2004 MERCEDES-BENZ SL-Class telephone operation

28 AudioRadio operationIn chapter “Audio” you will find detailed in-
formation regarding 
radio operation

CD operation and

sound adjustments
If you have not done so already, please fa-
miliarize yourself with these functions by
reading chapter “At a glance”.
Main radio menu FM1Frequency band (FM, AM, WB) and me-
mory location of station, e.g. “1”
2Station frequency
3Symbol bar
Press c to switch to radio operati-
on.
The station last tuned to will begin to
play.Muting

Press Ö while listening to the radio.
The symbol R will appear in the symbol
bar.

Press Ö again to resume listening to
the current station.
The symbol R will have disappeared.

Press any system key, e.g. d.
COMAND will switch to CD mode.
Switching on
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iYou can operate the telephone and the
navigation system while the radio is on.iMuting will also be canceled if you
switch to a different audio source, e.g.
CD, or if you alter the volume.Switching another system on

65 Audio
Sound settings
Setting Bass/Treble/Balance
1Setting mode active
Turn the right-hand rotary/push-button
v to move the cursor to the parameter
you want to adjust and press to con-
firm.
The setting mode is active. The activa-
ted sound parameter is shown in red.

Turn the right-hand rotary/push-button
v to set the desired value.

Press the button.
The value is set. The sound feature is
shown in black.Reset the Settings to “0”

Turn the right-hand rotary/push-button
v to highlight “Reset” and press to
confirm.
COMAND sets treble and bass to “0”
and sets the sound-center into the
middle of the vehicle.
Return to the main audio menu

Press *.
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iThe sound-center adjustments affect
the settings for the radio (FM/AM/WB)
and CD operation.
Adjustments which are made to the na-
vigation system will affect the voice
control system and the telephone.

69 Satellite radio*
Important notes
Service information display1Phone number of the provider,
(SIRIUS) or “Call Service Provider”
2The number of your SAT tuner

Press W to switch to satellite radio
operation.
The Service information display will ap-
pear if the satellite radio function has
not yet been subscribed to.

Contact satellite radio service provider
at the telephone number displayed in
the screen.
After the connection is made:

Follow the instructions given by the
operator.
The activation process may take up to
10 minutes. If it is successful, you will
see the display with the message
“Acquiring Signal. Please wait...”
(page 74) followed by the main satel-
lite radio menu (
page 74).
Subscribing to satellite radio
iCredit card information may be re-
quired for your application.
The activation process takes up to ap-
proximately 10 minutes.

74 Satellite radio*Satellite radio operationSee “Subscribing to satellite radio” for im-
portant subscription information
(page 69).

Press W to switch to satellite radio
operation.
The above message will appear at start
up or when the signal is not available.After the COMAND acquires the
signal, the main satellite radio menu will
appear. The station last tuned to will begin
to play.
Main satellite radio menu1Station category
2Station name or channel number
3Name of the track currently playing
4Name of the artist
5Menu fields to activate submenus
6Activates menu fields, second levelChanging between station name and
channel number
Each station has both a station name and
a channel number.

Press u.
The channel number will appear.

Press u again.
The station name will reappear.
Switching on
iYou can display 2, 3 and 4 in full:
Station information (
page 82)

Track information (
page 81)
iYou can operate the telephone and the
navigation system while the satellite ra-
dio is on.

85 Telephone*
Important notes
Multifunction display
Telephone operation
SMS function
Emergency call
Service numbers

87 Telephone*
Important notes

Close the windows and reduce all out-
side noise as much as possible when
you use hands-free operation.

A brief disconnection from the cellular
network is not a malfunction, as this
can occur when the network switches
areas. The phone will automatically try
to sign on to a network again.

If the message “Locked. Please enter
code” appears, enter the unlock code
to enable all telephone functions
(page 96).

If a menu other than the telephone
menu is displayed on the COMAND
screen, the display will change if an
outgoing call is sent out via the multi-
function steering wheel.In the following situations, it is not possible
or not yet possible to use the telephone:

The telephone is already unlocked but
is not or not yet registered in the net-
work.
The message “No Service” appears.
The telephone will try to register into
an existing network. If the network is
available, the telephone will be ready
for use.
The above message also appears 
if the network is no longer available
due to weak signals

if you try to make a call (message
appears for 8 seconds)

The message “Telephone is being acti-
vated. Please wait.” appears.
COMAND prepares the telephone for
use. Select other system functions, e.g.
radio, by pressing the corresponding
button or wait until the telephone is ac-
tive.

One of the two messages “No telepho-
ne” or “Telephone not connected” ap-
pears.
Please connect the telephone.

The message “Telephone defective”
appears.
Please contact an authorized
Mercedes-Benz Center.

88 Telephone*Important notesIn the following situation, it is not yet pos-
sible to use the functions “Dial number
from phone book”, “Redial” and
“Speed-dial”:
The mobile telephone has been
plugged into its holder correctly, the
COMAND operating unit has been swit-
ched on and the phone book download
function has been actuated (see Tele-
phone Operation Guide).
Once the download process has been
completed, the above functions be-
come available. It is not possible to make a call when one
of the following messages appears:

“System busy, redial?”
Dialing has failed because system is
busy.

“No service, redial?”
Dialing has failed because network
cannot be received.

“Phone off”
Tele Aid is active, the telephone func-
tion will switch on automatically after
Tele Aid is ended.

92 Telephone*Telephone operation

Telephone operationQuick reference