2004 MERCEDES-BENZ C320S buttons

181 Controls in detail
Audio system
Scan tuning

Starting scan tuning
Select desired frequency band.

Press2 button.SC will appear on the display. The
radio briefly tunes in all receivable
stations on the band selected. The
first scan cycle will tune in only the
stations with a strong signal. The
second scan cycle will tune in every
receivable station.


Ending scan tuning
Press2 button ord, c,
f or ebutton.SC disappears from the display.Manual station memory (Presets)
You can store ten AM and ten FM stations.


Storing stations
Tune in the desired station.

Press and hold desired station
button4 toM until a brief
signal tone is heard.
The frequency is stored on the
selected station button.
The frequency band and station
button number are shown in the up-
per left-hand corner of the display.


Retrieving a station from memory
Press desired station button4
toM.Automatic station memory (Autostore)
The Autostore memory function provides
an additional memory level. The station
memory for manually stored stations is not
overwritten.


Calling up Autostore memory level
Briefly press the
AS key.
AS is highlighted in the display.
The radio finds the ten stations with
the strongest signals. These
stations are stored on the station
buttons4 toM in order of
signal strength.


Retrieving a station from memory
Press desired station button4
toM.


Leaving the Autostore memory level
Press the
AS key.
The highlighted
AS in the display
disappears.

182 Controls in detailAudio systemWeather band
Press the
WB key.
The weather band station last selected
is tuned in.

Select the desired weather band
station with buttons4 to7.
If a station cannot be tuned in, a scan
is automatically started.

Pressf or ebutton. The next
receivable weather band station is
tuned in.
Satellite radio (SAT)* (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.
This diverse, satellite-delivered program-
ming is available for a monthly subscrip-
tion fee.
For more information, call the Sirius ser-
vice or contact www.siriusradio.com
Program categories
The channels are categorized. The catego-
ries allow you to tune to stations broad-
casting a certain type of program
(PTY mode) (
page 185).
iAdditional optional satellite radio
equipment and a subscription to
satellite radio service provider is re-
quired for the satellite radio operation
described here. Feature description is
based on preliminary information
available at time of printing.
At time of printing, no date for the
availability of optional equipment re-
quired for satellite radio operation had
been set. Contact your authorized
Mercedes-Benz Center for details and
availability for your vehicle.
Satellite 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 we can't 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.

184 Controls in detailAudio systemChannel selection
The following options are available for se-
lecting a channel:

Direct channel input (
page 184)


Manual tuning (
page 184)


Preset channels (
page 184)
Direct channel input

Press“key.

Enter desired channel number using
buttons4 toM.Manual tuning

Press and holdf, d, c or
e button until the desired channel
has been reached.
Preset channels
You can store up to ten channels.


Retrieving a channel from memory
Press the desired channel
button4 toM.


Storing channels
Tune in the desired channel.

Press and hold desired channel
button4 toM until a brief
signal tone sounds.
The channel is stored on the selected
channel button.
iOnly inputs for available channels are
possible.
If a button is not pressed within four
seconds, the radio will return to the last
station tuned.

191 Controls in detail
Audio system
1CD
2CD changer
3CD tray
4CD magazine
Remove magazine and pull CD tray fully
out.

Place CD in recess of tray, label side
up.

Push tray into magazine in direction of
arrow.

Push magazine into CD changer in di-
rection of arrow and close sliding door.
Playing CDs

Pressi button.CD will appear on the display.
The last CD listened to will then start play-
ing at the point where it was switched off.
After the last track on a CD has finished,
the next CD is automatically played.Selecting CDs

You can select from among the CDs in
the CD magazine using buttons4
to6.CD a n d t h e m a g a z i n e s l o t n u m b e r o f t h e
s e l e c t e d C D a p p e a r o n t h e d i s p l a y . T h e
number of the current track is dis-
played after
TRACK
.
If there is no CD in the selected maga-
zine slot,
NO CD
appears on the display
with the corresponding slot number.
iCDs which have been inserted improp-
erly or are unreadable will not be
played.

194 Controls in detailAudio systemSwitching on the telephone
Pressh button.
If you have programmed an unlock
code for the telephone, you must enter
the code now.

Enter the desired telephone number
using buttons4 toM.

If necessary, correct number entered
with the
CLR
key. Press key briefly to
delete the last digit entered; press key
and hold to delete the complete num-
ber.

Press the
OK key after entering correct
code.
The telephone is unlocked. If you have
entered the wrong code, you must re-
peat the entering procedure with the
correct code.Switching off the telephone

Pressh button repeatedly until PHONE OFF
appears in the display.
The receiving symbol in the display
disappears.
Adjusting the volume

Turn control knoba during tele-
phone operation.
The volume increases or decreases de-
pending on the direction in which the
knob is turned.Placing a call
Entering a telephone number and
starting the dialing process

Enter the desired telephone number
using buttons4 toM.
The number can have up to 32 digits,
but only 13 of these are visible on the
display.
If necessary, correct number entered with
the CLR
key.

Press key briefly to delete the last digit
entered.

Press key and hold to delete the com-
plete number.

After correct telephone number has
been entered, press the
SND
key.
iThe volume can be adjusted separately
for the telephone*, voice control sys-
tem* and radio.

197 Controls in detail
Audio system
Automatic repeat dialing (redial)
If a call cannot be connected, press
the
SND
key.
REDIAL
will appear on the display and re-
peated attempts to place the call will be
made for the next four minutes.
Selecting numbers directly from the
directory

Enter previously selected 3-digit
(1-999) number of the entry using
number keys4 toM.

Press the
RCL
key.
The telephone number stored under
that entry will be dialed.

Press the
SND
key.
The call will be made.Speed dialing

Input desired entry number using
number keys4 toM.
A maximum of two digits can be en-
tered.
If necessary, correct the last number
entered with the
CLR
key.

Press the
SND
key.
The telephone number stored under
that entry will be dialed. The number,
L
and the full entry number will be shown
in the display.Quick-dialing

Press one of the desired number
buttons4 toM longer than one
second.
The telephone number saved under
that number will be dialed.!Please be aware that button4
might already be reserved for an emer-
gency call number.

222 Controls in detailUseful featuresTelephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
T he e x t e r n a l a n t e n n a m u s t b e a p p r o v e d b y
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.You can take and place telephone calls
using theí andì buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(
page 138).
See separate operating manual for instruc-
tions on how to use the telephone.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and personal
injury.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. 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 rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call.
If you choose to use the telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
cellular telephone while driving a vehicle.
Only operate the COMAND* (Cockpit Man-
agement and Data System)
1 if road, weather
and traffic conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of approx. 44 feet
(approximately 13.5 m) every second.
1Observe all legal requirements.
Warning!
G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a
vehicle. Whether or not prohibited by law,
for safety reasons, the driver should not use
the cellular telephone while the vehicle is in
motion.
Stop the vehicle in a safe location before
answering or placing a call.

228 Controls in detailUseful featuresA voice connection between the Customer
Assistance Center representative and the
occupants of the vehicle will be estab-
lished. When a voice connection is estab-
lished, the audio system mutes and the
message
TELE AID – INFO CALL ACTIVE

appears in the multifunction display.
Information regarding the operation of
your vehicle, the nearest Mercedes-Benz
Center or Mercedes-Benz USA products
and services is available to you.
For more details concerning the Tele Aid
system, please visit www.mbusa.com and
use your ID and password (sent to you
separately) to learn more (USA only).
iThe indicator lamp on the Information
button¡ remains illuminated in red
for approximately ten seconds during
the system self-check after turning the
SmartKey in the starter switch to
position2 (together with the SOS
button and the Roadside Assistance
button•).
See system self-check (
page 224)
when the indicator lamp does not come
on in red or stays on longer than
approximately ten seconds.
If the indicator lamp on the Information
button¡ is illuminated continuous-
ly and there was no voice connection to
the Response Center established, then
the Tele Aid system could not initiate
an Information call (e.g. the relevant
cellular phone network is not avail-
able). The message
INFO –
CALL FAILED
appears in the multifunc-
tion display.
Information calls can be terminated
using theì button on the multi-
function steering wheel.
!If the indicator lamps do not start flash-
ing after pressing one of the buttons or
remain illuminated (in red) at any time,
the Tele Aid system has detected a
fault or the service is not currently
active, and may not initiate a call. Visit
your Mercedes-Benz Center and have
the system checked or contact the
Response Center at 1-800-756-9018
(in the USA) or 1-888-923-8367 (in
Canada) as soon as possible.