Page 142 of 425

141 Controls in detail
Control system
TEL menu
You can use the functions in the
TEL menu
to operate your telephone, provided it is
connected to a hands-free system and
switched on.
Switch on the telephone and the radio.
Press button ÿ or è on the
steering wheel repeatedly until you see
the
TEL menu in the left multifunction
display.Which messages will appear in the right
multifunction display field depends on
whether your telephone is switched on or
off:
If the telephone is off, the message in
the multifunction display is:
TEL OFF.
If the telephone is on:
The telephone will then search for a
network. During this time the right
multifunction display is empty.
As soon as the telephone has found a
network,
READY is indicated in the right
multifunction display.
1Signal strength
This standby message indicates that your
telephone is ready for use and you can
operate it using the control system.
Warning!G
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 tele-
phone while driving, please use the
hands-free device and only use the tele-
phone when weather, road, and traffic con-
ditions permit.
Some jurisdictions prohibit the driver from
using a mobile 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 44 feet
(approximately 14 m) every second.
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/or
personal injury.
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145 Controls in detail
Audio system
Audio system
Audio and telephone, operation
These instructions are intended to help
you become familiar with your
Mercedes-Benz audio system. They con-
tain useful tips and a detailed description
of the user functions.Operating safetyLocation of the audio system
The audio system control panel is located
behind a cover in the upper part of the cen-
ter console.
1Cover
Briefly press on the lower part of
cover1.
The cover opens automatically.
Warning!G
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a stand-
still and operate the system only when road
and traffic conditions permit. Always pay full
attention to traffic conditions first before
operating system controls while driving.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car is cover-
ing a distance of 44 feet (approximately
14 m) every second.
Warning!G
Any alterations made to electronic compo-
nents can cause malfunctions.
The radio, amplifier, CD changer and
telephone are interconnected. When one of
the components is not operational or has
not been removed/replaced properly, the
function of other components may be im-
paired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out
by an authorized Mercedes-Benz Center.
Page 148 of 425
147 Controls in detail
Audio system
ItemPage
1CD mode selector158
2Manual tuning
(radio)151
Fast forward/reverse
(cassette, CD)156, 160
Speed dialing memory
(telephone)165
3Radio mode selector151
4Display panel
Cassette compartment
behind display panel
ItemPage
5Alpha-numeric keypad
Band selection,
station buttons (radio)151
CD selection (CD)160
Telephone number entry,
retrieving speed dialing
memory (telephone)163
6Scanning
(radio, cassette, CD)153,
156,
160
7Function button152
8Light-emitting diode
ItemPage
9Function keys
aCassette eject155
bCassette mode selector154
cTelephone mode selector162
dSeek tuning (radio)152
Track search (cassette, CD)155,
160
Speed dialing memory
(telephone)165
eOn/off148
Volume148
Page 149 of 425

148 Controls in detail
Audio system
Button and soft key operation
In these instructions, the alpha-numeric
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 on/off
Switching on:
Turn SmartKey in starter switch to
position1 or2.
or
Press control knoba.
Switching off:
Remove SmartKey from starter switch.
or
Press control knoba.Adjusting the volume
Turn control knoba.
The volume will increase or decrease
depending on the direction turned.
Adjusting audio functions
Press the
AUD key to call up the bass,
treble, balance and fader functions in the
various operating modes. Settings for bass
and treble are stored separately for the AM
and FM frequency bands, cassette mode
and CD mode.
!Do not press directly on 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 approximately 30 minutes.
iThe volume setting can be selected
separately for the telephone and audio system.
Page 152 of 425

151 Controls in detail
Audio system
You can select from among the
following settings:
DRV: The tone level is set to the
Driver position; sound is directed
toward the passengers.
SP: The tone level is set for Speech,
optimizing the sound for the spoken
word.
AMB: The tone level is set for
Ambience, producing a
three-dimensional sound.
OFF: The audio system sound
selection is turned off.
Telephone muting
The radio will switch to telephone mode
when a call is incoming. The current audio
source is muted.
Radio operation
Selecting radio mode
Pressb button.
You can now receive radio stations
over the analog FM, AM or WB station
frequencies.
Analog station frequencies
Selecting the band
You can select from among FM, AM or WB
frequency bands.
Weather band (
page 154).
Press FM, AM or WB key repeatedly
until desired band has been selected.
The FM, AM and WB frequency bands
are called up one after the other.
The frequency band 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 band input
(
page 152)
Manual tuning (page 152)
Automatic seek tuning (page 152)
Scan tuning (page 153)
Preset buttons (page 153)
Automatic station memory (Autostore)
(
page 153)
iFM frequency band:
FM 87.7......107.9 MHz
AM frequency band:
MW (medium wave) 530......1710 KHz
Page 153 of 425
152 Controls in detail
Audio system
Direct frequency input
Select the desired frequency band.
Press“ button.
Enter desired frequency using
buttons4 toM.Manual tuning
Select the desired frequency band.
Press and hold either thed or
cbutton until the desired
frequency is reached.
Step-by-step station tuning takes place
in ascending or descending order of
frequency. The first three tuning steps
will take place without muting. After-
wards, the radio will be muted and
high-speed tuning will take place until
the button is released.Automatic seek tuning
Select the desired frequency band.
Press either thef or ebutton.
The radio will tune to the next higher or
next lower receivable frequency.
iYou can only enter frequencies within the
respective waveband.
If a button is not pressed within 4 seconds, the
radio will return to the station last tuned to.
Page 154 of 425

153 Controls in detail
Audio system
Scan tuning
Starting scan tuning
Select desired frequency band.
Press2 button.
SC will appear in the display. The ra-
dio briefly tunes in all receivable
stations on the band selected. The
first scan cycle will tune in only the
stations with a strong signal. The
second scan cycle will tune in every
receivable station.
Ending scan tuning
Press2 button ord, c,
f or ebutton.
SC disappears from the display.Manual station memory (Presets)
You can store ten AM and ten FM stations.
Storing stations
Tune in the desired station.
Press and hold desired station
button4 toM until a brief
signal tone is heard.
The frequency is stored on the
selected station button.
The frequency band and station
button number are shown in the up-
per left-hand corner of the display.
Retrieving a station from memory
Press desired station button4
toM.Automatic station memory (Autostore)
The Autostore memory function provides
an additional memory level. The station
memory for manually stored stations is not
overwritten.
Calling up Autostore memory level
Briefly press theAS key.
AS is highlighted in the display.
The radio finds the ten stations with
the strongest signals. These
stations are stored on the station
buttons4 toM in order of
signal strength.
Retrieving a station from memory
Press desired station button4
toM.
Leaving the Autostore memory level
Press theAS key.
The highlighted
AS in the display
disappears.
Page 156 of 425

155 Controls in detail
Audio system
Track selection
Press theTRK key.
The current track will be displayed as
SIDE 1 or SIDE 2.
You can switch sides at any time.
The side will be changed automatically
at the end of the tape.Cassette eject
Press eject button3.
The display folds down and the cas-
sette is ejected. The system will switch
back to radio mode automatically.
Fold display panel back up and press
gently on the display panel frame to
lock it.Track search
Track search forward
Pressf button.
SEEK FWD will appear in the display.
Track search will run the tape forward
to the start of the next track and switch
to Play.
iA warning signal will sound after 20 seconds
if the display panel is left in the down position.
Fold display panel back up. If the display panel is
not closed, a warning signal will sound and the
radio will be muted.
!Do not press directly on the display face.
Otherwise the display will be damaged.
iThe cassette will not be ejected when the
system is switched off or switched to another
operating mode.
iThe beginning of a track can only be found if
there is pause of at least 4 seconds between
tracks.