audio MERCEDES-BENZ SL-CLASS ROADSTER 2013 Service Manual

X
To exit the menu: press the V eject/
load button again or press the % back
button.
or
X Select Back by sliding VÆ and turning
cVd the COMAND controller and press
W to confirm.
Inserting and ejecting an SD memory
card General information
COMAND supports SD memory cards
(Secure Digital) and SDHC memory cards
(Secure Digital
High Capacity).
i Not all memory cards available on the
market are designed for the temperatures
which may be reached in the vehicle.
If the SD memory card is no longer in use,
you should remove it from COMAND. High
temperatures can damage the card.
Due
to the wide range of SD memory cards
available on the market, playback cannot
be guaranteed for all brands of SD memory
card.
The readable storage capacity depends on
the memory card used. You can obtain
further information at any authorized
Mercedes-Benz Center.
Inserting an SD memory card
X Insert the memory card into the slot on the
control panel until it engages in place. The
side with the contacts must face
downwards and point towards the slot.
COMAND loads the memory card and
shows a message to this effect. If no MP3
tracks can

be found, you will see a message
to this effect.
Ejecting an SD memory card
X Press the memory card.
The memory card is ejected.
X Remove the memory card from slot. Connecting a USB device The USB port is located in the stowage
compartment in the center console.
Electrical consumption at this connection
must not exceed a continuous current of
500 mA
. If the electrical consumption is
higher, use a separate source to provide
power for the USB device (e.g.
12 V power supply

).
X Connect the USB device (e.g. USB stick) to
the USB port.
i Due to the wide range of USB devices
available on the market, playback cannot
be guaranteed

for all brands of USB device.
Information about suitable USB devices
can be obtained from an authorized
Mercedes-Benz Center.
MP3 players must support Media Transfer
Protocol (MTP).
Activating audio CD/DVD or MP3 mode Automatic switching
X
Insert/eject CDs/DVDs (Y page 421)
or
X Insert an SD memory card (Y page 424)
or
X Connect a USB device ( Y page 424).
COMAND loads the medium inserted and
starts to play it.
Switching modes using the function
button
X Press the h
function
button one or more
times.
i By pressing the function button
repeatedly, you can change the operating
mode in the following order:
R audio CD/DVD/video DVD/MP3 CD/
MP3 DVD in the DVD changer or single
DVD drive (disc mode)
R memory card mode
R MUSIC REGISTER424
Audio
COMAND

R
USB storage device
R Media Interface or audio AUX mode
R Bluetooth ®
audio mode
X Select an audio medium from the media list
(Y page 426).
Switching modes via the audio menu
X Select Audio in the main function bar by
sliding ZV and
turning cVd the COMAND
controller and press W to confirm.
The last active audio source is now
activated.
You can activate a different audio source
using the audio menu.
X Select Audio by sliding ZV and turning
cVd the COMAND controller and press
W to confirm.
The audio menu appears.
X Select Disc, Memory Card, Music
Register, USB Storage or Media
Interface and press W to confirm.
This switches to the desired audio source.
X Select an audio medium from the media list
(Y page 426).
Example display: audio CD mode :
CD cover (if available)
; Gracenote data is read, then the elapsed
track time
= Track number and track name (if stored
on the disc as CD text or if Gracenote ®
data is available)
? Graphic time and track display A
Disc type, disc position in the media list
and disc

name (if stored on the disc as CD
text or if Gracenote ®
data is available)
B Artist (if stored on the disc as CD text or
if Gracenote ®
data is available)
C CD mode menu
Example display: audio DVD mode :
Cover (if available)
; Track time
= Track number
? Graphic time and track display
A Disc type, disc position in the media list,
disc name (only if stored on the disc)
B Audio DVD mode menu
Example display: MP3 mode :
Cover (if available)
; Track time
= Track number and name
? Graphic time and track display
A Medium type, position of medium in the
media list, current folder Audio
425
COMAND Z

B
Artist (if available)
C MP3 mode menu
Pause function In audio CD/DVD and MP3 mode
X
To pause playback: briefly press the
8 button.
The , symbol appears at the top left in
the status bar.
X To continue playback: briefly press the
8 button again.
The , symbol disappears.
In audio DVD mode only
X To pause playback: switch on audio DVD
mode ( Y page 424).
X Select Ë by sliding VÆ and turning
cVd the COMAND controller and press
W to confirm.
The Ë display changes to Ì.
X To continue playback: select Ì and
press W to confirm.
Playback continues
from the point where it
was interrupted. The Ì display changes
to Ë.
Stop function This function is only available in audio DVD
mode.
X
Switch on audio DVD mode (Y page 424).
X To interrupt playback: select É by
sliding VÆ and

turning cVd the COMAND
controller and press W to confirm.
The Ë display changes to Ì. The
É symbol remains highlighted.
X To continue playback: select Ì and
press W to confirm.
Playback continues

from the point where it
was interrupted. X
To stop playback: while playback is
interrupted, select É again and press
W to confirm.
or
X Select É and confirm by pressing W
twice in rapid succession.
Ì is highlighted.
X To restart playback: select Ì and
press W to confirm.
Playback starts at the beginning of the
DVD.
Selecting audio CD/DVD/MP3 discs Selecting via the media list
Media list when equipped with a DVD changer
X
In CD/audio DVD and MP3 mode: select
Media by sliding VÆ or turning cVd the
COMAND controller and press W to
confirm.
The media

list appears. The # dot indicates
the current medium being played.
The media list shows the discs currently
available.
View in ::
R G magazine tray not shown
R I magazine tray shown426
Audio
COMAND

X
To switch the display: select 1...6
Changer by turning cVd the COMAND
controller and press W to confirm.
Depending on the previous setting, the
magazine trays are shown or not shown.
i If a
disc cannot be read, an entry appears
next to the corresponding magazine tray. Media list showing all magazine trays
X
Select the data medium by turning cVd
the COMAND controller and press W to
confirm.
The following tables list the selection options
in the

media list for the respective equipment
variants. For DVD changer
Magazine trays, positions 1 to 6: readable
data
media

are audio CDs, MP3 CDs or MP3
DVDs, audio DVDs and video DVDs. Memory card, position 7
MUSIC REGISTER, position 8
USB storage device, position 9
Media Interface, position 0
Bluetooth
®
audio Equipped with a single DVD drive
DVD drive, position 1: readable data media
are audio CDs, MP3 CDs or MP3 DVDs,
audio DVDs and video DVDs.
Memory card, position 2 MUSIC REGISTER, position 3
USB storage device: position 4
Media Interface: position 5
Bluetooth
®
audio: position 6 i
If you select a video DVD, the system
switches to video DVD mode
(Y page 453).
Selecting a track using the number
keypad
X When the display/selection window is
active, press a number key, e.g. n.
The medium at the corresponding position
in the

media list is loaded and then played.
Selecting a track Selecting by skipping to a track
X
To skip forwards or back to a track: turn
cVd
the COMAND controller when the
display/selection window is active.
or
X Press the E or F button.
The skip

forward function skips to the next
track.
The skip back function skips to the
beginning of the current track if the track
has been playing for more than
eight seconds. If the track has been playing
for less than eight seconds, it skips to the
start of the previous track.
If the Random Tracks or Random Folder
playback option has been selected, the
track order is random.
Selecting a track using the number
keypad
X Press the ¯ key
on the number keypad.
A numerical entry field appears. The
number of positions offered corresponds to
the number of tracks on the CD/DVD. Only Audio
427
COMAND Z

numbers that correspond to a track
number on the CD/DVD can be entered.
X Enter the desired track number using the
number keys.
The track plays after the last possible
number is entered.
i Pressing and holding a number key for
more than two seconds completes the
entry, and the corresponding track is
played.
Selecting a track using music search X
Select Current Tracklist, Folder or a
category and press W to confirm.
Select music via categories (e.g. album,
artist) with the music search function.
If you select a category, COMAND starts a
search for track information if the following
conditions are fulfilled:
R the data
carriers are inserted or connected
R the track information from these data
carriers is not yet contained in the
COMAND music database
COMAND imports track information from the
following data carriers:
R disc (audio CD/DVD/MP3)
R memory card
R MUSIC REGISTER
R USB storage device
The Track information is complete.
message appears once the search is
completed. COMAND stores the music data
in its own database. You can now select the available music data within the desired
category.
You
will

find further information on searching
for music in the "Music search" section
(Y page 433).
X In audio CD/audio DVD mode/MP3 mode,
select Search by sliding VÆ and turning
cVd the COMAND controller and press
W to confirm.
The category list appears. Example: current track list
X
Select the track by turning cVd the
COMAND controller and press W to
confirm.
The basic display appears and the track is
played.
Fast forwarding/rewinding X
While the display/selection window is
active, slide XVY and hold the COMAND
controller until the desired position has
been reached.
or
X Press and hold the E or F button
until the desired position is reached.
Gracenote Media Database Introduction
This function is only available in audio CD
mode.428
Audio
COMAND

There is a version of
Gracenote® music recognition technology,
Emeryville, California, USA on the
COMAND
hard disk. You will recognize this by the logo
which can be seen in the bottom right-hand
corner of certain audio displays.
Many audio CDs contain CD text. COMAND
uses the information contained therein to
display the artist, album and track name.
If
the audio CD does not contain any CD text
information, COMAND can use the
Gracenote ®
Media Database to identify
unknown audio tracks when in audio CD
mode. This is only possible if the relevant
information is saved in the Gracenote Media
Database and if the "Gracenote Media
Database" function is activated.
If this is the case, COMAND will display the
corresponding data such as artist, album and
track name in the relevant displays and lists.
Selecting Gracenote ®
data to be displayed X
Switch on audio CD mode ( Y page 424).
X Select CD by sliding VÆ and turning cVd
the COMAND controller and press W to
confirm.
X Select Gracenote Media Database by
turning cVd the COMAND controller and
press W to confirm.
A menu appears.
The # dot indicates the current selection
for the display.
If several entries exist for the CD of a
particular artist, you can select which of the
entries should be shown.
If the inserted CD does not contain any
Gracenote® data, the Gracenote Media
Database menu item is shown in gray and
cannot be selected.
X Select an entry by turning cVd the
COMAND controller and press W to
confirm.
Switching the Gracenote ®
data display
on/off
X Switch on audio CD mode ( Y page 424).
X Select CD by sliding VÆ and turning cVd
the COMAND controller and press W to
confirm.
X Select Gracenote Media Database by
turning cVd the COMAND controller and
press W to confirm.
X To switch off the display: select
None
and
press W to confirm.
In the basic display, Track 1, Track 2 etc.
are shown instead of the Gracenote ®
data,
for example ( Y page 425).
X To switch on the display: select an entry
in the menu by turning cVd the COMAND
controller and press W to confirm.
Updating Gracenote ®
music recognition
technology and the Gracenote Media
Database
Due to

the release of new CDs, the digital data
on the Gracenote Media Database must be Audio
429
COMAND Z

updated. Optimum functionality can only be
attained with up-to-date Gracenote
®
music
recognition technology. Information about
new versions can be obtained from an
authorized Mercedes-Benz Center.
You can have your music recognition
software updated there with a DVD, or you
can update it yourself.
i The Gracenote Media Database is
updated in
conjunction with the navigation
system's digital map ( Y page 353).
Displaying the track and album X
Press z.
The current track and album are displayed
in a window.
Displaying metadata (MP3 mode) COMAND can also display the album name
and artist (metadata) during playback if this
information has been entered into the
system.
For
all

media that contain MP3 data (e.g. MP3
CD, SD memory card, MUSIC REGISTER), you
can determine whether:
R the metadata contained in the tags of the
encoded music data should be displayed
R the file and directory names should be
displayed during playback
X To display the album and artist name:
select MP3 or USB in the basic display by
sliding VÆ and

turning cVd the COMAND
controller and press W to confirm.
X Select Display Track Information and
press W to confirm.
Selecting a group The content of an audio DVD can be divided
into up to 9 groups. The availability and type
of group depends on the respective DVD.
A
group

can contain music in different sound
qualities (stereo and multichannel formats,
for example), or bonus tracks. Each group can contain up to 99 tracks.
If an audio DVD only contains one audio
format, the Group menu item(s) cannot be
selected.
X
Switch on audio DVD mode (Y page 424).
X Select DVD-A by sliding VÆ and turning
cVd the COMAND controller and press
W to confirm.
X Select Group by turning cVd and press
W to confirm.
The # dot indicates the group currently
selected.
X Select the desired group by turning cVd
and press W to confirm.
X To exit the menu: slide
XVY
the COMAND
controller or press the % back button.
Selecting an active partition (USB mass
storage devices only) You can select this function for USB mass
storage devices when the storage device is
partitioned. Up to 9 partitions (primary or
logical; FAT and FAT32) are supported.
X
Select MP3 in the basic display by sliding
VÆ and turning cVd the COMAND
controller and press W to confirm.
X Select Select Active Partition and
press W to confirm.
Playback options X
To select options: switch on audio CD/
DVD or MP3 mode ( Y page 424).
X Select CD, DVD-A or MP3
by sliding VÆ and
turning cVd the COMAND controller and
press W to confirm.
The options list appears. The # dot
indicates the option selected.
X Select an option by turning cVd and
press
W to confirm.
The option is switched on. For all options
except Normal Track Sequence, you will
see a corresponding display in the display/ 430
Audio
COMAND

selection window. See the example of the
display in audio CD mode
(Y
page 425).
The following options are available to you:
R Normal Track Sequence
The tracks are played in the normal order
(e.g. track 1, 2, 3, etc.).
In MP3

mode, the track order is determined
by the order in which the tracks are written
to the MP3 data carrier when it is created.
Alphabetical order is the most common.
Once all the tracks in a folder have been
played, the tracks in the next folder are
played.
R Random Medium
All the tracks on the medium are played in
random order (e.g. track 3, 8, 5 etc.).
R Random Track List (MP3 mode only)
You hear the tracks of the current track list
or the currently active folder (including all
subfolders) in random order.
i The Normal Track Sequence option is
automatically selected when you change
the disc you are currently listening to or
when you select a different medium. If an
option is selected, it remains selected after
COMAND is switched on or off.
Notes on MP3 mode General notes
Depending on the volume and format of the
MP3 data, the length of time required for
reading the data may increase.
Permissible data carriers
R
CD-R and CD-RW
R DVD-R and DVD-RW
R DVD+R and DVD+RW
R SD memory card
R USB storage device Permissible file systems
R
ISO 9660/Joliet standard for CDs
R UDF for audio and video DVDs
R FAT16 or FAT32 for SD memory cards and
USB storage media
Multisession CDs
For multisession

CDs, the content of the first
session determines how COMAND will
process the CD. COMAND plays only one
session and gives priority to the audio CD
session.
If possible, use COMAND to play only CDs
that have been written in one session.
File structure of a data carrier
When you create a disc with compressed
music files, the tracks can be organized in
folders. A folder may also contain subfolders.
The disc may contain no more than eight
directory levels. Files beyond the eighth level
will not be recognized by the system.
Track and file names
When you create a disc with compressed
music files, you can assign names to the
tracks and folders.
COMAND uses these names accordingly for
the display. Folders that contain data other
than MP3 or WMA tracks are not displayed by
COMAND.
If MP3 or WMA files are stored in the root
directory itself, the root directory will also be
treated as a folder. COMAND will then show
the name of the root directory as the folder
name.
You must observe the following when
assigning track names:
R track names must have at least one
character.
R track names must have the extension
"mp3" or "wma".
R there must be a dot between the track
name and the extension.
Example of a correct track name:
"Track1.mp3". Audio
431
COMAND Z

Permissible formats
COMAND supports the following formats:
R
MPEG1 Audio Layer 3 (MP3)
R Microsoft Windows
Media Audio V8 and V9
(WMA) without copy protection
Microsoft Windows Media Audio V2, V7, V8
and V9 (WMA)
R additional music files in AAC format with
the file extensions .aac, .mp4, .m4a
and .m4b, but not copy-protected iTunes
music files with the extension .m4p.
i If, in addition to MP3 files, there are other
music files in these audio formats stored on
the disc, the loading process may require a
longer time before the first track is played.
i The MP3 audio encoding method is under
license from Fraunhofer IIS (Institut
Integrierte Schaltungen – Institute for
Integrated Circuits) and Thomson.
Permissible bit and sampling rates
COMAND supports MP3 files of the following
types:
R fixed and variable bit rates from 32 kbit/s
to 320 kbit/s
R sampling rates of 8 kHz to 48 kHz
COMAND supports WMA files of the
following types:
R fixed bit rates from 5 kbit/s to 384 kbit/s
R sampling rates of 8 kHz to 48 kHz
COMAND does not support WMA files of the
following types:
R DRM (Digital Rights Management)
encrypted files
R variable bit rate
R WMA Pro
R 5.1 Surround
i Only use tracks with a bit rate of at least
128 kbit/s and a sampling rate of at least
44.1 kHz. Lower rates can cause a
noticeable deterioration in quality. This is
especially the case if you have activated a
surround sound function. Notes on copyright
MP3 or WMA tracks that you create or play
back are generally subject to copyright
protection in accordance with the applicable
international and national regulations.
In many countries, reproductions, even for
private use, are not permitted without the
prior consent of the copyright holder.
Make sure
that you know about the applicable
copyright regulations and that you comply
with these.
If you own these rights yourself, e.g. for your
own compositions and recordings, or if the
copyright holder has granted you permission,
these restrictions do not apply.
Notes on CDs/DVDs
! COMAND is designed to play discs that
comply with the EN 60908 standard.
Therefore, you can only use discs with a
maximum thickness of 1.3 mm.
If you insert thicker discs, e.g. those that
contain data on both sides (DVD on one
side and audio data on the other), they
cannot be ejected and can damage the
device.
Only use round discs with a diameter of
12 cm. Do not use discs with a diameter of
8 cm, even with an adapter.
Discs with copy protection are not
compatible with the audio CD standard and
therefore may not be able to be played by
COMAND.
Playback problems may occur when playing
copied discs. There is a wide range of data
carriers, disc-writing software and writers
available. This variety means that there is no
guarantee that the system will be able to play
discs that you have copied yourself.
There may be playback problems if you play
CDs that you have copied yourself with a
storage capacity of more than 700 MB. CDs
of this type do not conform to the currently
applicable standards.
i On many DVD audio discs, the last track
does not contain any music. If COMAND 432
Audio
COMAND

therefore switches to the next disc, it is
normal
system
behavior and does not mean
that there is a malfunction.
i COMAND is able to play back audio CDs
in multichannel audio format. Music search
Calling up a category list Category list
X
Switch on an audio source and call up the
basic display, e.g. MP3 mode
(Y page 425).
X Select Search by sliding VÆ and turning
cVd the COMAND controller and press
W to confirm.
The category list appears.
The categories are displayed according to the
data available. The categories Current
Tracklist, Folder, Playlists (if

available)
and Photos (if available) are already
assigned. The other available categories are
filled by the music search.
Selecting a category Starting a music search
Select music via categories (e.g. album,
artist) with the music search function. If you select a category, COMAND starts a
music
search

under the following conditions:
R the data carriers are inserted or connected
R the music tracks on these data carriers are
not yet in the COMAND music database.
COMAND reads music tracks from the
following data carriers:
R disc (audio CD/DVD/MP3)
R memory card
R MUSIC REGISTER
R USB storage device X
Select a category in the category list by
turning cVd the COMAND controller and
press W to confirm.
The Reading Data... message appears.
The search

may take some time, depending
on the number of tracks available.
The Track information is complete
message appears once the search is
completed. Playback then starts with the
previously active audio source.
X To cancel the music search: confirm
Cancel by pressing W.
Selecting artists
X Select Artists in the category list by
turning cVd the COMAND controller and
press W to confirm.
The available artists are displayed
alphabetically. Audio
433
COMAND Z