2003 MERCEDES-BENZ C240 4MATIC radio controls

173 Controls in detail
Audio system
Scan tuning

Starting scan tuning
Select the desired frequency band.

Press the
2
button.
SC will appear on the display. The
radio briefly tunes into all receiv-
able stations on the band selected.
The first scan will tune only the sta-
tions with a strong signal. The sec-
ond scan will tune every receivable
station.


Ending scan tuning
Press the
2
button or the
d
,
c
, f
or
e
button.
SC disappears from the display.Station memory
You can store ten AM and ten FM stations.


Storing stations
Tune in the desired station.

Press and hold the desired station
button1 to0 until a brief signal
tone is heard.
The frequency is stored on the se-
lected station button.


Retrieving a station from memory
Press the desired station button1
to0.
Storing stations automatically
(Autostore)
The Autostore memory function provides
an additional memory level. The station
m e m o r y f o r m a n u a l l y s t o r e d s t a t i o n s i s n o t
erased.


Calling up the Autostore memory level
Briefly press the
AS key.
AS appears on the display in
inversed-color format.
The radio finds the ten stations with
the strongest signals. These sta-
tions are stored on the station
buttons1 to0 in the order of signal
strength.


Retrieving a station from memory
Press the desired station button1
to0.


Leaving the Autostore memory level
Press the
AS key.
AS appears on the display in in-
versed-color format.

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

Select the desired weather band sta-
tion with buttons1 to7.
If a station cannot be tuned in, a scan
is automatically started.

Press the
f
or
e
button. The
next receivable weather band station is
tuned in.
Cassette mode
Playing cassettes
Press the
3
button.
The display folds down and the cas-
sette slot becomes visible.

Press the cassette into the slot until it
engages and tap it gently.
The cassette will be pulled in automati-
cally. The system switches to cassette
mode (
TAPE
). Track 1 will be played and
SIDE 1
appears in the display. Track 1
is the side of the cassette which is fac-
ing upward. The cassette deck will au-
tomatically detect the type of tape.

Fold the display back up and press gen-
tly on the display frame to lock in place.
or

If a cassette is already in the mecha-
nism, press the
j
button.
Track selection

Press the
TRK
key.
Upon selection of the track, the display
shows
SIDE 1
or
SIDE 2
correspond-
ingly.

You can switch track sides at any time.
The track side will be changed auto-
matically at the end of the tape.
iDo not press directly on the display
face.
iA warning signal will sound after
20 seconds if the display is left in the
down position. If the display is not
closed, a warning signal will sound and
the radio will be muted.

175 Controls in detail
Audio system
Cassette eject
Press the eject button
3
.
The display will fold down and the cas-
sette will be ejected. The system will
switch back to radio mode automatical-
ly.

Fold the display back up.Track search
Track search forward

Press the
f
button.
SEEK FWD
will appear in the display. The
track search will run the tape forward
to the start of the next track and switch
to play.Track search backward

Press the
e
button.
SEEK RWD
will appear on the display.
The track search will run the tape back-
ward to the start of the track currently
playing and switch to play.
Stopping track search

Press the
d
, c
, f
or
e

button.
The cassette will switch over to Play.
iThe cassette will not be ejected when
the system is switched off or switched
to another operating mode.
iThe cassette will not be ejected when
the system is switched off or switched
to another operating mode.

178 Controls in detailAudio systemCD changer* operating mode
General notes
Should excessively high temperatures oc-
cur while in CD mode,
CD TEMP HIGH
will
appear on the display and muting will take
pl ace . The uni t wil l then s witch ba ck to the
last operating mode used until the temper-
ature has decreased to a safe operating
level.
Should excessively low temperatures oc-
cur while in CD mode,
CD TEMP LOW
will ap-
pear on the display, but the CD will
continue to play.
Handle CDs carefully to prevent interfer-
ence during playback. Avoid fingerprints
and dust on CDs. Do not write on CDs or
apply any label or other material to them.
Use only original CDs. Using copied CDs
may create problems during playback.Clean CDs from time to time with a com-
mercially available cleaning cloth. No sol-
vents, anti-static sprays, etc. should be
used for cleaning. Replace the CD in its
case after use. Protect CDs from heat and
direct sunlight.
Only use CDs, which bear the label shown
and that conform to the compact disc dig-
ital audio standard (IEC 60908).
Use of CDs which do not meet this stan-
dard may cause damage to the CD chang-
er. Do not play single-CDs (80 mm) with an
adapter.Operational readiness of CD changer
If a CD changer has been installed in the
system, it can be operated from the front
control panel of the radio. A loaded maga-
zine must be installed for CD playing.
Loading/unloading the CD magazine

Slide the changer door to the right and
press the eject button
3
.

The magazine will be ejected.Warning!
G
The CD changer* is a Class 1 laser product.
There is a danger of invisible laser radiation
if the cover is opened or damaged.
Do not remove the cover. The CD changer*
does not contain any parts which can be ser-
viced by the user. For safety reasons, have
any service work which may be necessary
performed only by qualified personnel.


182 Controls in detailAudio systemTelephone* operation
Various car telephone functions and oper-
ating steps for the car telephone can be
performed and displayed via the audio sys-
tem.
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel,
voice control system* and the car tele-
phone.
Switching on the telephone
Press the
h
button.

If you have programmed an unlock
code for the telephone, you must input
the code now.

Press the
OK key.
The telephone is unlocked. If you enter
the wrong code, you must re-enter the
correct code.Switching off the telephone

Press the
h
button repeatedly until
PHONE OFF
appears in the display.
The receiving symbol in the display dis-
appears.
Adjusting the volume

Turn control knob
a
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 start-
ing the dialing process

Enter the desired telephone number
using buttons1 to0.
The number can have up to 32 digits,
but only 17 of these are visible on the
display.

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

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

186 Controls in detailAudio systemAccepting an incoming call
Accepting an incoming call in telephone
mode
With an incoming call, a ringing tone can
be heard and the caller’s telephone num-
ber, or the name under which this tele-
phone number has been saved in the
telephone book, appear on the display. If
the caller’s number is not transmitted, CALL
will appear in the display.

Press the
SND
key to accept the call.
Accepting an incoming call in cassette,
CD or radio mode
If the telephone is activated in the back-
ground (receiving symbol
S visible on dis-
play), the audio source is muted when a
call is received. The ringing tone is heard
and the caller’s telephone number or the
name under which this telephone number
has been saved in the telephone book ap-
pear on the display. If the caller’s number is not transmitted,
CALL
appears in the display.

Press the
SND
key to accept the call.
Muting a call
It is possible to silence a call, the caller is
then no longer able to hear you.
Muting

Press the
MUT
key.
Unmuting

Press the
MUT
key again.
Terminating a call

Press the
END
key.

The current call is disconnected.Call waiting
If you receive another call during an al-
ready active call, you can accept the sec-
ond call and switch between the two.
Accepting a second call

Press the
SND
key.
You are connected with the second
caller, the first call is muted.
Switching between the calls

Press the
SND
key again.
Terminating the second call

Press the
END
key.
The current call will be terminated. You
are connected with the muted call
again.

208 Controls in detailUseful featuresCigarette lighter
The cigarette lighter is located in the cen-
ter console compartment in front of the
armrest (
page 25).
1Cigarette lighter
2Cover

Turn key in the starter switch to
position1 or2.

Slide cover2 rearward.

Push in cigarette lighter1.
The lighter will pop out automatically
when hot.
Telephone*
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.
The external antenna must be approved by
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.
Warning!
G
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
When leaving the vehicle, always remove the
key from the starter switch, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.iThe lighter socket can be used to ac-
commodate electrical accessories up
to a maximum 85 W.
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.

216 Controls in detailUseful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. key inside vehicle), and the
reserve key is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.

Then return to your vehicle and pull the
trunk recessed handle for minimum
of 20 seconds until the SOS button is
flashing.
The message
EMERGENCY CALL –
CALL CONNECTED appears in the multi-
function display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your Acquaintance Call.
!If the indicator lamp continues to flash
or the system does not reset, contact
the Response Center at
1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada), or
Mercedes-Benz Customer Assistance
at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or Cus-
tomer Service at 1-800-387-0100 in
Canada.iThe indicator lamp in the respective
button flashes until the call is conclud-
ed. Calls can only be terminated by a
Response Center or Customer Assis-
tance Center representative except
Roadside Assistance and Information
calls, which can also be terminated by
pressing button
ì
on the multifunc-
tion steering wheel.
iWhen a Tele Aid call has been initiated,
the audio system or the COMAND* sys-
tem audio is muted and the selected
mode (radio, tape or CD) pauses. The
optional cellular phone (if installed)
switches off. If you must use this
phone, the vehicle must be parked. Dis-
connect the coiled cord and place the
call. The COMAND* navigation system
(if engaged) will continue to run. The
display in the instrument cluster is
available for use and spoken com-
mands are only available by pressing
the RPT button on the COMAND* unit.
A pop-up window will appear in the CO-
MAND* display to indicate that a
Tele Aid call is in progress.