MERCEDES-BENZ SLK55AMG 2008 R171 Owner's Manual

210 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
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.

211 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 appli-
cable international and national regula-
tions.
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 MP3 CD on the
CD changer* as you would any standard
audio CD. All of the functions described for
the CD changer also apply for the playback
of MP3 CDs. Keep in mind that the single
CD player in the audio system unit is not
able to read MP3 CDs.
The first 99 tracks on the CD, including
tracks in subdirectories, are recognized
and played. Any additional tracks will not
be played.
MPEG1
Audio Layer344.1 KHz, 48 KHz,
32 KHZ
MPEG2
Audio Layer322.5 KHz, 24 KHz,
16 KHz
MPEG2.5
Audio Layer311.025 KHz,
12 KHz, 8 KHz
WMA32 KHz, 44.1 KHz,
48 KHz
iOnly use MP3 tracks with a bit rate of
128 kBit/s or higher and with the specified
sampling 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.

212 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 gbutton.
The system ejects the CD.
Remove CD0
will appear in the display.
Remove CD from slot.
With the CD removed,
NO CD will appear
in the display.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.
The CD changer is located in the glove box.
1CD loading slot
2Magazine slot button
A magazine is integrated into the CD
changer as a fixed element. It holds a
maximum of six CDs.
The CD changer features six magazine slot
buttons2 for controlling the loading
procedure.
!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
cannot be read,
WRONG CD0 will appear in the
display.
iIf you do not take the CD out of the CD slot
within approximately 15 seconds, the system
automatically pulls the CD back in and plays it.
If a CD is pulled back in, press gbutton, the
CD will then be ejected.

213 Controls in detail
Audio system
A light-emitting diode in the buttons shows
the status of the corresponding magazine
slot.
CD loading slot1 is above buttons2
and is used to load CDs.Loading the CD magazine
Loading single CDs
Open the glove box (page 253).
1CD loading slot
2Magazine slot button
Briefly press button2 for the empty
magazine slot that you would like to
use.
The light-emitting diode in the maga-
zine slot button flashes in green.
INSERT CD appears in the display along
with the slot number.
The flashing light indicates that the CD
changer is ready to receive a CD.
Insert an audio CD into CD loading
slot1 within 5 seconds, label side up.
The CD is pulled in and played.
Close the glove box.
LEDs
no LED is litMagazine slot is
empty.
green LED flashesCD can be loaded.
red LED is litMagazine slot is in
use.
red LED flashesCD is being ejected.
iIf a CD has been inserted incorrectly or
cannot be read,
WRONG CD0 will appear in the
display.
Loading one or more CDs interrupts the
CD playback.

214 Controls in detail
Audio system
Loading several CDs
Open the glove box.
Press button2 of an empty magazine
slot for more than 2 seconds.
The light-emitting diodes in all the mag-
azine slot buttons light up several
times in green, and
ALL LOAD appears
in the display.
Wait until the light-emitting diode for
the first magazine slot flashes in green.
The flashing light indicates that the CD
changer is ready to receive a CD.
Insert an audio CD into CD loading
slot1 within 5 seconds, label side up.
The CD is pulled in and the light-emit-
ting diode in the magazine slot button
lights up in red. The magazine slot is
loaded.
The light-emitting diode in the next
available magazine slot button flashes
in green. The CD changer is ready to re-
ceive the next CD.
Repeat the previous step until all six
magazine slots are loaded.
Once all magazine slots are loaded, the
CD in the sixth magazine slot is played.
Close the glove box.Ejecting CDs
Ejecting single CDs
Open the glove box.
Briefly press desired magazine slot but-
ton.
The light-emitting diode in the maga-
zine slot button flashes in red. The cor-
responding CD is ejected.
EJECTING CD
appears in the display along with the
magazine slot number.
Remove CD from CD loading slot within
15 seconds.
If after removing a single CD no other
CDs remain loaded in the magazine,
MAG. EMPTY appears in the display.
iIf, for example, you only want to load maga-
zine slots 1 - 4 instead of all six, simply do not in-
sert a fifth CD into the CD loading slot. The CD
changer will first try to load a CD but will then
cancel the procedure, after which the radio will
play the fourth CD.
iThe CD playback is interrupted while one or
more CDs are being ejected.

215 Controls in detail
Audio system
Close the glove box.Ejecting all loaded CDs
Open the glove box.
Press the button of a loaded magazine
slot for more than 2 seconds.
The light-emitting diodes in all maga-
zine slot buttons light up several times
in red, and
ALL EJECT appears in the
display.
The CD changer ejects the CDs one
after another.
The light-emitting diode for the maga-
zine slot being emptied flashes in red.
Take corresponding CD from CD load-
ing slot within 15 seconds.
The ejection procedure is finished once
you have removed all CDs from the
CD loading slot or if the CD changer
cancels the procedure.
With all CDs removed from the maga-
zine,
MAG. EMPTY appears in the
display.
Close the glove box.
iIf you do not take the CD from the CD load-
ing slot within 15 seconds, the CD changer will
automatically pull the CD back in. The system
will then play the CD.
If you are listening to a CD while ejecting another
CD from the changer: The Audio system stops
playing the CD while another CD is being eject-
ed. Once the CD has been ejected, the Audio
system will continue playing where it left off.iIf you do not take the CD from the CD load-
ing slot within 15 seconds, the CD changer will
automatically pull the CD back in. The system
will then play the CD.
With all CDs ejected, press the bbutton to
switch back to the radio mode.

216 Controls in detail
Audio system
Playing CDs
Single CD player in the audio unit
Pressi button.
CD0 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
number appear in the upper left-hand
corner 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*:
selecting CDs

Direct track entry

Track skip forward/reverse

Fast forward/reverse

Scan

Random tracks

Repeat track
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
selected CD appears next to
CD in the
display, and the number of the
currently played track appears next
to
TRACK.
iIf there is no CD in the selected magazine
slot,
NO CD appears in the display with the
corresponding slot number.

217 Controls in detail
Audio system
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
numbers.Skipping tracks forward/backward

Skipping tracks forward
PressHbutton briefly.
The next track will be played.

Skipping tracks backward
PressGbutton briefly.
If the track has been playing for
more than 10 seconds, the unit
skips back to the beginning of the
track currently playing. If less than
10 seconds have been played, the
unit skips back to the beginning of
the previous track.
Pressing theGorHbutton
repeatedly will result in multiple tracks
being skipped.Fast forward/reverse

Fast forward
Press and holdHbutton until
desired point has been reached.

Reverse
Press and holdGbutton 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
8 seconds in ascending order.

Ending scan
Press SC soft key orGorH.
iThe track number and the relative time of
the track is shown in the display during the
search.

218 Controls in detail
Audio system
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 randomly selected track is
played.

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

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

Switching off repeat
Press RPT soft key again.Pause function
The CD changer mode is interrupted by an
incoming call on the telephone*
(
page 224).

Switching on pause function
PressFbutton.
The CD changer mode is
interrupted and
PAUSE appears in
the display.

Switching off pause function
PressFbutton.
The CD changer mode is active
again.
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.

219 Controls in detail
Audio system
Track and time display
Press T soft key.
The number of the track being played
and the elapsed playing time appear in
the display.
Press T soft key again.
The total number of tracks and the total
playing time of the CD appear in the
display.
Press T soft key.
The standard CD playback menu
appears in the display.
GSM network phones
Using your Mercedes-Benz specified
mobile telephone*, a number of functions
and operating steps can be performed and
displayed in the audio system display.
Warning!G
A driver’s attention to the road must always
be his/her primary focus when driving.
For your safety and the safety of others, we
recommend that you pull over to a safe
location and stop before placing or taking a
telephone call. If you choose to use the
telephone
1 while driving, please use the
hands-free device and only use the tele-
phone when weather, road, and traffic
conditions permit.
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a
vehicle.
Bear in mind that at a speed of just
30 mph (approximately 50 km/h), your
vehicle is covering a distance of
44 feet (approximately 14 m) every second.
1Observe all legal requirements.