Page 221 of 498

219 Controls in detail
Audio 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 237)
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.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 222 of 498

220 Controls in detailAudio systemScan 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.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 225), or contact 
www.siriusradio.com
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. 
     
        
        Page 223 of 498

221 Controls in detail
Audio system
Program categories
The channels are categorized. Categories 
allow you to tune to stations broadcasting 
a certain type of program (category mode) 
(page 223).Calling 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 221).
After activation of satellite radio ser-
vice (
page 221).
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 
service
The satellite radio main menu appears.
The radio station selected last is audible, 
provided it can be received.
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.
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. 
     
        
        Page 224 of 498

222 Controls in detailAudio systemThe 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.Selecting a station
The following options are available:
Selecting a station using the selected 
category (
page 223),
Tuning via station presets 
(page 222),
Tuning via scan search (
page 224).
Tuning via manual channel input 
(page 222).
Tuning via the program category list 
(page 223).
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
iThe system will tune to a default sta-
tion if no station had been selected pre-
viously. 
     
        
        Page 225 of 498

223 Controls in detail
Audio system
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.
Tuning 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. 3 seconds until de-
sired station has been reached.
iYou can only enter available channel 
numbers. 
     
        
        Page 226 of 498

224 Controls in detailAudio systemTuning 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.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.
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 238 of 498

236 Controls in detailAudio system
Speed dial
If you have stored telephone numbers 
as speed dial numbers in your tele-
phone, you can also enter these with 
buttons 1 to R on the radio 
head unit.
Press desired button 1 to R 
briefly.
Press s button.
The call will be made.
Turbo dial
If you have stored telephone numbers 
as turbo dial numbers in your tele-
phone, you can also enter these with 
buttons 1 to R on the radio 
head unit.
Press desired button 1 to R 
until the call is made.Redial
If the number you have dialed is busy, you 
can again place calls to the last ten tele-
phone numbers dialed using the redial 
function.
Manual redial
Press s button.
The telephone number last dialed 
will appear in the display.
Select desired telephone number 
with button ‚ or ƒ.
The letter 
L and the number of the 
memory position appears in the 
left-hand corner of the display. The 
numbers are stored in the order of 
the calls received.
When you have selected a number, 
press s button.
The call will be made.
iIf you have activated the automatic re-
dial function on your telephone, the 
number of the person being called is 
automatically redialed after a short 
waiting period if there is a busy signal. 
Refer to the separate operating instruc-
tions for the mobile telephone. 
     
        
        Page 244 of 498

242 Controls in detailAudio system
Speed dial
If you have stored telephone numbers 
as speed dial numbers in your tele-
phone, you can also enter these with 
buttons 1 to R on the radio unit.
Press desired button 1 to R 
briefly.
Press s button.
The call will be made.
Turbo dial
If you have stored telephone numbers 
as turbo dial numbers in your tele-
phone, you can also enter these with 
buttons 1 to R on the radio unit.
Press desired button 1 to R 
until the call is made.Redial
If the number you have dialed is busy, you 
can again place calls to the last ten tele-
phone numbers dialed using the redial 
function.
Manual redial
Press s button.
The telephone number last dialed 
will appear in the display.
Select desired telephone number 
with button ‚ or ƒ.
The letter 
L and the number of the 
memory position appears in the 
left-hand corner of the display. The 
numbers are stored in the order of 
the calls received.
When you have selected a number, 
press s button.
The call will be made.
iIf you have activated the automatic re-
dial function on your mobile telephone, 
the number of the person being called 
is automatically redialed after a short 
waiting period if there is a busy signal. 
Refer to the separate operating instruc-
tions for the mobile telephone.