2007 MERCEDES-BENZ CLK550 COUPE audio

222 Controls in detail
Audio system
Obtaining additional text information
Additional text information (artist, title) re-
lated to the current channel can be dis-
played.
Press INF soft key.
The title being played is displayed.
Press INF soft key again.
The name of the artist performing the
title being played is displayed.Storing stations
Tune in desired station.
Press and hold desired station button
1 to R until a brief signal tone is
heard.
The frequency is stored on the selected
station button.
The radio saves the current station at
the memory preset selected. The mem-
ory preset selected appears in the sta-
tus line, e.g. S3.Calling up the ESN information menu
Press INF soft key.
Press ESN soft key.
The twelve-digit electronic serial num-
ber (ESN) of the SAT tuner* installed in
your vehicle is displayed.
Press RET soft key to exit the menu.
iIf a button is not pressed within
four seconds, the radio will return to the stan-
dard display.
iThere are ten presets available.
An existing entry is overwritten in the memory
list when a new entry is given.

223 Controls in detail
Audio system
CD mode
Safety precautions
General notes
The system may not be able to play audio
CDs with copy protection.
Playing copied CDs may cause
malfunctions during playback.Do not use CDs with an eight cm diameter,
not even with a CD adapter. Attempting to
play CDs with an eight cm diameter or
playing such CDs with an adapter may
cause damage to the CD drive. Such dam-
age is not covered by the Mercedes-Benz
Limited Warranty.
Should excessively high or low tempera-
tures occur while in CD changer mode*,
CD ERROR will appear in the display, and the
CD will be muted until the temperature has
reached an acceptable level for the system
to continue operation.
The single CD player play audio CDs, the
CD changer* can play audio CDs as well as
CDs with MP3 files.
Warning!G
The single CD player and the CD changer*
are Class 1 laser products. There is a danger
of invisible laser radiation if the housing is
opened or damaged.
Do not open the housing. The single CD
player and the CD changer* do not contain
any parts that can be serviced by the user.
For safety reasons, have any necessary ser-
vice work performed only by qualified per-
sonnel.
Warning!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 if permitted by
road, weather and traffic conditions.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car covers a
distance of 44 feet (approximately 14 m) ev-
ery second.
!If you affix stickers to the CDs, they can be-
come warped due to the heat that develops in
the CD drive or CD changer.
In certain situations, the CDs can then no longer
be ejected and cause damage to the drive. Such
damage is not covered by the Mercedes-Benz
Limited Warranty.
!Your CD drive or CD changer* has been de-
signed to play CDs which correspond to the
EN 60908 standard. You can therefore only use
CDs with a maximum thickness of 1.3 mm.
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.

224 Controls in detail
Audio system
Tips on handling CDs

Handle CDs carefully to prevent
interference during playback.

Avoid scratches, fingerprints and dust
on the CDs.

Do not write on CDs or apply any labels
or other material to them.

Clean CDs from time to time with a
commercially available cleaning cloth.
Never wipe the CD in a circular motion;
instead, wipe it in a straight line start-
ing in the center and moving outward.
Do not use solvents, anti-static sprays,
etc. for cleaning.

Replace the CD in its case after use.

Protect CDs from heat and direct
sunlight.MP3 notes
The CD changer* can play audio CDs as
well as CDs with MP3 files.
Information on MP3 data carriersCompatible MP3 data carriers
The CD changer can read the following
data carriers in MP3 mode:

CD-DA

CD-R

CD-RW
Compatible file systems and compres-
sion methods
Use Romeo or Joliet. Depending on file
format used, up to 128 characters are
possible
The following compression methods are
compatible:

MP3

WMA

WAV
iCD media, CD burning software and
CD writers are available in great variety. Due to
this variety, it cannot be guaranteed that the CD
changer will be able to play every user-written
CD.
The burning process can lead to data errors and
aging of the medium may result in data loss.
Therefore, the CD changer may be restricted in
its ability to play MP3 data carriers; it may play
them with reduced sound quality, or it may not
be able to play them at all.
Problems may be encountered during playback
of user-written CDs with a storage capacity of
more than 700 MB. These CDs do not meet valid
standards as of this printing.

225 Controls in detail
Audio system
Compatible bit and sampling rates
Fixed and variable bit rates of up to
320 kBit/s are possible.
The following table lists possible sampling
rates:Information on copyright
The music tracks that you create for use in
MP3 mode or that you play in MP3 mode
are subject to copyright laws under
applicable international and national
regulations.
In many countries, the reproduction of
copyrighted materials is not permitted,
even if only for personal use, without the
express prior consent of the copyright
holder.
Please check the current copyright laws
for your country and comply with them.
These restrictions do not apply, for exam-
ple, to your own compositions and record-
ings, or for recordings for which
authorization has been obtained from the
copyright holder.MP3 playback
You can play an CD with MP3 files on the
CD changer* as you would play any stan-
dard audio CD. All of the functions de-
scribed for the CD changer also apply for
the playback of CDs with MP3 files. Keep
in mind that the single CD player in the au-
dio system unit is not able to read CDs with
MP3 files.
The first 99 tracks on the CD, including
tracks in subdirectories, are recognized
and played. Any additional tracks will not
be played.
MPEG1
Audio Layer 344.1 kHz, 48 kHz,
32 kHz
MPEG2
Audio Layer 322.5 kHz, 24 kHz,
16 kHz
MPEG 2.5
Audio Layer 311.025 kHz,
12 kHz, 8 kHz
WMA32 kHz, 44.1 kHz,
48 kHz
iOnly use MP3 tracks with a bite rate of
128 kBit/s or higher and with the specified sam-
pling rates.
The use of rates other than those specified may
lead to noticeably inferior sound quality.
iDue to the branched data structure, play-
back of the first track may be delayed slightly.

226 Controls in detail
Audio system
Operating the single CD player in the
audio system unit
Loading a CD
The single CD player in the audio system
unit has capacity for one CD. The CD slot
for loading the drive is located underneath
the soft keys.
Make sure the system is switched on.
Insert CD into CD slot. The label side of
the CD must face upwards.
The system automatically pulls the CD
into the CD slot. The audio CD begins
to play.Ejecting a CD
Make sure the system is switched on.
Press EJECTbutton.
The system ejects the CD.
NO CD will
appear in the display.
Remove CD from slot.
Operational readiness of CD changer*
If a CD changer has been installed in the
vehicle, it can be operated from the front
control panel of the audio system. A load-
ed magazine must be installed to play CDs.
The CD changer is located in the glove box.Loading/unloading the CD magazine
Slide changer door to the right and
press gbutton.
Magazine will be ejected.
1CD
2CD changer
3CD tray
4CD magazine
Remove magazine4 and pull
CD tray3 fully out.
Place CD1 in recess of tray, label side
up.
iKeep in mind that the single CD player in the
audio system unit is not able to play CDs with
MP3 files.
!If a CD is already loaded, it must be ejected
before inserting a new CD. Inserting a second
CD in the slot with another CD still loaded will
cause damage to the CD drive not covered by the
Mercedes-Benz Limited Warranty.
iIf a CD has been inserted incorrectly or can-
not be read,
WRONG CD ERROR will appear in the
display.
iIf you do not take the CD out of the CD slot
within approximately 15 seconds, the system au-
tomatically pulls the CD back in and plays it.
If a CD is pulled back in, press the EJECTbutton
for five seconds; the CD will then be ejected.
iThe CD changer* may not be able to play au-
dio CDs with copy protection.

227 Controls in detail
Audio system
Push tray into magazine in the direction
of arrow.
Push magazine into CD changer*2 in
the direction of arrow and close sliding
door.Playing CDs
Single CD player in the audio unit
Pressi button.
CD 0 will appear in the upper left-hand
corner of the display.
The CD will resume playback at the point
where it was switched off.
CD changer*
Press Q button.
CD and the selected magazine slot num-
ber appear in the upper left-hand cor-
ner of the display.
If you have not removed a CD since the last
time the CD audio source was activated,
the last CD listened to will begin to play at
the point where it was switched off.
After the last track on a CD has finished,
the next CD is automatically played.Playing tracks
You have the following options:

Audio system with CD changer*: se-
lecting CDs

Direct track entry

Track skip forward/reverse

Fast forward/reverse

Scan

Random tracks

Repeat track
iImproperly inserted or unreadable CDs will
not be played.

228 Controls in detail
Audio system
Selecting CDs in the audio unit with CD
changer*
You can select from among the
inserted CDs with buttons
Rto6.
R = CD player in the audio unit
1to6 = CDs in the
CD changer*
The magazine slot number of the se-
lected CD appears next to
CD in the dis-
play, and the number of the currently
played track appears next to
TRACK.Direct track entry
You can make a direct selection from
among the tracks on a CD.
Press * button.
Enter track number using buttons 1
to R.
The number of the track being played
appears next to
TRACK in the display.
You can only enter available track num-
bers.Skipping tracks forward/backward

Skipping tracks forward
Press S button briefly.
The next track will be played.

Skipping tracks backward
Press T button briefly.
If the track has been playing for
more than ten seconds, the unit
skips back to the beginning of the
track currently playing. If less than
ten seconds have been played, the
unit skips back to the beginning of
the previous track.
Pressing the T or S button repeat-
edly will result in multiple tracks being
skipped.
iIf there is no CD in the selected magazine
slot,
NO CD appears in the display with the cor-
responding slot number.

229 Controls in detail
Audio system
Fast forward/reverse

Fast forward
Press and hold S button until
desired point has been reached.

Reverse
Press and hold T button until
desired point has been reached.
Scan

Starting scan
Press SC soft key.
SC will appear in the display.
Each track on the current CD will be
played for approximately eight sec-
onds in ascending order.

Ending scan
Press SC soft key or T or S.Random play
The random function (RDM) plays the
tracks of the current CD in random order.

Switching on random
Press RDM soft key.
RDM appears in the display. A ran-
domly selected track is played.

Switching off random
Press RDM soft key again.Repeat
The track being played is repeated until the
repeat function is switched off.

Switching on repeat
Press RPT soft key.
RPT appears in the display.

Switching off repeat
Press RPT soft key again.
iThe track number and the relative time of
the track is shown in the display during the
search.
iWhen you start the RDM function, the RPT
function is automatically switched off.iWhen you start the RPT function, the RDM
function is automatically switched off.