2006 MERCEDES-BENZ C55AMG Owner's Manual

200 Controls in detail
Audio system
Button and soft key operation
In these instructions, the alphanumeric
keypad (right side of radio panel) and the
function buttons (left side of radio panel)
are referred to as “buttons”. The four keys
below the display panel are referred to as
“soft keys”.Operation
Switching the unit on/off
Switching on
Turn the SmartKey in the starter switch
to position1 or2.
If the audio system was on as you
removed the SmartKey from the starter
switch, the audio system will
automatically come back on as you
turn the SmartKey to position1 or2.
or
Press M button.
!
Do not press directly in the display
face. Otherwise, the display will be
damaged.
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If the radio is switched on without the
SmartKey in the starter switch, it will
automatically switch off again after
approx. 30 minutes.
If your vehicle is equipped with a
telephone, the display may prompt you
to enter your PIN (GSM network) or
code (TDMA or CDMA network).

201 Controls in detail
Audio system
Switching off
Remove SmartKey from starter switch.
or
Press M button.
Adjusting the volume
Turn rotary control of N button.
The volume will increase or decrease
depending on the direction turned.Adjusting sound functions
The bass and treble functions are called up
by pressing the O button.
Settings for bass and treble are stored
separately for the AM and FM wavebands,
weather band, CD mode and telephone
mode.
Bass
Press O button repeatedly until
BASS appears in the display.
Press + or– soft key to increase or
decrease tone level accordingly.
or
Press RES soft key briefly to reset bass
tones to their center level.
The radio switches back to the
standard radio menu 8 seconds after
the last soft key is pressed.
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Should excessively high temperatures
occur while the audio system is being
operated, the display will dim. If tem-
peratures continue to rise,
HIGH TEMP
will appear in the display, after which
the audio system will be switched off
for a cooling-down period.
i
If your vehicle equipment includes a
Mercedes-Benz specified mobile
telephone*, you can adjust its volume
separately from the volume of the
audio system while the telephone is
being used.

202 Controls in detail
Audio system
Adjusting treble
Press O button repeatedly until
TREBLE appears in the display.
Press + or– soft key to increase or
decrease tone level accordingly.
or
Press RES soft key briefly to reset treble
tones to their center level.
The radio switches back to the
standard radio menu 8 seconds after
the last soft key is pressed.Sound system*
You can either program the sound settings
manually (
page 201) or choose settings
via preset sound characteristics.
You can select from among the following
settings:

STANDARD: conventional stereo sound.

SURROUND: the sound is set for better
three-dimensional acoustic character-
istics.

SPEECH: the sound is optimized for the
spoken word.
Press O button repeatedly until
STANDARD, SURROUND, or SPEECH appears
in the display.
Press X or Y soft key repeatedly
until the desired sound setting has
been reached.
The sound is set accordingly.
or
Press RES soft key briefly.
The sound setting is reset depending
on the sound source activated.

Radio mode: STANDARD

CD/AUX mode: SURROUND

Telephone: SPEECH
The radio switches back to the
standard radio menu 8 seconds after
the last soft key is pressed.

203 Controls in detail
Audio system
Returning sound functions to factory
settings
Press O button to call up settings
menu in the display.
Press RES soft key briefly; the respec-
tive sound function is reset to its center
level.
or
Press and hold RES soft key until RESET
appears in the display.
The sound settings for bass and treble
are returned to their center level and
the volume is set to a predefined level.Vehicles with sound system*:
The sound setting is reset depending
on the sound source activated.

Radio mode: STANDARD

CD/AUX mode: SURROUND

Telephone: SPEECH
The radio switches back to the
standard radio menu 4 seconds
after the last soft key is pressed.
Adjusting volume distribution
Call up fader and balance functions by
pressing the P button.
Fader
Press P button repeatedly until
FADER appears in the display.
Press V or W soft key.
The volume is distributed accordingly
between the front and rear of the
vehicle.
or
Press RES soft key briefly.
The fader is reset to its center level.
The radio switches back to the
standard radio menu 8 seconds after
the last soft key is pressed.

204 Controls in detail
Audio system
Adjusting balance
Press P button repeatedly until
BALANCE appears in the display.
Press X or Y soft key.
The volume is distributed between the
left and right sides of the vehicle.
or
Press RES soft key briefly.
The balance is reset to its center level.
The radio switches back to the
standard radio menu 8 seconds after
the last button is pressed.Returning volume distribution to
factory settings
Press P button to call up settings
menu in the display.
Press RES soft key briefly; the
respective volume distribution is reset
to its center (flat) level.
or
Press and hold RES soft key until RESET
appears in the display.
The volume distribution settings for
fader and balance are set to their
center level.
The radio switches back to the
standard radio menu 4 seconds after
the last soft key is pressed.Telephone* muting
If your vehicle equipment includes a
Mercedes-Benz specified mobile
telephone*, you can adjust its volume
separately from the volume of the audio
system while the telephone is being used.

205 Controls in detail
Audio system
Connecting an external audio source
(AUX) to the radio*
An optional dealer-installed cinch-connec-
tor* for connecting an external audio
source may become available for your
vehicle model. Feature description is
based on preliminary information at time
of printing. Contact an authorized
Mercedes-Benz Center for availability.
You can adjust the volume (
page 201),
the sound settings (
page 201) and the
volume distribution (
page 203) for the
AUX input.
Calling up AUX mode
Press and hold Q button until AUX
appears in the display.
Canceling AUX mode
Press any audio source button.
Radio operation
Selecting radio mode
Press b button.
Calling up wavebands
You can choose from among the FM, AM
and WB wavebands.
Weather band (
page 208).Calling up wavebands for radios
without SAT
Press FM or AM soft key to switch
between FM and AM.
The FM and AM wavebands are called
up one after another.
or
Press WB soft key.
The weather band menu is called up.
The waveband currently selected
appears in the upper left-hand corner
of the display.
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FM waveband: 87.7......107.9 MHz
AM waveband: 530......1 710 KHz

206 Controls in detail
Audio system
Calling up wavebands for radios
with SAT
Press FM, AM, or WB soft key repeatedly
until desired waveband has been
selected.
The FM, AM, and WB wavebands are
called up one after another.
The waveband currently selected
appears in the upper left-hand corner
of the display.Selecting a station
The following options are available for
selecting a station:

Direct frequency input (page 206)

Manual tuning (page 207)

Automatic seek tuning (page 207)

Scan search (page 207)

Station memory (page 207)

Automatic station memory (Autostore)
(
page 208)
The station search proceeds in the
following frequency increments:

200 KHz in FM range

10 KHz in AM rangeDirect frequency input
Select desired waveband.
Press *button.
Enter desired frequency with
buttons1to R.
i
You can only enter frequencies within
the respective waveband.
If a button is not pressed within
4 seconds, the radio will return to the
last station tuned.

207 Controls in detail
Audio system
Manual tuning
Select desired waveband.
Press S or Tbutton for approx.
3 seconds.
Press button repeatedly until desired
frequency has been reached.
Step-by-step station tuning takes place
in ascending or descending order. Each
time the button is pressed, the radio
tunes further by 0.2 MHz. During
manual tuning, the radio is muted.
Automatic seek tuning
Select desired waveband.
Press S or T button briefly.
The radio will tune to the next highest
or next lowest receivable frequency.Scan search

Starting scan search
Select desired waveband.
Press SC soft key.
SC will appear in the display. The
radio briefly tunes in all receivable
stations on the waveband selected.

Ending scan search
Press SC soft key or S or T.
The station last played will be
selected and
SC disappears from
the display.Station memory
You can store ten AM and ten FM stations
in the memory.

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.

Calling up stations
Press desired station button1
to R briefly.
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If no station is received after two
consecutive scans of the complete
frequency range, then the scan stops
at the frequency from which it began.