Calling up the phone book
Pressd, c, f or
ebutton.Switching between name search and
number search

Press the
ABC
key.
The name search is called up.
or

Press the
NUM
key.
The number search is called up.
Searching and calling up phone book en-
tries by name

Press the
ABC
key.
The current name is highlighted on the
display.

Press either thed or cbutton.
The stored entries are selected accord-
ing to the alphabetical order of the ini-
tial letter.
or

Press either thef or ebutton.
The stored entries are selected in
increments of four.
or

Press the desired numerical key2
to9.
The stored entries are selected accord-
ing to the alphabetical order of the ini-
tial letters (e.g. for B -Brown, press
button2 twice).iSeveral characters and symbols cannot
be shown on the display for technical
reasons. They have been replaced with
spaces.

192 Controls in detailAudio systemSearching and selecting phone book en-
tries by number
Press the
NUM
key.
The current number is marked in the
display.

Press either thed or cbutton.
The stored entries are selected
according to numerical order.
or

Press either thef or ebutton.
The stored entries are selected in
increments of 5 (e.g. Entry
M5, Entry
M10
,etc.)Starting dialing process

Once you have selected a number,
press the
SND
key.
Repeat dialing
If the number dialed is busy, you can again
place calls to the last ten telephone num-
bers dialed using the repeat dialing func-
tion.Manual repeat dialing (redial)

Press the
SND
key.
The last number dialed is shown in the
display.

Select the desired telephone number
usingd, c, f or
ebutton.
The abbreviation
L and the number of
the entry are shown in the top line of
the display.

When you have selected a number,
press the
SND
key.
The call will be made.