2005 MERCEDES-BENZ SLK-Class CD changer

31 At a glance
Quick reference COMAND
A common volume setting is provided for
Radio, Single CD, MP3, CD changer*, AUX
and Satellite radio* operating modes.
When setting the volume, the system auto-
matically stores the setting for the current-
ly active operating mode. The volume of
navigation announcements can be
changed only during an actual announce-
ment.
Setting the volume 
Turn the rotary control4 located on
the COMAND control unit,
or

Pressæ or ç on the multifunc-
tion steering wheelThe volume changes up or down, de-
pending on the direction of rotation or
which button was pressed.
The system stores the volume settings
when the device is switched OFF.
After switching the system back on again,
the volume may be lower than at the time
when the system was switched OFF.
This could be the case if
the system was switched OFF for more
than 15 minutes, and

the volume had been set to a value in a
certain range at the time the device
was switched OFF.Automatic volume control
The automatic volume control adjusts the
volume depending on

the vehicle’s speed (only in vehicles
without sound-system*),
or on
the interior ambient noises of the vehi-
cle (only in vehicles with sound-sys-
tem*)

other parameters (e.g. windows open
or closed)

32 At a glanceQuick reference COMANDA common balance setting applies to the
following operating modes:
Radio

Single CD

MP3

CD changer*

AUX

Satellite radio*When adjusting the balance, the system
automatically stores the setting for the
currently active operating mode.
Setting balance

Open the main menu of the appropriate
operating mode (
page 27).

Press the
Balance
soft key.
The Balance menu appears.

Press or :
The cursor moves horizontally, adjust-
ing the balance accordingly.
Storing new settings:

Press or the
Back
soft key,
or

wait until the display changes.
BalanceiFor Navigation* a different balance set-
ting is possible. You find the descrip-
tion under “Adjusting the acoustics for
navigation announcements”
(page 127).

33 At a glance
Quick reference COMAND
For the following operating modes, differ-
ent settings for bass and treble can be se-
lected:
Radio (FM waveband)

Radio (AM waveband)

Radio (Weather Band)

Single CD

MP3

CD changer*

AUX

Satellite radio*

Navigation*Bass and treble settings for navigation an-
nouncements are found under “Adjusting
the acoustics for navigation announce-
ments” (
page 127).
When adjusting bass or treble, the system
automatically stores the setting for the
currently active operating mode.
Setting bass and treble

Open the main menu of the appropriate
operating mode (
page 27).

Press the
Bass
or
Treble
soft key.
The Bass or Treble menu appears.

Press or :
The cursor moves horizontally, adjust-
ing bass or treble accordingly.
Bass and treble

34 At a glanceQuick reference COMANDStoring new settings:
Press or the
Back
soft key,
or

wait until the display changes.
If the vehicle is equipped with a sound sys-
tem*, the sound functions are available for
the following operating modes:

Radio

Single CD

MP3

CD changer*

AUX

Satellite radio*The following sound functions are avail-
able:

Default SettingsResets the sound functions* to the fac-
tory setting.

StandardNormal stereo playback.

SpeechPlayback optimized for speech compre-
hension.

LOGIC7 Surround7-channel-surround playback (not for
mono-sources like AM waveband or
Weather Band in radio mode).Different sound functions* can be activat-
ed for each one of the operating modes.
Example:
For CD mode: the
LOGIC7 Surround
function,
for Satellite radio* mode: the
Speech
func-
tion.
Switching sound functions*

Open the main menu of the appropriate
operating mode (
page 27).

Press the
Sound
soft key.
Sound functions*

37
Audio main menu
Radio operation
Single CD operation
MP3 operation
CD changer* operation
Audio AUX operation
Audio

38 AudioAudio main menu
Press.
The Audio main menu appears.
If one of the Audio submenus appears: 
Press the
Back
soft key as often as
necessary until the Audio main
menu appears;
or

Press again.Various audio sources can be selected in
the Audio main menu.
Selectable soft keys

Radio
soft key
Station settings for WB, FM, and AM
wavebands appear (
page 40),

CD soft key or
MP3
soft key
The Single CD main menu (
page 51)
or the MP3 main menu (
page 56) ap-
pears,

CDC
soft key
The CD changer main menu appears
(page 74),

AUX
soft key
Facilitates operation of an external au-
dio source (
page 82).
Calling up the Audio main menu
iThe
CD, MP3
or
CDC
soft key is available
only if a CD is loaded in the appropriate
compartment.
The Satellite Radio menu is accessed
by pressing5 (page 83).

68 AudioCD changer* operation

Only touch the CD on the edges.

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

Do not use rubbing alcohol or solvents
to clean CDs.

Do not expose the CDs to heat or direct
sunlight.

Do not write or put labels on CDs.
Safety instructionsWarning
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 when road,
weather and traffic conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
Warning
G
The CD changer is a Class 1 laser product.
There is a danger of invisible laser radiation
when you open or damage the cover.
Do not remove the cover. The CD changer
does not contain any parts serviceable by
the user. For safety reasons, have any nec-
essary service work performed by qualified
personnel.
Tips on caring for your CDs

69 Audio
CD changer* operation

Open the CD changer main menu
(page 74);
or

Load an audio CD into the CD changer.
The CD changer can play audio CDs and is
located in the glove box.Switching to CD changer modeCD changer
Loading CDsWarning
G
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and oper-
ate the audio system only when road, weath-
er and traffic conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.!Do not attach labels of any type to the
CD. They may become detached and
damage the drive.
!Your CD drive has been designed to
play CDs which correspond to the IEC
60908 standard. Therefore only CDs
not exceeding a thickness of 1.3 mm
can be used.
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.
Do not play single-CDs (80 mm) with an
adapter. Only use 12 cm diameter CDs.