Service BK MERCEDES-BENZ C300 2008 W204 Owner's Guide

202 Controls in detail
Audio system
Satellite radio service is not activated
The telephone number of the SIRIUS Ser-
vice Center and the twelve-digit electronic
serial number (SIRIUS-ID) of the particular
receiver are required when calling the
SIRIUS Service Center for an activation re-
quest.
b
Sat
Service.
Closing screen: Press n.
To activate satellite radio service:
Contact satellite radio service provider
at the telephone number displayed in
the service display.
After the connection is made:
Follow the instructions given by the op-
erator.The activation process may take up to
10 minutes. If it is successful, you will
see the display with the message
Acquiring Signal... followed by the
satellite radio basic menu.Satellite radio service is activated
The basic satellite radio menu appears.
You will hear the channel last tuned in, pro-
vided that it can be received.
Switching on
For important subscription information see
“Subscribing to satellite radio”
(
page 201).
Press buttonb on audio control
unit repeatedly until satellite radio Sat
is selected.
The message
Acquiring Signal... will
appear when the signal is not available.
After the audio system acquires the
signal, the satellite radio basic menu
will appear. The station last tuned to
will begin to play.
iActivating the satellite radio service might
not be available in certain places (e.g., in tun-
nels, parking garages, or within or next to build-
ings). If a subscription is not included with
system purchase, credit card information is re-
quired to activate your account.
The activation process takes approximately 5 to
10 minutes after calling the SIRIUS Service Cen-
ter.
If a satellite receiver is not installed or not prop-
erly installed:
The message
Device unavailable will ap-
pear.
iIt is also possible to activate the satellite ra-
dio service online. To do so please visit SIRIUS
Satellite Radio's website at www.sirius.com
(USA) or www.siriuscanada.com (Canada).

203 Controls in detail
Audio system
Main satellite radio menu
1Main area with channel display
2Selected program category
3Number of selected channel
4Selected channel
5Sound settings
6To select program category
7Current artist and title
8Channel information
9Preset options
aSatellite radio optionsSelecting program category
Satellite radio channels are split up into
categories such as News, Sports News, or
Country Music, if available. The category
list is sorted alphabetically.
Call up category list: b
Cat.
or
Slideomp or rotate ymz until Cat is
highlighted.The category list appears.
Select a category: Slideqmr or ro-
tate ymz.
Set the selected category: Press n.
The selected program category (alpha-
betical order) will appear in the audio
display. The channel last tuned in the
new category will begin to play.
When searching, tuning in, or selecting
from the channel list, the “All Chan-
nels” option accesses all of your sub-
scribed channels.
iMain area 1 can show all channels includ-
ed in your subscription. Which channels are
shown depends on the selected program
category4.
Note that categories and channels shown in illus-
trations are dependent on programming content
delivered by the service provider. Programming
content is subject to change.
Therefore, channel and categories shown in illus-
trations and descriptions contained in this man-
ual may differ from the channels and categories
delivered by the service provider.
iThe channels are categorized. Categories al-
low you to tune to stations broadcasting a cer-
tain type of program.
iWhen you select the category “All Chan-
nels”, you have access to all the channels you
subscribe to, regardless of category.

205 Controls in detail
Audio system
Channel number is valid, but channel is
not included in subscription: The mes-
sage
Please call SIRIUS to subscribe
pops up (
page 202).
Press n to close the message in the
audio display.
Tuning in channels using the satellite ra-
dio channel list
b
Sat
Channel List.
The channel list appears. The dotR in
front of a list entry indicates the cur-
rently selected channel.
Select channel by rotating ymz or
slidingqmr.
Press n to confirm.Tuning in channels using satellite radio
channel presets
b
Presets.
or
Press n when the main area is select-
ed.
The preset menu appears. The dotR
in front of a preset position indicates
that this is the channel currently select-
ed and being listened to.
Select station in memory by rotating
ymz or sliding qmr.
Press n to confirm.
or
Press desired station button1 to
R, with the keypad in audio control
unit briefly.
The audio system tunes in the correspond-
ing channel as long as it is included in your
subscription and is still available.
If the channel is not included in your sub-
scription, you will see the message de-
scribed in the section “Satellite radio
service is not activated” (
page 202).
If the channel is no longer available, you
will see the message
Invalid Channel.
Closing message: Press n.iThe contents of the channel list depends on
which channels are included in your subscription
and which program category you have selected
(
page 203). If only the preview channel is acti-
vated, the channel list contains only the preview
channel.

207 Controls in detail
Audio system
Calling SIRIUS Service Center
b
Sat
Service.
The telephone number of the SIRIUS
Service Center and the twelve-digit
electronic serial number (SIRIUS-ID) of
the particular receiver are displayed.
Closing screen: Slide omp or
pressn.Channel update
The service provider may conduct a chan-
nel update.
During the update, the message
Updating
channels...
will appear on the audio dis-
play.
The channel last tuned will be muted until
the update is completed. You cannot oper-
ated the satellite radio during the update.
After completion of the update, the satel-
lite radio basic menu will appear. The sta-
tion last tuned to will begin to play. If not
available, the next subscribed channel
starts beginning with channel 1. Sound settings
For sound adjusting see:

Volume (page 189)

Balance control and fader
(
page 190)

Bass and treble control (page 189)

Surround sound* (page 190)
iIt may be necessary to call the SIRIUS Ser-
vice Center if, for example:

You want to cancel the subscription or
re-subscribe at a later date.

You forget to pay the bill.

You sell the car to another person.

222 Controls in detail
Audio system
Telephone*
Safety precautionsWhen the telephone is connected via the
Bluetooth® interface to the audio system,
you can operate the telephone using the
following devices:

audio system (page 237)

Audio controller

Audio control unit

buttonss andt on the multi-
function steering wheel (
page 152)

mobile phone keypad
Please note that these functions are only
available with Mercedes-Benz approved
telephones.
Warning!G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving.
Whether or not prohibited by law, for safety
reasons, the driver should not use the cellu-
lar telephone while the vehicle is in motion.
Stop the vehicle in a safe location before
placing or answering a call.
If you nonetheless choose to use the tele-
phone
1 while driving, please use the hands-
free device and be sure to pay attention to
the traffic situation at all times. Use the tele-
phone only when road, weather and traffic
conditions permit. Otherwise, you may not
be able to observe traffic conditions and
could endanger yourself and others.
1Observe all legal requirements.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approxi-
mately 14 m) every second.
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/or
personal injury.
iThe functions and services available to you
while using the telephone depend on your ser-
vice provider and the type of telephone you are
using. See also separate operating manual for in-
structions on how to use your telephone.

225 Controls in detail
Audio system
Functional restrictions
You will not be able to use the telephone,
or you may have to wait a while, in the fol-
lowing situations:

If the telephone is switched off.

If the telephone is not connected via
the Bluetooth® interface to the audio
system.

The telephone must not be locked.

If the telephone has not yet logged into
the network.
The telephone automatically tries to
log into a network. If no network is
available, you will also not be able to
make a “911” emergency call.
If you attempt to make an outgoing call,
the
No Service message will appear for
a short while.

If you switch off the audio system in the
middle of a call, e. g. by switching off
the ignition, that call will be cut off. You
can prevent this from happening as fol-
lows:

Switch the phone to “private mode”
before switching the audio system
off (see telephone operating in-
structions).Activating the telephone
Prerequisites for the telephone
For making calls using the audio system
via the Bluetooth
® interface, you will need
a Bluetooth® enabled telephone.
Before attempting to make or receive calls
via the Bluetooth
® interface, check your
phone's hands-free profile. It must support
version 1.0 or higher (see telephone oper-
ating instructions).
iNot all telephones on the market are suit-
able. Further information on suitable telephones
and on connecting Bluetooth
® enabled tele-
phones to the audio system are available from an
authorized Mercedes-Benz Center.

230 Controls in detail
Audio system
TEL-Basic display
Press buttonh on the audio control
unit to call up the telephone mode.
When the connected phone is ready for op-
eration, the display will look like this:
The following information is displayed in
the status bar:

Actual time:
04:38

Bluetooth® device name of the con-
nected phone, in this case:
blue_mobil

Mobile phone network signal
strengthI. This information will
only be shown with suitable tele-
phones.The bars indicate the current signal
strength of the mobile phone network
for reception. Optimum reception is in-
dicated by all bars full. All bars empty
indicates very poor or no reception.

Receiver symbols ort.
The receiver symbol indicates whether
a call is being connected or is in
progress:
t - not active

READY indicates that a call is possible.

NO SERVICE indicates that the mobile
network is not available.Setting transmit and receive volume
h
Tel
Phone List.
Select an mobile phone from the list.
Select Options
Reception Volume
or
Transmission Volume.
To set the volume: Slideqmror
rotateymz the audio controller.
The volume bar moves up or down.
To confirm selection: Press n or
slideomp the audio controller.
iThese settings should normally not be
changed as the factory settings are matched to
most mobile phones. Find out about the opti-
mum settings for your mobile phone at an
authorized Mercedes-Benz Center.
iChanges may result in significant impair-
ments to the transmission quality. These set-
tings may not be changed during an active phone
call.

231 Controls in detail
Audio system
“911” emergency call
The following describes how to dial a “911”
emergency call using the audio system
head unit when a Mercedes-Benz specified
mobile phone* is connected via the Blue-
tooth
® interface to the audio system. Un-
less otherwise specified, the descriptions
refer to the audio system head unit. Consult the separate telephone operating
instructions that came with your mobile
phone* for information on how to place a
“911” emergency call on the mobile
phone*.
The following conditions must be met for a
“911” emergency call via the audio
system:

Telephone must be switched on.

The corresponding mobile communica-
tions network must be available.
If you cannot make an emergency call, you
will have to initiate rescue measures your-
self. GSM network phones
Placing a “911” emergency call using
audio control unit with the phone un-
locked
Press hbutton to switch to tele-
phone mode.
Enter 911 using the number keypad on
the audio control unit.
Press sbutton.
or
Press n for dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency.
iThe “911” emergency call system is a public
service. Using it without due cause is a criminal
offense.
iThis function places a call to the local 911
provider. It does not initiate a Tele Aid call.
iEmergency calls may not be possible with all
telephone networks or if certain network serv-
ices and/or telephone functions are active.
Check with your local service providers.

232 Controls in detail
Audio system
Placing a “911” emergency call with the
phone lockedCDMA network phones
Placing a “911” emergency call using
audio control unit with the phone un-
locked
Press hbutton to switch to tele-
phone mode.
Enter 911 using the number keypad on
the audio control unit.
Press sbutton.
or
Press n for dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency.
Placing a “911” emergency call with the
phone locked
iIf no SIM card is in the mobile phone, with a
few types of mobile phones
NO SERVICE ap-
pears in the audio display. In that case, you only
can make an emergency call on the mobile
phone itself, without the use of the audio control
unit.
iIf the mobile phone is locked, you only can
make an emergency call on the mobile phone it-
self, without the use of the audio control unit.
iIf the mobile phone is locked, you only can
make an emergency call on the mobile phone it-
self, without the use of the audio control unit.

297 Controls in detail
Useful features
All information relevant to the emergency,
such as the location of the vehicle (deter-
mined by the GPS satellite location sys-
tem), vehicle model, identification number
and color are generated.
A voice connection between the Response
Center and the occupants of the vehicle
will be established automatically soon af-
ter the emergency call has been initiated.
The Response Center will attempt to deter-
mine more precisely the nature of the acci-
dent provided they can speak to an
occupant of the vehicle.The Tele Aid system is available if

it has been activated and is operation-
al. Activation requires a subscription
for monitoring services, connection,
and cellular air time

the relevant cellular phone network
and GPS signals are available and pass
the information on to the Response
Center

there is sufficient voltage in the vehicle
batteries
iDuring the emergency call message Emer-
gency Call Activated
is displayed, opera-
tion from audio system or COMAND* is not
possible. The automatic climate control can be
still adjusted using the switches on the climate
control panel.
iIf no vehicle occupant responds, an ambu-
lance will be sent to the vehicle immediately.
iLocation of the vehicle on a map is only pos-
sible if the vehicle is able to receive signals from
the GPS satellite network and pass the informa-
tion on to the Response Center.
Warning!G
If the indicator lamp in the SOS button is
flashing continuously and there was no
voice connection to the Response Center
established, then the Tele Aid system could
not initiate an emergency call (e.g. the rele-
vant telephone network is not available).
The message
Call failed appears in the
multifunction display for approximately
10 seconds.
Should this occur, assistance must be sum-
moned by other means.
iDuring the emergency call the telephone is
switched off automatically and must be switched
back on to make a call.
iThe “911” emergency call system is a public
service. Using it without due cause is a criminal
offense.