Page 212 of 506

211 Controls in detail
Audio system
Scan search
Starting scan search
Select desired waveband.
Press 
SC soft key.
SC will appear in the display. The 
radio briefly tunes in all receivable 
stations on the waveband selected.
Ending scan search
Press 
SC soft key or S or T.
The station last played will be se-
lected and 
SC disappears from the 
display.Station memory
You can store ten AM and ten FM stations 
in the memory.
Storing stations
Tune in desired station.
Press and hold desired station 
button1 to R until a brief 
signal tone is heard.
The frequency is stored on the se-
lected station button.
Calling up stations
Press desired station button1 
to R briefly.Autostore – automatic station memory
The Autostore memory function provides 
an additional memory level. The station 
memory for manually stored stations is not 
overwritten.
Calling up Autostore memory level and 
storing stations
Press 
AS soft key briefly.
The radio switches to the Autostore 
memory level. 
AS and 
SEARCH
 ap-
pear in the display and the radio 
finds the ten stations with the 
strongest signals. These stations 
are stored on the station buttons 
1 to R in order of signal 
strength. 
     
        
        Page 213 of 506

212 Controls in detailAudio system
Calling up stations
Press desired station button1 
to R.
Leaving the Autostore memory level
Press 
FM or 
AM
soft key briefly.
Interrupting radio mode
The radio mode is interrupted by an incom-
ing call on the telephone* (
page 229).
Mute on
Press U button.
The radio mode is interrupted and MUTED
 appears in the display.
Mute off
Press U button.
The radio mode is again active.Weather band
Press 
WB soft key.
The weather band station last received 
is tuned in.
Selecting a weather band station 
directly
Select desired weather band station 
with buttons 1 to 7.
If a station cannot be tuned in, a search 
is automatically started.
Search
Press S or T button to tune in 
the next receivable weather band sta-
tion.Scan search
Starting scan search
Press 
SC soft key.
SC will appear in the display. The ra-
dio briefly tunes in all receivable 
weather band stations.
Ending scan search
Press 
SC soft key or S or T.
The weather band station last 
played will be selected and 
SC dis-
appears from the display.
iIf no weather band station is received 
after three consecutive scans of the 
complete frequency range, then the 
scan stops at the channel with which it 
began and 
NO WB FOUND
 appears in the 
display.
If this happens, switch back to stan-
dard radio mode. 
     
        
        Page 214 of 506

213 Controls in detail
Audio system
Introduction to satellite radio* (USA only)
SIRIUS satellite radio provides 100 chan-
nels of digital-quality radio, among others 
music, sports, news, and entertainment, 
free of commercials. SIRIUS satellite radio 
uses a fleet of high-power satellites to 
broadcast 24 hours per day, coast to 
coast, in the contiguous U.S.
This diverse, satellite-delivered program-
ming is available for a monthly subscrip-
tion fee.
For more information and service 
availability call the SIRIUS Service Center 
(page 217), or contact 
www.siriusradio.comProgram categories
The channels are categorized. Categories 
allow you to tune to stations broadcasting 
a certain type of program (category mode) 
(
page 216).
iAdditional satellite radio equipment 
and a subscription to a satellite radio 
service provider are required for the 
satellite radio operation described 
here.
Contact an authorized Mercedes-Benz 
Center for details and availability for 
your vehicle.
Note that categories and channels 
shown in illustrations are dependent on 
programming content delivered by the 
service provider. Programming content 
is subject to change. Therefore, chan-
nels and categories shown in illustra-
tions and descriptions contained in this 
manual may differ from the channels 
and categories delivered by the service 
provider.
iSatellite radio service may be unavail-
able or interrupted from time to time 
for a variety of reasons, such as envi-
ronmental or topographic conditions 
and other things beyond the service 
provider’s or our control. Service might 
also not be available in certain places 
(e.g., in tunnels, parking garages, or 
within or next to buildings) or near oth-
er technologies. 
     
        
        Page 215 of 506

214 Controls in detailAudio systemCalling up the SAT main menu
Press 
SAT
 soft key.
SAT
 is displayed in the upper left-hand 
corner of the display.
Prior to activation of the satellite radio 
service (
page 214).
After activation of satellite radio ser-
vice (
page 214).
Prior to activation of the satellite radio 
service
The telephone number of the SIRIUS 
Service Center (888-539-7474) is dis-
played.
Press 
ESN
 soft key.
The twelve-digit electronic serial num-
ber (ESN) of the SAT tuner* installed in 
your vehicle is displayed. 
This information is required to call the 
SIRIUS Service Center for an activation re-
quest.
After activation of the satellite radio ser-
vice
The satellite radio main menu appears.
The radio station selected last is audible, 
provided it can be received.The first channel 001 is called up and the 
PTY system changes to All categories.
If no station can be received, 
ACQUIRING
 
appears in the display.
If the Satellite radio service is not 
activated, 
ACQUIRING
 will also appear in the 
radio display and 
NO SAT
 will appear in the 
multifunction display.
iCredit card information may also be re-
quired for your application.
The activation process takes approxi-
mately five to ten minutes after calling 
the SIRIUS Service Center.
iThe system will tune to a default sta-
tion if no station had been selected pre-
viously. 
     
        
        Page 216 of 506
215 Controls in detail
Audio system
Selecting a station
The following options are available:
Selecting a station using the selected 
category (
page 216).
Tuning via station presets 
(page 215).
Tuning via scan search (
page 216).
Tuning via manual channel input 
(page 215).
Tuning via the program category list 
(page 216).Tuning via station presets
Ten satellite radio station presets are avail-
able.
You can access the presets via number 
keys.
Accessing via number keys
Enter number of preset you wish to se-
lect, e.g. 1.
The radio plays the station stored un-
der this number and the PTY function 
changes to the category corresponding 
to the station.Tuning via manual channel input
Example: tuning in channel 16
Press *.
Input line appears in the main radio 
menu.
Use number keys to enter desired 
channel within eight seconds, 
e.g.1 6.
The system tunes to channel 16.
The station you have selected begins to 
play.iYou can only enter available channel 
numbers. 
     
        
        Page 217 of 506

216 Controls in detailAudio systemTuning via the program category list
The category list contains all currently re-
ceivable categories of programs. It is 
arranged alphabetically.
Selecting a category
Press 
PTY
 soft key.
The current PTY category of the sta-
tion is displayed.
Press 
<<<
 or 
>>>
 soft key.
This switches between the individu-
al categories.
When changing the category, the chan-
nel selected last in the new category 
becomes audible.The system will automatically switch to 
a station of the selected category if the 
currently selected station is not of the 
selected category. Otherwise, the cur-
rently selected station remains tuned.
Tuning a station within the selected 
category
The channels identified for the current-
ly selected category are arranged 
numerically. Only one entry is visible at 
a time.
Press S or T button briefly.
The next station within the category 
is started.
or
Press and hold S or T but-
ton for approx. three seconds until 
desired station has been reached.Tuning via scan search
Scan search is characterized as follows:
Scan search plays a channel for ap-
prox. eight seconds and then skips to 
the next channel within the current cat-
egory.
Scan search can be terminated manu-
ally.
Press 
SC soft key.
The search starts. 
SC appears in the 
display.
Press 
SC soft key again.
The search stops. 
     
        
        Page 218 of 506

217 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 standard display.
iThere are ten presets available.
An existing entry is overwritten in the 
memory list when a new entry is given. 
     
        
        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.