Page 141 of 506

140 Controls in detailControl systemSelect satellite radio station* 
(USA only)
The satellite radio is treated as a radio 
application.
Select satellite radio with the 
corresponding soft key (SAT) in the 
radio menu.
1SAT mode and preset number
2Setting for station selection using 
memory
3Channel name or number
Press buttonk orj repeatedly 
until the desired channel is found.Operate the CD player
Turn on the radio and select the 
CD player (
page 218). 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.
iFor more information on satellite radio 
operation, see “Introduction to satellite 
radio* (USA only)” (
page 213). 
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 202 of 506

201 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
Sound system*
Your vehicle is equipped with a sound sys-
tem. The subwoofer is located between the 
rear seats.
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*, and telephone* are interconnected. 
When one of the components is not opera-
tional 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.
!Make sure no objects fall into the open-
ings of the subwoofer between the rear 
seats.
If necessary, contact an authorized 
Mercedes-Benz Center to remove any 
objects which may have fallen into the 
openings. 
     
        
        Page 204 of 506
203 Controls in detail
Audio system
Item
Page
1
CD changer mode selector
AUX mode selector
218
208
2
Single CD mode selector 
219
3
Radio mode selector
4
Mute function (radio)
212
Pause (CD)
223
5
Volume distribution
207
6
Sound settings
205
7
Display
8
Alphanumeric keypad
Item
Page
9
Speed dialing memory 
(telephone) in descending 
order
a
Accepting a call
(telephone)
229
b
Telephone mode selector
224
c
Speed dialing memory 
(telephone) in ascending 
order
226
d
Terminating a call
(telephone)
230
e
CD slot
f
CD ejection
220
Item
Page
g
Soft keys
204
h
Volume
205
j
Switching on/off
204
k
Manual tuning / seek 
tuning (radio)
210
Track search, reverse (CD)
223
l
Manual tuning / seek 
tuning (radio)
210
Track search,
fast forward (CD)
223 
     
        
        Page 219 of 506

218 Controls in detailAudio systemCD 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.
!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 220 of 506

219 Controls in detail
Audio system
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 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.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.!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.  
     
        
        Page 221 of 506

220 Controls in detailAudio systemEjecting 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.
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 222 of 506

221 Controls in detail
Audio system
Push tray into magazine in direction of 
arrow.
Push magazine into CD changer2 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.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
iCDs which have been inserted improp-
erly or are unreadable will not be 
played. 
     
        
        Page 223 of 506

222 Controls in detailAudio systemSelecting 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 maga-
zine slot, 
NO CD
 appears in the display 
with the corresponding slot number.