Page 146 of 498

144 Controls in detailControl systemOperate the CD player
Turn on the radio and select the
CD player (
page 227). Vehicles with
COMAND*: Refer to separate
operating instructions.
Press buttonè orÿ repeatedly
until the settings for the CD currently
being played appear in the multifunc-
tion display.
1Current CD (for CD changer*)
2Current track
Press buttonk orj repeatedly
until the desired track is selected.
NAV* menu
The
Nav
menu contains the functions
needed to operate your navigation system.
Press buttonè orÿ repeatedly
until the message
Nav
appears in the
multifunction display.
If the navigation system is switched off,
the message
Nav off
appears in the
multifunction display.
If the navigation system is on, different
messages, depending on the current
state of the navigation system, appear
in the multifunction display.
Please refer to the COMAND* manual for
instructions on how to activate the route
guidance system*.
iFor more information on satellite radio
operation, see “Introduction to satellite
radio* (USA only)” (
page 220).
Vehicles with COMAND*: Refer to
separate operating instructions.
iTo select a CD from the magazine,
press a number on the audio system or
the COMAND* system key pad located
in the center dashboard.
Page 209 of 498

207 Controls in detail
Audio system
Audio system
Audio and telephone, operation
These instructions are intended to help
you become familiar with your
Mercedes-Benz audio system. They con-
tain useful tips and a detailed description
of the user functions.
Operating safety
Warning!
G
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a
standstill and operate the system only when
road and traffic conditions permit. Always
pay full attention to traffic conditions first
before operating system controls while
driving.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car is
covering a distance of 44 feet
(approximately 14 m) every second.
Warning!
G
Any alterations made to electronic
components can cause malfunctions.
The radio, amplifier, CD changer*, satellite
radio*, telephone* and voice control
system* are interconnected. When one of
the components is not operational or has
not been removed/replaced properly, the
function of other components may be
impaired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out
by an authorized Mercedes-Benz Center.
Page 211 of 498
209 Controls in detail
Audio system
Item
Page
1
CD changer mode selector
AUX mode selector
225
215
2
Single CD mode selector
227
3
Radio mode selector
4
Mute function (radio)
219
Pause (CD)
231
5
Volume distribution
213
6
Sound settings
211
7
Display
8
Alphanumeric keypad
Item
Page
9
Speed dialing memory
(telephone) in descending
order
a
Accepting a call
(telephone)
237
b
Telephone mode selector
232
c
Speed dialing memory
(telephone) in ascending
order
233
d
Terminating a call
(telephone)
237
e
CD slot
f
CD ejection
227
Item
Page
g
Soft keys
210
h
Volume
211
j
Switching on/off
210
k
Manual tuning / seek
tuning (radio)
217
Track search, reverse (CD)
230
l
Manual tuning / seek
tuning (radio)
217
Track search,
fast forward (CD)
230
Page 227 of 498

225 Controls in detail
Audio system
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.
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.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 service work
which may be necessary performed only by
qualified personnel.
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.
Page 228 of 498

226 Controls in detailAudio system
D o n o t u s e C D s w i t h a n e i g h t c m d i a m e t e r ,
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 TEMP
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 and the CD changer*
play audio CDs.Tips on handling CDs
Handle CDs carefully to prevent inter-
ference 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 sun-
light.
!If you affix stickers to the CDs, they can
become warped due to the heat that
develops in the CD drive or CD chang-
er.
In certain situations, the CDs can then
no longer be ejected and cause dam-
age to the drive. Such damage is not
covered by the Mercedes-Benz Limited
Warranty.!Your CD drive or CD changer has been
designed to play CDs which corre-
spond to the EN 60908 standard. You
can therefore only use CDs with a max-
imum 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.
Page 229 of 498

227 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.
!If a CD is already loaded, it must be
ejected before inserting a new CD. In-
serting a second CD in the slot with an-
other 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 approx. 15 seconds, the sys-
tem automatically pulls the CD back in
and plays it.
If a CD is pulled back in, press
EJECTbutton for five seconds; the CD
will then be ejected.
iThe CD changer* may not be able to
play audio CDs with copy protection.
Page 230 of 498
228 Controls in detailAudio system1CD
2CD changer
3CD tray
4CD magazine
Remove magazine4 and pull
CD tray3 fully out.
Place CD1 i n r e c e s s o f t r a y , l a b e l s i d e
up.
Push tray into magazine in direction of
arrow.
Pus h ma ga zine i nt o CD c hang er*2 in
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.
iCDs which have been inserted improp-
erly or are unreadable will not be
played.
Page 231 of 498
229 Controls in detail
Audio system
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 trackSelecting 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.iIf there is no CD in the selected maga-
zine slot,
NO CD
appears in the display
with the corresponding slot number.