Page 111 of 297

107 Audio system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Cassette eject
Press the eject (EJ) key. The display will fold down and
the cassette will be ejected. Remove the cassette, then
fold the display back up manually. The radio will switch
back to radio mode automatically.
Note:
The cassette will not be ejected when the radio is
switched off.
Important:
If the display is in the down position for more than
20 seconds, 2 successive beeps will be heard. This will
continue at 5 second intervals until the display is
returned to its normal position.
Track selection
Press the track selection
(TRK) key. The current track
will be displayed as “SIDE 1”
or “SIDE 2”. The track will be
changed automatically at the
end of the tape.Track search forwards/backwards
Press the button.
“SEEK FWD” will be shown on
the display and the track
search will run the tape
forwards to the start of the
next track.
Press the button.
“SEEK RWD” will be shown
on the display and the track
search will run the tape
backwards to the start of the
track currently playing. Track search can be interrupted
by pressing the same button again.
Note:
The beginning of a track can only be located if there is a
break of at least 4 seconds between tracks.
Page 136 of 297

132 Telephone
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Telephone, general
See separate instruction manual for instructions on how
to operate the telephone.
1 Observe the legal requirements in all countries concerned.
Wa r n i n g !
Your concentration on the road and traffic
conditions must take priority. Only use the
telephone
1 when road and traffic conditions
permit.
Park if you wish to use the handset rather than the
hands-free device to make a call.Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is covering
a distance of approximately 50 feet (approximately
14 m ) e v e r y s e c o n d .
Never operate radio transmitters equipped with a
built-in or attached antenna (i.e. without being
connected to an external antenna) from inside the
vehicle while the engine is running. Doing so could
lead to a malfunction of the vehicle’s electronic
system, possibly resulting in an accident and
personal injury.
Page 164 of 297

160 Tele Aid
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Upgrade Signals
Tele Aid system processes calls using the following
priority.
• Automatic emergency – First priority
• Manual emergency – Second priority
• Roadside assistance – Third priority
• Information – Fourth priority
Should a higher priority call be initiated while you are
connected, an upgrade (alternating) tone will be heard,
and the appropriate indicator lamp will f lash. If certain
information such as vehicle identification number or
client information is not available, the operator may
need to retransmit. During this time you will hear a
chirp and voice contact will be interrupted. Voice
contact will resume once the retransmission is
c omplete. Once a cal l is concl uded , a ch irp w ill be hea rd ,
the appropriate indicator lamp will stop flashing and a
tone will be heard indicating that the system has reset.
The audio system operation will resume.Important!
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 Client Assistance at
1-800-FOR-MERCedes (1-800-367-6372) in the USA or
Customer Service at 1-800-387-0100 in Canada.
Notes:
The indicator lamp in the respective button flashes until
the call is concluded and this can only be completed by
a Response Center or Client Assistance Center
representative.
When a Tele Aid call has been initiated, the audio
system 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. Disconnect the coiled cord and place
the call. A message will appear in the radio display to
indicate that a Tele Aid call is in progress.