2003 MERCEDES-BENZ M-Class key

49 Audio
CD operation
FunctionPage
1Switches CD operation
on (single CD player*,
CD changer*)56
2Color screen
3Press to:
Open and close the con-
trol panel
The CD slot is located
behind the control panel.
51
4Press to:
Switch the MCS on and
off
Turn to:
Adjust the volume
14
16
5Playing a CD (CD chang-
er)
Selecting a track58
5 9
6Joystick
: Track select for-
ward
: Track select re-
verse
: Music seek for-
ward
: Music seek re-
verse
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59
60
60
7Softkeys
“II”: Pause
“RDM”: Random play
“RPT”: Repeat
“TIME”: Select time dis-
play
“ADJ”: Audio adjust-
ment
“SCAN”: Scan
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61
61
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63
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FunctionPage

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.

59 Audio
CD operation
I
You can select a track by using

the joystick

the number keypad
Selecting a track using the joystick
Next track
Push the joystick to .
Previous track or start of title (if more than
10 seconds of playing time has elapsed)
Push the joystick to .Select any desired track
Push the joystick to or as
often as necessary.
Selecting a track using the number keypad
Press and enter the number of
the track you wish to select, e.g.
and .
Track select i
To enter a single digit track number, you
can enter zero (0) followed by the track
number, e.g. 01, or simply enter the
track number, e.g. 1, and wait 4 sec-
onds to have the track selected auto-
matically.
When entering a two digit number you
must enter the second digit within 4
seconds. Otherwise, the function
switches off and the screen returns to
the previous display.
If you enter a track number which is
higher than the last track on the disk,
“INVALID TRACK” appears on the
display. The current track keeps play-
ing.

60 Audio
CD operation
Forward
Push the joystick to .
The CD seeks forward as long as you
push the joystick.
Backward
Push the joystick to .
The CD seeks backward as long as you
push the joystick.The tracks on a CD can be scanned in suc-
cession for 8 seconds each.
Activating scan
Press the softkey “SCAN”.
Scan begins and “SCAN” is highlighted
in the softkey menu.Cancelling scan
Press the highlighted softkey
“SCAN”.
or
Push the joystick in any direction.
Playback resumes with the desired
track.
Music seekCD track scan

61 Audio
CD operation
Activating repeat
Press the softkey “RPT”.
The current track repeats until you
switch the function off.
The repeat mode is activated when
“RPT” is highlighted in the softkey
menu.
Cancelling repeat mode
Press the highlighted softkey
“RPT”.Activating random play
Press the softkey “RDM”.
The tracks on the currently selected CD
play back in a random order.
The random mode is activated when
“RDM” is highlighted in the softkey
menu.Selecting the next / previous track
Push the joystick to or .
The next or previous track in the ran-
dom list plays.
Cancelling random play
Press the highlighted softkey
“RDM”.
CD track repeati
You cannot activate the repeat mode
and the random mode at the same time.
You can only select one mode at a time.
CD track random play
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You cannot activate the repeat mode
and the random mode at the same time.
You can only select one mode at a time.

62 Audio
CD operation
Activating the pause
Press the softkey “II”.
The CD stops playing and “PAUSE”
appears in the display.
Cancelling pause
Press the softkey “PLAY”.When this function is selected, the main
CD menu displays the current track and
elapsed time.
Press the softkey “TIME”.
The total numbers of tracks and the to-
tal playing time are displayed.
To return
Press the softkey “TIME”.
or
Wait 4 seconds to automatically return
to the main CD menu.
Pause
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The CD stops playing if a phone call is
sent or received.
Elapsed time display

63 Audio
Audio Adjustment
Audio Adjustment
The sound settings for all audio sources
can be adjusted.
Audio sources include

Radio FM, AM, WB

Tape

CD (Single CD, CD changer)
Each audio source has its own audio ad-
justments for bass and treble.
All audio sources share the balance and
fader functions.Setting Bass/Treble/Balance/Fader
Press the softkey “ADJ” in any
audio menu.
Your current settings are displayed in
the main audio adjust menu.To select the parameter you want to
adjust, press the softkeys
or .
The selected parameter is highlighted.
To set the desired values, press the
softkeys “-” and “+” or “L”
and “R”.
To reset the selected parameter press
and hold both softkeys , “-” and
“+” or “L” and “R” for longer then 2
seconds.
Once you are satisfied with the sound
setting, press the softkey
“EXIT”.
Audio Adjustment
i
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 per-
formance without making any adjust-
ments.
The normal operation of the Bose
Audiopilot could be interpreted as
volume fluctuations, however this is
normal operation.

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.
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You can only select one sound optimiza-
tion at a time.
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Sound Optimization is not available for
service sources.
i
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.