Page 124 of 304

124 Controls in detailAudio systemDirect track selection
Tracks can be selected directly using the
buttons on the alpha-numeric keypad.
Press the
“
function button, fol-
lowed by the track number.
Telephone* operation
Various functions of the Mercedes-Benz in-
tegrated cellular telephone can be per-
formed and displayed via the car radio.
Further instructions for operating the car
telephone can be found in the operation
guide for the cellular telephone*.
Switching the telephone on and off
Switching on:
Press the
h
button,
TEL
appears in
the corner of the display.Switching off:
Press and hold the
h
button until
the telephone symbol
TEL
no longer ap-
pears in the display,
or
Press the “PWR” button on the phone’s
keypad.
Entering telephone number and start-
ing dialing process
Enter the desired telephone number
using the alpha-numeric keypad.
The number can have up to 32 digits,
but only 13 of these can be displayed.
Press the
SND
button to start the dialing
process.
The entered number can be corrected us-
ing the
CLR
key.
Press the
CLR
key briefly.
The last digit will be deleted.
Press the
CLR
key longer.
The complete number will be deleted.
Calling up the phone book
The numbers stored in telephone memory
can be called up via either name or number
entries. The memory contents from the
portable phone must be downloaded and
the telephone menu must be selected in
order to call up the phone book. Refer to
the “Memory download” section of the cel-
lular telephone operation guide for more
information.
Page 126 of 304

126 Controls in detailAudio systemAccepting an incoming call in tele-
phone mode
With an incoming call, the ringing tone will
be heard and the message
CALL
appears in
the display.
Press the
SND
key to answer the call.
Accepting an incoming call in tape, CD
or radio mode
If the telephone is activated in the back-
ground (telephone symbol in the display),
the audio system will automatically switch
to telephone mode when an incoming call
is received. The audio source is muted, the
ringing tone is heard and the message
CALL
appears. After the call has been ter-
minated, the previously selected audio
source is resumed.
Terminating call
Press the
END
key to terminate a cur-
rent call.Component malfunctions
The radio, CD changer* and
Mercedes-Benz integrated cellular tele-
phone* are part of a fiberoptic networked
system. Failure of one of the components
can lead to malfunctions of the other com-
ponents. Please contact your authorized
Mercedes-Benz Center or call
1-800-FOR-MERCedes for more informa-
tion in the event of a malfunction.
Page 144 of 304

144 Controls in detailUseful featuresSee separate operating manual for instruc-
tions on how to use the telephone.
Tele Aid
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-
o m m e n d t h a t y o u p u l l o v e r t o a s a f e l o c a t i o n
and stop the vehicle before placing or taking
a telephone 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.
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 (ap-
proximately 13.5 m) every second.
1Observe all legal requirements.
Warning!
G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle. Whether or not prohibited by law, for
safety reasons, the driver should not use the
cellular telephone while the vehicle is in mo-
tion.
Stop the vehicle in a safe location before an-
swering or placing a call.
!The initial activation of the Tele Aid sys-
tem may only be performed by com-
pleting the subscriber agreement and
placing an acquaintance call using the
SOS button. Failure to complete either
of these steps will result in a system
that is not activated. If the system is
not activated, the indicator lamp in the
SOS button stays on after turning the
key in steering lock to position2.
If you have any questions regarding ac-
tivation, please call the Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).