Page 208 of 474

207 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.
PressGorHbutton briefly.
The next station within the category 
is started.
or
Press and hold 
GorHbutton for approxi-
mately 3 seconds until desired 
station has been reached.Tuning via scan search
Scan search is characterized as follows:
Scan search plays a channel for 
approximately 8 seconds and then 
skips to the next channel within the 
current category.
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. 
     
        
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208 Controls in detail
Audio system
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 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 213 of 474

212 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 gbutton.
The system ejects the CD. 
Remove CD0 
will appear in the display.
Remove CD from slot.
With the CD removed, 
NO CD will appear 
in the display.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.
The CD changer is located in the glove box.
1CD loading slot
2Magazine slot button
A magazine is integrated into the CD 
changer as a fixed element. It holds a 
maximum of six CDs.
The CD changer features six magazine slot 
buttons2 for controlling the loading 
procedure.
!If a CD is already loaded, it must be ejected 
before inserting a new CD. Inserting a second 
CD in the slot with another 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 approximately 15 seconds, the system 
automatically pulls the CD back in and plays it.
If a CD is pulled back in, press gbutton, the 
CD will then be ejected. 
     
        
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217 Controls in detail
Audio system
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 
numbers.Skipping tracks forward/backward
Skipping tracks forward
PressHbutton briefly.
The next track will be played.
Skipping tracks backward
PressGbutton briefly.
If the track has been playing for 
more than 10 seconds, the unit 
skips back to the beginning of the 
track currently playing. If less than 
10 seconds have been played, the 
unit skips back to the beginning of 
the previous track.
Pressing theGorHbutton 
repeatedly will result in multiple tracks 
being skipped.Fast forward/reverse
Fast forward
Press and holdHbutton until 
desired point has been reached.
Reverse
Press and holdGbutton until 
desired point has been reached.
Scan
Starting scan
Press SC soft key.
SC will appear in the display.
Each track on the current CD will 
be played for approximately 
8 seconds in ascending order.
Ending scan
Press SC soft key orGorH.
iThe track number and the relative time of 
the track is shown in the display during the 
search. 
     
        
        Page 219 of 474
218 Controls in detail
Audio system
Random play
The random function (RDM) plays the 
tracks of the current CD in random order.
Switching on random
Press RDM soft key.
RDM appears in the display. 
A randomly selected track is 
played.
Switching off random
Press RDM soft key again.Repeat
The track being played is repeated until the 
repeat function (RPT) is switched off.
Switching on repeat
Press RPT soft key.
RPT appears in the display.
Switching off repeat
Press RPT soft key again.Pause function
The CD changer mode is interrupted by an 
incoming call on the telephone* 
(
page 224).
Switching on pause function
PressFbutton.
The CD changer mode is 
interrupted and 
PAUSE appears in 
the display.
Switching off pause function
PressFbutton.
The CD changer mode is active 
again.
iWhen you start the RDM function, the RPT 
function is automatically switched off.iWhen you start the RPT function, the RDM 
function is automatically switched off. 
     
        
        Page 220 of 474

219 Controls in detail
Audio system
Track and time display
Press T soft key.
The number of the track being played 
and the elapsed playing time appear in 
the display.
Press T soft key again.
The total number of tracks and the total 
playing time of the CD appear in the 
display.
Press T soft key.
The standard CD playback menu 
appears in the display.
GSM network phones
Using your Mercedes-Benz specified 
mobile telephone*, a number of functions 
and operating steps can be performed and 
displayed in the audio system display.
Warning!G
A driver’s attention to the road must always 
be his/her primary focus when driving. 
For your safety and the safety of others, we 
recommend that you pull over to a safe 
location and stop before placing or taking a 
telephone call. If you choose to use the 
telephone
1 while driving, please use the 
hands-free device and only use the tele-
phone when weather, road, and traffic 
conditions permit.
Some jurisdictions prohibit the driver from 
using a cellular telephone while driving a 
vehicle.
Bear in mind that at a speed of just 
30 mph (approximately 50 km/h), your 
vehicle is covering a distance of 
44 feet (approximately 14 m) every second.
1Observe all legal requirements. 
     
        
        Page 221 of 474

220 Controls in detail
Audio system
Further operating instructions not covered 
here can be found in the operating instruc-
tions for the multifunction steering wheel 
and the mobile telephone*.
If your audio system is set up for telephone 
operation, the tsymbol will appear in 
the display.
When you insert your Mercedes-Benz 
specified mobile telephone* into the 
telephone cradle, you will be prompted to 
enter your PIN for 30 seconds 
(
page 220). This display disappears 
when you press any button.
When your mobile telephone* is inserted 
into the telephone cradle, you will see the 
reception strength in the upper right-hand 
corner of the display.Switching on the telephone
Switching on the telephone
Pressh button.
If the telephone was previously 
switched off, 
PROCESSING appears in 
the display and you will then be 
prompted to enter your PIN.
Switching off the telephone
Pressh button for approximately 
3 seconds.
PROCESSING appears in the display until 
the telephone is off. Afterward, 
PHONE OFF appears in the display.PIN entry
Enter PIN number using buttons 1 
to R.
If necessary, correct number entered 
with the 
CLR soft key. Press soft key 
briefly to delete the last digit entered; 
press soft key and hold to delete the 
complete number.
Press OK soft key after entering correct 
PIN.
READY or ROAMING will appear in the 
display.
iIf the PIN is entered incorrectly three times, 
NEED PUK will appear in the display. Enter PUK 
via your telephone. Please refer to the separate 
telephone operating instructions for more 
information. 
     
        
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221 Controls in detail
Audio system
Adjusting the volume
Turn rotary control of E button 
during a telephone call.
The volume will increase or decrease 
depending on the direction turned.
Adjusting sound
Adjust sound during a telephone call. 
Sound adjustment see “Adjusting 
sound functions” (
page 197).Placing a call
Entering a telephone number and 
starting the dialing process
Enter desired telephone number using 
buttons 1 to R.
The number can have up to 32 digits, 
but only twelve of these are visible in 
the display.
If necessary, correct number entered 
with the 
CLR soft key. Press soft key 
briefly to delete the last digit entered; 
press soft key and hold to delete the 
complete number.
After correct telephone number has 
been entered, press s button.
Phone book
The numbers stored in the phone book of 
the telephone can be called up either by 
name or number.
In addition, incoming calls are stored in the 
phone book.
iThe volume can be adjusted separately for 
telephone mode and audio mode.
iIf the telephone number has been saved 
together with a name in the telephone book, the 
name will appear in the display.
iThis is only possible, however, when the call 
information transmitted includes the number of 
the person calling. If the telephone number is not 
transmitted, 
NO NUMBER will be stored in the 
phone book.