2008 MERCEDES-BENZ SLK-Class audio 20 pro

58 AudioMP3 operation
Insert a MP3 CD face up into the CD
slot while COMAND is switched ON.COMAND pulls in the CD and loads the
data. It may take a while to load the da
-
ta, depending on the number of folders
and tracks.After loading, COMAND plays the CD.

Press
7.
COMAND ejects the CD.

Remove the CD from the slot.If you do not remove the CD from the
slot, COMAND will automatically pull it
back after approx. 7 seconds.

Open the Audio main menu ( page
38)
.

Press the
MP3
soft key.
COMAND loads the MP3 CD data. This
may take a while depending on the
number of folders and tracks.The MP3 main menu appears. You will
hear the last track played.
1Current folder2Current track3Elapsed track time4Track number within the current fold
-
er/number of tracks in current folder
Ejecting a MP3 CD MP3 main menu
iThe
MP3
soft key will only appear if an
MP3 CD has been loaded.
iOn MP3 tracks with variable bit rates,
the elapsed track time displayed may
deviate from the actual time elapsed.

59 Audio
MP3 operation
If the MP3 tracks are organized into folders
on the CD, you can select a folder from the
COMAND control unit.The following options are available:
Selecting via folder list

Selecting via extended folder list
Selecting via folder listOnly one folder can be viewed at a time.
1Current folder
Open the MP3 main menu
( page
58)
;

Press
 or  to select a folder.

Wait approx. 3 seconds without chang
-
ing the selection.The COMAND changes the folder and
loads the data from the new folder.

It may take a while to load the data, de
-
pending on the number of folders and
tracks.
Selecting via extended folder list
In the MP3 main menu
( page
58)
,
press the
Folder
soft key.
The extended folder list appears.

Press
 or  to select a folder.
Selecting folders iThe folder list only contains folders in
which MP3 tracks are stored.
iThe extended folder list only contains
folders in which MP3 tracks are stored.


60 AudioMP3 operation
Press
.
COMAND changes the folder and loads
the data from the new folder.

It may take a while to load the data, de
-
pending on the number of folders and
tracks.
The following options are available:
Selecting via track skip
( page
60)

Selecting via track list
( page
60)

Selecting via direct entry of the track number
( page
61)

Selecting via scan search
( page
61)
Selecting via track skip On the COMAND control unit
Open the MP3 main menu
( page
58)
.

For forward skipping press
-
;
or

For backward skipping press
,
.
The tracks skip immediately after
pressing one of the buttons.
On the multifunction steering wheel 
Switch the multifunction display in the
instrument cluster to the MP3 display ( page
27)
.

For forward skipping press
j;
or
For backward skipping press
k.
The tracks skip immediately after
pressing one of the buttons.
Selecting via track list The track list contains all tracks in the cur
-
rent folder. Only one track can be viewed
at a time.
Selecting a track
iForward skipping:

The next track is played.Backward skipping:

If the track has been playing longer
than approx. 10 seconds, the system
skips back to the beginning of the
track.

If less than 10 seconds have played,
the system skips back to the beginning
of the previous track.

61 Audio
MP3 operation
1Current track
Open the MP3 main menu
( page
58)
;

Press
 or  to select a different
track.
The current track remains playing while
selecting.

Press
, or wait approx. 3 seconds
without changing the selection.
The selected track is played.
Selecting via direct entry of the track
number
Open the MP3 main menu
( page
58)
.

Press
2
.
The Manual track input display ap
-
pears.
1Number of tracks in the current folder
(10 tracks)Example entry: Track 1
Press
3.
Example entry: Track 10
Press
3 and " in quick succession.

Wait approx. 3 seconds after entering
the number.The selected track is played.
Selecting via scan search Scan search is characterized as follows:
Scan search plays each track in the
current folder for approx. 8 seconds.

Scan search can be ended manually.

Scan search automatically stops at the
track listened to before the scan
search was started.iIt is not possible to enter a number
greater than the number of tracks in
the current folder.

64 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.

Open the CD changer main menu ( page
69)
;
or
Load an audio CD into the CD changer ( page
65)
.
The CD changer is located in the glove box
and can play audio and MP3 CDs.Permissible MP3 CDsThe CD changer can read CD-R and CD-RW
CDs.Permissible file systemThe permitted file system is Joliet for CD-R
and CD-RW.Permissible MP3 formatsThe CD changer supports the following file
formats:
MPEG1 Audio Layer 3

MPEG2 Audio Layer 3

MPEG 2.5 Audio Layer 3
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.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 CDsSwitching to CD changer mode
CD changer MP3 CDs

65 Audio
CD changer* operation
Permissible bit and scan rates Fixed and variable bit rates up to 320 kbps
are permissible.The permissible scan rates can be found in
the table below.
.Tips on copyrightPlease also refer to the tips on copyright ( page
57)
.
Playing MP3 CDsThe CD changer can play MP3 CDs as well
as audio CDs. All the CD changer functions
listed below also apply to the playing of
MP3 CDs.When playing MP3 CDs, only the first 99
tracks will be played back in successive or
-
der. After that, playback will begin with
track 1of the MP3 CD if
Repeat CD
is select
-
ed
( page
74)
. Folder selection is not pos
-
sible.
iIn everyday speech, the MPEG1 Audio
Layer 3 format has been replaced by
the designation “MP3”.
File format
Scan rate
MPEG1

Audio Layer 3
32 kHz, 44.1 kHz,
48 kHz
MPEG2

Audio Layer 3
16 kHz, 22.5 kHz,
24 kHz
MPEG2.5

Audio Layer 3
8 kHz, 11.025 kHz,
12 kHz
iIt is recommended to use MP3 tracks
with a bit rate of128 kbps or higher and
with a scan rate of 44.1 kHz or higher.
Lower rates may impair quality. This is
particularly true if the sound function LOGIC7 Surround
has been activated.
iDepending on the complexity of the di
-
rectory structure, playback of the first
track may in some cases be delayed.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.

66 AudioCD changer* operation
In order to load CDs, you will need to open
the glove box.1CD slot2
Magazine compartment buttons
The CD changer has a built-in magazine
which can hold up to six CDs.

The CD changer has six magazine compart
-
ment buttons 2 for controlling the loading
procedure. LEDs in the buttons indicate the status of
the corresponding magazine compart
-
ment.
Button LED OFF:

Magazine compartment empty

Button LED flashes green:

CD changer requesting CD to be load
-
ed

Button LED continuously red:

Magazine compartment loaded with a
CD
The status of a magazine compartment can
also be seen when selecting a CD in the CD
Selection menu
( page
71)
.
The CD slot 1 for loading CDs into the CD
changer is located above the buttons 2.
!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 will become stuck and
damage the drive.Data carriers which contain data on
both sides can cause play-back prob
-
lems because the storage layers are
thinner than one-sided data carriers.
!Do not play single CDs (80mm) with an
adapter. An adapter could become
stuck and damage the drive. Only use
12 cm diameter CDs.iThe CD changer may not be able to play
audio CDs with copy protection.

67 Audio
CD changer* operation
Loading options:
Loading a single magazine compart
-
ment


Loading all six magazine compart
-
ments

Loading a single magazine compart
-
ment 
Open the glove box

( Vehicle owner's manual).

Briefly press the button 2 of the emp
-
ty magazine compartment to be load
-
ed.

Wait until the LED in the button 2
flashes green.This indicates that the CD changer re
-
quests a CD.

Insert an audio CD into the CD slot 1
within approx. 15 seconds. Insert the
CD face up.The CD is pulled in. The red LED in the
corresponding magazine compartment
button 2 lights up continuously. The
system starts playing the CD. The loading procedure is completed.
Loading all six magazine compart
-
mentsInitial situation: all magazine compart
-
ments are empty.The CD changer loads all magazine com
-
partments beginning with compartment 1.
Open the glove box

( Vehicle owner's manual).
1CD slot2
Magazine compartment buttons

Press and hold the button of an empty
magazine compartment 2 for more
than 2 seconds.The LEDs of all magazine compartment
buttons 2 briefly light up green sever
-
al times.

Wait until the LED in the first magazine
compartment button 2 flashes green.This indicates that the CD changer re
-
quests a CD.
iLoading a magazine slot will stop the
playback of a CD in the changer.