2003 MERCEDES-BENZ M-Class ECO mode

40 Audio
Tape operation
Inserting
Press .
The control panel opens.
Insert a cassette into the cassette com-
partment.
The control panel closes automatically
after a few seconds.
Make sure that the wider portion of the
tape faces right.Ejecting
Press .
Press to eject the cassette.
Press .
The control panel closes. After the cas-
sette has been ejected, the MCS
switches to the last audio mode.
Inserting or ejecting a tapei
If a cassette is inserted, a cassette icon
will be displayed in the radio and CD
mode.

47 Audio
Tape operation
Cancelling blank skip
Press the highlighted softkey
“SKIP”.
This function provides the optimum play-
back of tapes recorded with Dolby B.Activating Dolby BPress the softkey .
The Dolby B mode is activated when
the is highlighted in the softkey
menu.
Cancelling Dolby B
Press the highlighted softkey
.
Activating pause
Press the softkey “II”.
The tape stops playing and “PAUSE” is
displayed in the tape menu.
Cancelling pause
Press the softkey “PLAY”.
Dolby B (noise reduction)
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The Dolby noise reduction system is
manufactured under license by Dolby
Laboratories Licensing Corporation.
The word Dolby and the double-D sym-
bol are trademarks of Dolby Labo-
ratories Licensing Corporation.
Pause
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The tape stops playing if you send or
receive a phone call.

50 Audio
CD operation
CD player locations

The single CD player* is located behind
the MCS control panel
You can play audio CDs or read data
from the navigation DVD.

The 6 disc CD changer*.
The status line in the main CD menu indi-
cates which component is being used for
CD playback.Tips on caring for your CDs

Only touch the CD on the sides.

Avoid touching the CD recording sur-
face with your fingers.

Clean the CD with a dry, lint-free cloth.
Wipe the CD in a straight line from the
center. Never wipe the CD in a circular
motion.

Do not use rubbing alcohol or solvents
to clean the CDs.

Do not expose the CDs to heat or direct
sunlight.

Do not write or put stickers on CD’s.
General information on CD mode
WarningG
The single CD player and CD changer are
Class 1 laser products. There is a danger of
invisible laser radiation if the cover is
opened or damaged.
Do not remove the cover. The single CD
player and the CD changer do not contain
any parts which can be serviced by the user.
For safety reasons, have any necessary ser-
vice work performed by an authorized Mer-
cedes-Benz center.
!
Use only CDs with a diameter of 12 cm;
do not use 8-cm CDs.
An 8-cm CD adapter may cause damage
to the CD changer and s
should not be
used.

51 Audio
CD operation
Inserting or ejecting a CD (Single CD play-
er*)
Inserting
Press .
The control panel is lowered.
Insert the CD into the CD slot with the
label side up. The CD will automatically
be fed into the CD player.
The control panel closes automatically
after a few seconds.Ejecting
Press .
Press to eject the CD.
Press .
The control panel is raised. After the
CD has been ejected, the MCS will
switch to the last audio mode.
Inserting or ejecting a CD
i
If an audio CD is inserted, an audio CD
icon is displayed when in the radio
or tape mode.
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If the control panel is in the down posi-
tion for more than 20 seconds, two suc-
cessive beeps will be heard.
This will continue at five second inter-
vals until the control panel is returned
to its normal position.
Press to return the control panel
to its closed position.
!
A lowered control panel can easily be
damaged. As soon as the CD is ejected,
close the control panel.
Do not place anything on the lowered
control panel.
i
If you do not remove an ejected CD, the
CD drive automatically retrieves it after
10 seconds.
The CD drive can read either

Navigation DVDs or

Audio CDs.

57 Audio
CD operation
MCS with single CD player* and CD chang-
er*
If you press , the MCS starts the CD
mode that was last activated. To switch be-
tween CD modes, press again.
Single CD player playback
Single CD player playback begins:

Automatically, by inserting a CD, page
42
The playback starts at Track 1.

By pressing when a CD is already
inserted in the CD slot, playback starts
at Track 1.
To stop CD playback
Eject the CD
or
Switch to the radio, tape or CD changer
or
Switch off the MCSCD changer playback
CD changer operation begins:

By pressing when CDs are insert-
ed in the CD changer, page 43.
Playback starts at Track 1.
To stop CD playback
Switch to the radio
or
Switch to tape or single CD player
mode
or
Switch off the MCSThe following error messages can appear
after is pressed:
“NO CD” - there is no CD inserted. In-
sert a CD.

“CD ERROR” - the inserted CD can not
be read. The CD may be inserted incor-
rectly, be damaged, or is not an audio
CD. The CD may be copy protected. If it
is a recorded CD (instead of a stamped
CD), the quality may be poor or the for-
matting incorrect.
Error messages

58 Audio
CD operation

Single CD mode: “NAVIGATION
DISC INSERTED...” - a navigation
DVD is inserted in the CD slot. Replace
the DVD with an audio CD.

CD changer mode: “MAG. EMPTY” -
there are no CDs in the magazine. Eject
the CD changer magazine and insert
CDs.

CD changer mode: “NO MAGAZINE” -
there is no magazine in the CD chang-
er. Insert a loaded magazine into the
CD changer.

CD changer mode: “CHANGER ER-
ROR” - have the MCS and the CD
changer checked by an authorized Mer-
cedes-Benz Center.Press a number key, e.g. to se-
lect the corresponding CD.
The screen as shown above appears for
4 seconds. The selected CD will be
highlighted. If the selected magazine
slot is empty, the “NO CD” message
and the number of the selected slot ap-
pears on the screen. The next CD in-
serted will be selected.Playback begins with track 1 of the select-
ed CD.
i
In the CD, radio and tape modes icons
are displayed for an inserted CD (single
CD player) or a connected and loaded
CD changer.
Selecting a CD
MCS with CD changer
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After the last track of the current CD
has been played, the next CD inserted
in the magazine is selected and play-
back continues with track 1.

64 Audio
Audio Adjustment
Activating sound optimization*
Only in vehicles with a premium sound
system*.
Press the softkey “ADJ” in any
audio menu.
Your current settings will be displayed
in the main audio adjust menu.
Select the parameter “SOUND” with
the softkeys or .
To select the desired sound settings,
press the softkeys , and
.Available sound optimizations

“STANDARD”- linear sound from the
center of the vehicle.

“SPEECH” - emphasis is placed on the
spoken word.

“DRIVER” - sound is optimized for the
front seats.

“AMBIENCE” - recreates the sound of
a room.Resetting audio adjustments
Return to the audio menu by pressing
the softkey “EXIT”.
Press and hold the audio menu softkey
“ADJ” for longer than 2 seconds.
All parameters are set to 0 and the
sound optimization is set to
“STANDARD”. The MCS automatically
returns to the audio mode.
i
You can only select one sound optimiza-
tion at a time.
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Sound Optimization is not available for
service sources.
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If your vehicle is equipped with the Bose
Audiopilot digital processor, digital
electronics will continually separate
program material from ambient noise
and modify the programming signal so
that you can enjoy the full musical
performance without making any
adjustments.
The normal operation of the Bose
Audiopilot could be interpreted as
volume fluctuations, however this is
normal operation.

76 Telephone
Telephone operation
Subsequent dialing
Transmitting other DMTF tones
During a call, press the number keys
through , or .
The number dialed appears in the menu
for 10 seconds after the last key is
pressed (subsequent dialing display).Dialing a number from the phone book
The phone book can be accessed using
either the softkey “NAME” or the
“NUM”.
The softkey “NAME” starts the al-
phabetic scrolling mode and the softkey
“NUM” starts the numeric scrolling
mode.
If there are no numbers located in the
memory, “PHONE BOOK MEMORY EMP-
TY” appears on the display.Opening the alphabetic scrolling mode
Make sure the main telephone menu is
displayed.
Press the softkey “NAME”.
or
Enter up to 2 letters with the number
keys through (e.g.: ).
To correct the last digit, press .
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You can only use the cellular telephone
to save numbers and names in the tele-
phone book. See your telephone Opera-
tor’s Manual.