Page 211 of 474

210 Controls in detailAudio systemAutostore – 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
 
appear in the display and the radio 
finds the ten stations with the 
strongest signals. These stations 
are stored on the station 
buttons1 to R in order of 
signal strength.
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 
incoming 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. 
         
        
        
     
        
        Page 212 of 474

211 Controls in detail
Audio system
Search
Press S or T button to tune in 
the next receivable weather band 
station.Scan search
Starting scan search
Press 
SC soft key.
SC will appear in the display. The 
radio 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 
disappears 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 216), or contact 
www.siriusradio.com.
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 
standard radio mode. 
         
        
        
     
        
        Page 213 of 474

212 Controls in detailAudio system
Program categories
The channels are categorized. Categories 
allow you to tune to stations broadcasting 
a certain type of program (category mode) 
(page 214).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 212).
After activation of satellite radio 
service (page 213).
Prior to activation of the satellite radio 
service
The telephone number of the SIRIUS 
Service Center (888-539-7474) is 
displayed.
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, 
channels and categories shown in 
illustrations 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 
other technologies. 
         
        
        
     
        
        Page 214 of 474

213 Controls in detail
Audio system
Press 
ESN
 soft key.
The twelve-digit electronic serial 
number (ESN) of the SAT tuner* 
installed in your vehicle is displayed. 
This information is required to call the 
SIRIUS Service Center for an activation 
request.
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.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.Selecting a station
The following options are available:
Selecting a station using the selected 
category (
page 214).
Tuning via station presets 
(page 213).
Tuning via scan search (
page 215).
Tuning via manual channel input 
(page 214).
Tuning via the program category list 
(page 214).
Tuning via station presets
Ten satellite radio station presets are 
available.
You can access the presets via number 
keys.
iCredit card information may also be 
required for your application.
The activation process takes approxi-
mately 5 to 10 minutes after calling the 
SIRIUS Service Center.
iThe system will tune to a default 
station if no station had been selected 
previously. 
         
        
        
     
        
        Page 215 of 474
214 Controls in detailAudio systemAccessing via number keys
Enter number of preset you wish to 
select, e.g. 1.
The radio plays the station stored 
under 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 * button.
Input line appears in the main radio 
menu.
Use number keys to enter desired 
channel within 8 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 
receivable categories of programs. It is 
arranged alphabetically.
Selecting a category
Press 
PTY
 soft key.
The current PTY category of the 
station is displayed.
Press 
<<<
 or 
>>>
 soft key.
This switches between the 
individual categories.
When changing the category, the 
channel selected last in the new 
category becomes audible.
iYou can only enter available channel 
numbers. 
         
        
        
     
        
        Page 216 of 474

215 Controls in detail
Audio system
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 
currently selected station remains 
tuned.
Tuning a station within the selected 
category
The channels identified for the 
currently 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 
button for approx. 3 seconds until 
desired station has been reached.Tuning via scan search
Scan search is characterized as follows:
Scan search plays a channel for 
approx. 8 seconds and then skips to 
the next channel within the current cat-
egory.
Scan search can be terminated 
manually.
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) 
related to the current channel can be 
displayed.
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.
iIf a button is not pressed within 
4 seconds, the radio will return to the 
standard display. 
         
        
        
     
        
        Page 217 of 474

216 Controls in detailAudio systemStoring 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 selected 
station button.
The radio saves the current station at 
the memory preset selected. The 
memory preset selected appears in the 
status line, e.g. S3.Calling up the ESN information menu
Press 
INF
 soft key.
Press 
ESN
 soft key.
The twelve-digit electronic serial 
number (ESN) of the SAT tuner* 
installed in your vehicle is displayed.
Press 
RET
 soft key to exit the menu.
CD mode
Safety precautions
iThere are ten presets available.
An existing entry is overwritten in the 
memory list when a new entry is given.
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. 
         
        
        
     
        
        Page 218 of 474

217 Controls in detail
Audio system
General notes
The system may not be able to play audio 
CDs with copy protection.
Playing copied CDs may cause 
malfunctions during playback.Do not use CDs with an 8 cm diameter, not 
even with a CD adapter. Attempting to play 
CDs with an 8 cm diameter or playing such 
CDs with an adapter may cause damage to 
the CD drive. Such damage 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.
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 
operate 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) 
every second.
!If you affix stickers to the CDs, they can 
become warped due to the heat that 
develops in the CD drive or 
CD changer*.
In certain situations, the CDs can then 
no longer be ejected and cause 
damage 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 
correspond to the EN 60908 standard. 
You can therefore only use CDs with a 
maximum 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.