2007 MERCEDES-BENZ C230 buttons

148 Controls in detail
Control system
1Name from the phone book
Press buttons.
The system dials the selected phone
number.

If the connection is successful and
this feature is supported by your
network provider, the name of the
party you are calling (if stored in
your phone book) and the duration
of the call will appear in the multi-
function display.

If no connection is made, the
control system stores the dialed
number in the redial memory.Redialing
The control system stores the most
recently dialed phone numbers. This
eliminates the need to search through your
entire phone book.
Press buttonÿ orè repeatedly
until the message
TEL appears in the
multifunction display.
Press buttons.
The first number in the redial memory
appears in the multifunction display.
Press buttonj ork repeatedly
until the desired name appears in the
multifunction display.
Press buttons.
The control system dials the selected
phone number.
iIf you press and hold buttonj ork
for longer than 1 second, the system scrolls rap-
idly through the list of names until you release
the button again.
Cancel the quick search mode by pressing
buttont.


190 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.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.
!Do not press directly in the display face.
Otherwise, the display will be damaged.
iIf the radio is switched on without the Smart-
Key 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).
iShould excessively high temperatures occur
while the audio system is being operated, the
display will dim. If temperatures continue to rise,
HIGH TEMP will appear in the display, after which
the audio system will be switched off for a
cooling-down period.
iIf your vehicle equipment includes a Mer-
cedes-Benz specified mobile telephone*, you
can adjust its volume separately from the volume
of the audio system while the telephone is being
used.

194 Controls in detail
Audio system
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 196).
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.
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 194)

Manual tuning (page 195)

Automatic seek tuning (page 195)

Scan search (page 195)

Station memory (page 195)

Automatic station memory (Autostore)
(
page 196)
The station search proceeds in the
following frequency increments:

200 kHz in FM range

10 kHz in AM range
Direct frequency input
Select desired waveband.
Press * button.
Enter desired frequency with
buttons1to R.
iFM waveband: 87.7......107.9 MHz
AM waveband: 530......1 710 KHz

196 Controls in detail
Audio system
Autostore – automatic station memory
The Autostore memory function provides
an additional memory level. The station
memory for manually stored stations is not
overwritten.

Calling up Autostore memory level and
storing stations
Press AS soft key briefly.
The radio switches to the Autostore
memory level.
AS and SEARCH
appear in the display and the radio
finds the ten stations with the
strongest signals. These stations
are stored on the station
buttons1 to R in order of
signal strength.

Calling up stations
Press desired station button1
to R.

Leaving the Autostore memory level
Press FM or AMsoft key briefly.
Interrupting radio mode
The radio mode is interrupted by an
incoming call on the telephone*
(
page 212).

Mute on
Press U button.
The radio mode is interrupted and
MUTED appears in the display.

Mute off
Press U button.
The radio mode is again active.Weather band
Press WB soft key.
The weather band station last received
is tuned in.
Selecting a weather band station
directly
Select desired weather band station
with buttons 1 to 7.
If a station cannot be tuned in, a search
is automatically started.

206 Controls in detail
Audio system
Selecting CDs in the audio unit with CD
changer*
You can select from among the
inserted CDs with buttons
Rto6.
R = CD player in the audio unit
1to6 = CDs in the
CD changer*
The magazine slot number of the
selected CD appears next to
CD in the
display, and the number of the
currently played track appears next
to
TRACK.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
Press S button briefly.
The next track will be played.

Skipping tracks backward
Press T button 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 the T or S button
repeatedly will result in multiple tracks
being skipped.
iIf there is no CD in the selected magazine
slot,
NO CD appears in the display with the cor-
responding slot number.

209 Controls in detail
Audio system
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 approx.
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.Adjusting the volume
Turn rotary control of N 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 (
page 191).
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.
iThe volume can be adjusted separately for
telephone mode and audio mode.

210 Controls in detail
Audio system
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.

Searching and calling up telephone
book entries by name
You can access your mobile
telephone’s phone book using the
audio system. You can access both the
main entries and the sub-entries of
your phone book.
Press MEM soft key or press
button‚ orƒ.
Press desired numerical key 2
to 9.
The stored entries are selected
according to the alphabetical order
of the initial letters (e.g. for
S-Smith, press button 7 four
times).
or
Press and hold button ‚
orƒ.
The system jumps from one initial
letter to the next in ascending or
descending order.
iIf the telephone number has been saved to-
gether 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.

212 Controls in detail
Audio system

Speed dial
If you have stored telephone numbers
as speed dial numbers in your
telephone, you can also enter these
with buttons 1 to R on the radio
head unit.
Press desired button 1 to R
briefly.
Press s button.
The call will be made.

Turbo dial
If you have stored telephone numbers
as turbo dial numbers in your
telephone, you can also enter these
with buttons 1 to R on the radio
head unit.
Press desired button 1 to R
until the call is made.Redial
If the number you have dialed is busy, you
can again place calls to the last ten
telephone numbers dialed using the redial
function.

Manual redial
Press s button.
The telephone number last dialed
will appear in the display.
Select desired telephone number
with button ‚ or ƒ.The letter
L and the number of the
memory position appears in the
left-hand corner of the display. The
numbers are stored in the order of
the calls received.
When you have selected a number,
press s button.
The call will be made.
Accepting an incoming call
If the telephone is active in the background
(reception symbol is visible in the display),
the audio source is muted when an incom-
ing call is received. A ringing tone can be
heard and the caller’s telephone number,
or the name under which the telephone
number has been saved in the phone book,
appears in the display. If the caller’s
number is not transmitted with the call,
CALL will appear in the display.
Press s button.
The call is accepted.
iIf you have activated the automatic redial
function on your telephone, the number of the
person being called is automatically redialed af-
ter a short waiting period if there is a busy signal.
Refer to the separate operating instructions for
the mobile telephone.