2004 MERCEDES-BENZ C240 4MATIC Telephone

197 Controls in detail
Audio system
Automatic repeat dialing (redial)
If a call cannot be connected, press
the
SND
key.
REDIAL
will appear on the display and re-
peated attempts to place the call will be
made for the next four minutes.
Selecting numbers directly from the
directory

Enter previously selected 3-digit
(1-999) number of the entry using
number keys4 toM.

Press the
RCL
key.
The telephone number stored under
that entry will be dialed.

Press the
SND
key.
The call will be made.Speed dialing

Input desired entry number using
number keys4 toM.
A maximum of two digits can be en-
tered.
If necessary, correct the last number
entered with the
CLR
key.

Press the
SND
key.
The telephone number stored under
that entry will be dialed. The number,
L
and the full entry number will be shown
in the display.Quick-dialing

Press one of the desired number
buttons4 toM longer than one
second.
The telephone number saved under
that number will be dialed.!Please be aware that button4
might already be reserved for an emer-
gency call number.

198 Controls in detailAudio systemEmergency call
Press button4 longer than one
second.

A call will be placed to the saved num-
ber (e.g. 911).
You can make an emergency call to an
emergency rescue station with a mobile
communications network.
The emergency call will be placed as long
as the corresponding mobile communica-
tions network is available. To do this,
switch the telephone on if this has not al-
ready been done.The call will also be placed even if the un-
lock code is not entered.
Emergency calls may not be possible with
all telephone networks or if certain net-
work services and/or telephone functions
are active. Check with your local network
operation company. It may take some time
to set up an emergency call.
To use this function you must ensure that
the number stored in memory location 1 is
the number to be dialed in case of emer-
gency.
If an emergency call cannot be connected,
the message
SYSTM BUSY
appears.Accepting 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, appears on the display. If
the caller’s number is not transmitted,
CALL
will appear in the display.

Press the
SND
key to accept call.
!Please be aware that the 911 emergen-
cy call system is a public service. Using
it without due cause is a criminal of-
fense.

199 Controls in detail
Audio system
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-
pears on the display. If the caller’s number
is not transmitted,
CALL
appears in the dis-
play.

Press the
SND
key to accept the call.Muting a call
It is possible to mute a call; the caller is
then no longer able to hear you.
Mute on

Press the
MUT
key.
Mute off

Press the
MUT
key.
Terminating a call

Press the
END
key.
The current call is terminated.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.
Terminating the second call

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

219 Controls in detail
Useful features
Armrest storage spaces
1Handle
2Armrest
3Button
Opening storage compartment
Pull handle1 and lift armrest.
Closing storage compartment

Press armrest down until it engages
into place.Opening telephone compartment

Press button3 on driver’s or
passenger side and lift armrest.
Closing telephone compartment

Press armrest down until it engages
into place.
Changing inclination of armrest

Pull up on armrest.
Lowering armrest

Pull handle1 to lower armrest.
iVehicles with climate control:
The storage compartment can be
heated or cooled.
The compartment can get very warm
due to its confined space. When storing
heat sensitive objects in the compart-
ment, close the air vent (
page 160)
while heating the passenger compart-
ment.
!Vehicles with climate control:
Do not obstruct the air vent in the
storage compartment.

222 Controls in detailUseful featuresTelephone*
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.
T he e x t e r n a l a n t e n n a m u s t b e a p p r o v e d b y
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.You can take and place telephone calls
using theí andì buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(
page 138).
See separate operating manual for instruc-
tions on how to use the telephone.
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.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call.
If you choose to use the telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
cellular telephone while driving a vehicle.
Only operate the COMAND* (Cockpit Man-
agement and Data System)
1 if road, weather
and traffic conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of approx. 44 feet
(approximately 13.5 m) every second.
1Observe all legal requirements.
Warning!
G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a
vehicle. Whether or not prohibited by law,
for safety reasons, the driver should not use
the cellular telephone while the vehicle is in
motion.
Stop the vehicle in a safe location before
answering or placing a call.

246 OperationDriving instructionsPassenger compartmentDriving abroad
Abroad, there is an extensive
Mercedes-Benz service network at your
disposal. If you plan to drive into areas
which are not listed in the index of your
Mercedes-Benz Center directory, you
should request pertinent information from
your authorized Mercedes-Benz Center.Control and operation of radio
transmitters
COMAND*, radio and telephone*Telephones* and two-way radios
Radio transmitters, such as a portable
telephone or a citizens band unit should
only be used inside the vehicle if they are
connected to an antenna that is installed
on the outside of the vehicle.
Refer to the radio transmitter operation
instructions regarding use of an external
antenna.
Warning!
G
Always fasten items being carried as
securely as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and cause injury
to vehicle occupants unless the items are
securely fastened in the vehicle.
The trunk is the preferred place to carry
objects.
Warning!
G
Please do not forget that your primary
responsibility is to drive the vehicle safely.
Only operate the COMAND (Cockpit
Management and Data System), radio or
telephone
1 if road, weather and traffic
conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of approximately
44 feet (approximately 13.5 m) every
second.
1Observe all legal requirements
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,
possibly resulting in an accident and
personal injury.

299 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
K
CLOSE
SUNROOF!
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding/pop-up roof open.

Close the sliding/pop-up roof
(page 203).
J
CLOSE
SUNROOF!
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding/pop-up roof open.

Close the sliding/pop-up roof
(page 203).
L
TELE AID
DRIVE TO WORKSHOP!
One or more main functions of the Tele
Aid system* are malfunctioning.

Have the Tele Aid system* checked by
an authorized Mercedes-Benz Center.
ì
FUNCTION
NOT AVAILABLE!
This display appears if buttonì
orí on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone*.
Ê
TRUNK OPEN!
This message will appear whenever the
trunk lid is open.

Close the trunk lid.
W
WASHER FLUID
CHECK LEVEL!
The fluid level has dropped to
about
1/3of total reservoir capacity.

Add washer fluid (
page 259).

362 Technical termsCOMAND*
(C
ockpit M
anagement and D
ata
System)
Information and operating center for
vehicle sound and communications
systems, including the radio and the
navigation system, as well as other
optional equipment (CD changer*,
telephone*, etc.).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to
adjust settings.
Cruise control
Driving convenience system for
automatically maintaining the vehicle
speed set by the driver.Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine
produced.
Engine oil viscosity
Measurement for the inner friction
(viscosity) of the oil at different temper-
atures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can
tolerate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability P
rogram)
Improves vehicle handling and
directional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the
system's threshold to tighten the
seat belts.
->SRSFSS
(F
lexible S
ervice S
ystem)
Service indicator in the multifunction
display that informs the driver when
the next vehicle maintenance service
is due.
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the gear selector
lever.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special
receivers. Employs CD digital maps for
navigation.