GWarning!
In order to avoid distraction which could lead
to an accident, the driver should enter system
settings with the vehicle at a standstill 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 vehicle is
covering a distance of 44 feet (approximately
14 m) every second.
Audio system overview
Item:Audio display (Y page 139);Opening button (Y page 139)=Audio control unit (Y page 138)Item?Clear button (Y page 142)AAudio controller (Y page 140)BBack button (Y page 141)
Operating safety
GWarning!
Any alterations made to electronic
components can cause malfunctions.
The radio, amplifier, CD changer, satellite
radio, 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 impaired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out at
an authorized Mercedes-Benz Center.
Audio system components
With the audio system you can operate the
following main functions:
RAudio function with the radio, Satellite
radio, disc (CD audio or MP3 mode) and
Audio AUX
Rthe mobile phone with the phone book
Rvarious system settings
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The audio system consists of the following:
RAudio control unit
RAudio display
RAudio controller with buttons k and
2
In addition, the audio system can also be
operated with the multifunction steering
wheel (Y page 118).
In these instructions, the keypad (right side
of audio control unit) and the function buttons
are referred to as “buttons”.
Audio control unit
With the audio control unit you can
Rswitch the audio system on/off
Radjust the volume
Rselect the operating modes
Renter telephone numbers and accept,
reject, initiate and end telephone calls
Rload and eject CDs
Audio control unit overviewItem:Switching to radio mode
(Y page 149)
Calling up wave bands
(Y page 149)
Switching on Sat mode
(Y page 154)
;Switching to CD audio or MP3 mode
(Y page 158)
=Disc slot?Load/eject button (Y page 161)AClear button for deleting digits or
entire entries (Y page 178)
Entering a passcode (Y page 171)
Entering a telephone number
(Y page 177)
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XOpening: Press opening button :.
Audio display cover ; opens, the audio
display is visible, and the audio system
switched on.
XClosing: Press audio display cover ;
down until it engages.
If the audio system is still switched on, you
can continue to listen to the radio or a CD
and operate the device via the buttons on
the audio control panel as well as the
buttons on the multifunction steering
wheel.
iYou cannot operate the audio system via
the audio controller when audio display
cover ; is closed.
Display
The currently selected mode and the
associated menus are shown on the audio
display. The audio display is divided into
several areas.
Example illustration: Radio selected
Status line = displays the time and the
current settings for radio and telephone
mode.
You can request the required function using
menu bar :.
The selection is made using the audio
controller.
Mobile phone readiness is indicated by
additional information being shown in the
status line:
RIn the telephone main menu: Name of the
Bluetooth® device (calls made and
received via the Bluetooth® interface)
(Y page 172).
RMobile phone network signal strength
r. This information will only be shown
with suitable mobile phones.
RThe receiver symbol indicates whether a
call is active or not.
¢ No active call
ö Active call
In this example, the audio main function is set
to the FM radio mode and main area ; is
active.
iThe layout of the menus may vary
depending on your vehicle’s equipment.
This manual shows the menus for a fully
equipped vehicle.
Instrument cluster multifunction
display
Please refer to the “Control system” section
of this manual (Y page 118) for function
descriptions and operation of the instrument
cluster multifunction display and
multifunction steering wheel buttons as they
relate to audio functions described in this
section.
Audio controller
The menu functions are selected on the audio
display using audio controller :. For this
purpose, a selected item is highlighted.
In this way, you can open menus or lists, move
within menus or lists, and quit menus or lists.
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Clear button XDeleting an individual digit: Briefly press
button 2.
XDeleting an entire entry: Press and hold
button 2 until the entry is deleted.
Menu
The table below shows the structure of the
modes and their menus. Each mode has a
basic menu. Each menu item in turn has
several submenu items.
ButtonMode/Menu$Radio modeRadio (FM/AM) (Y page 148)Weather Band (Y page 149)Satellite radio (Y page 152)Presets (Y page 151)Sound (Y page 145)hDisc modeCD/MP3 (Y page 158)Track list/folder list
(Y page 165)
CD Changer (Y page 162)Sound (Y page 145)%Telephone modeButtonMode/MenuTelephone (Y page 167)Name (Y page 174)Call lists (Y page 176)iSystem settings menuSystem (Y page 147)Language (Y page 148)
Calling up an operating mode
XPress the respective button ($, h,
%, or i) on the audio control unit.
The basic menu of the selected mode
appears in the audio display. The main area
is active. The active area is highlighted.
iThe following screens show the audio
display’s day design. The appearance of the
highlighted items in the menu will vary
depending on the display design.
Illustration: Radio function basic menu
XMoving to the menu bar: Slide VÆ.
Horizontal menus
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XMoving through the menu bar: Slide
XVY or rotate cVd.
The currently selected item is highlighted.
XConfirming the selected menu item:
Press W.
XExiting the menu bar without
confirming a selection: Slide ZV in the
opposite direction of the list orientation.
or
XPress button k.
Vertical submenus
XMoving through the submenu: Slide
ZVÆ or rotate cVd.
The currently selected item is highlighted.
XConfirming the selected submenu
item: Press W.
XExiting the submenu without
confirming a selection: Slide XVY in the
opposite direction of the list orientation.
or
XPress button k.
Example of how to use the audio system
Example: direct frequency input,
FM 104.5 MHz.
$ Q Radio Q Enter Frequency
The individual steps for the above-mentioned
example are described below.
XPress button $ on audio control unit
repeatedly until desired wave band FM has
been selected.
XSwitching to the menu bar: Slide VÆ.XSelecting Radio in the menu bar: Slide
XV or rotate cVd.
XConfirming selection: Press W.
The Radio menu is selected and a list of
submenus appears.
XEnter Frequency is selected.XConfirming selection: Press W.
The Enter Frequency submenu appears.
iIt is not possible to enter a frequency in
the respective wave band which is outside
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the frequency range. Frequencies within
the current frequency range, but outside
the current frequency step width are
rounded to the next lower allowed
frequency.
XEnter 1045 with the keypad on the audio
control unit.
The audio system tunes in to the frequency
entered.
Operation
In the following description, an operation step
is described as in the example below.
X$ Q Radio Q Enter Frequency
is the short for
XPress button $ on audio control unit
repeatedly until desired wave band has
been selected.
XSlide VÆ.XSlide XV or rotate cVd the audio
controller to select Radio.
XPress the audio controller W.
The Radio menu is selected and a list of
submenus appears.
XSlide ZV or rotate cVd the audio
controller to select Enter Frequency.
XPress the audio controller W.
The Enter Frequency submenu appears
in the audio display.
Switching audio system on or off
XSwitching on: Press push button q.
or
XOpen the audio display cover.
or
XIf the audio system was on as you switched
off the ignition, turn the SmartKey in the
starter switch to position 1.
The audio system will come back on with
the last selected function.
iIf the audio system is switched on without
the SmartKey in the starter switch, it will
automatically switch off again after
approximately 30 minutes.
XSwitching off: Press push button q.
or
XTurn the SmartKey in the starter switch to
position 0 and remove SmartKey from
starter switch.
iShould excessively high temperatures
occur while the audio system is being
operated, Temperature Too High -
Device switching off now. will appear
in the audio display, after which the audio
system will be switched off for a cooling-
down period.
iWhen you switch off the audio system,
you also switch off the currently playing
audio source. Also, telephone operation via
the audio control unit is not possible.
Adjusting volume
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Adjusting balance and fader
XChanging setting: Slide ÆVZ or XVY until
desired balance/fader setting is achieved.
XExiting menu: Press W or button k.
The balance/fader setting is stored for all
audio sources.
Surround sound
If your vehicle is equipped with the harman/
kardon Logic 7® Surround Sound system, you
can choose between Logic7® On and
Logic7® Off for surround sound.
harman/kardon Logic 7® Surround Sound is
available for the following operating modes:
RRadio (FM only)
RSatellite radio
RCD audio
RMP3
RAUX
iBy selecting Logic7® Off, all compatible
formats are played back as they are
present on the medium.
Adjusting surround sound
With surround sound, you can choose
between Logic7® On and Logic7® Off.
XPress button J repeatedly until Sound
appears in the audio display.
or
XSelect Sound Q Sound.
A dot # indicates the current setting.
XSelecting setting: Slide ÆVZ or rotate
cVd.
XSaving setting: Press W.
The setting is stored and the menu is
exited.
XExiting menu without saving: Press
button k or slide XVY.
iBalance and fader will be set to the default
value (0/0) automatically by activating or
deactivating Logic 7®.
iPlease note the following:
RFor an optimal sound experience from all
seats, the balance and fader should be
adjusted to the center of the passenger
compartment with Logic 7® switched on.
RThe best sound results are achieved
when playing high-quality audio CDs.
RFor MP3 tracks, the bit rate should be at
least 128 kbit/s.
RSurround playback cannot be activated
in mono-signal sources as AM or
Weatherband. It will not function for
mono-signal sources as, e.g. mono audio
tracks on some specific audio CDs.
RIn the case of poor radio reception
quality, e.g. during long tunnel passages,
Logic 7® should be switched off, as
otherwise a dynamic switchover from
stereo to mono and thus temporary
sound characteristic shifts can occur.
RWith certain stereo recordings, the
resulting sound characteristic may
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Xi Q System Q Reset.
A prompt appears asking whether you
really want to reset.
XSelect Yes or No.
If you select Yes another prompt will
appear asking whether you really want to
reset.
XSelect Yes or No.
If you select Yes, the audio system will be
reset and restarted.
Setting the system language
Xi Q Language.
The language list appears. A dot # in front
of an entry indicates the current setting.
XChanging setting: Slide ÆVZ or rotate
cVd and select desired language.
XSaving setting: Press W.
The setting is stored and the menu is
exited.
XExiting menu without saving: Press
button k or slide XVY.
iThe language selected in the Audio
system is also used for the displays and
messages in the multifunction display.
Radio operation
GWarning!
Please devote your attention first and
foremost to the traffic situation you are in.
Before your journey, please familiarize
yourself with the radio functions.
Only use the audio system when road and
traffic conditions permit you to do so.
Otherwise you could be involved in an
accident in which you or others could be
injured.
! Do not attach metallic window tinting film
to the inside or outside of windows which
are fitted with an aerial. Obstructing the
metallic aerial structure on the window will
interfere with radio reception. Cutting the
film on the window can permanently
damage the aerial wires.
iThe radio mode is interrupted by an
incoming call on the mobile phone
(Y page 167).
Menu overview
iThe components and operating principles
of the audio system can be found on
(Y page 137) and (Y page 143). Information
about sound settings can be found on
(Y page 145).
MenuFunctionRadio
(except Weather
Band/satellite
radio)
Enter frequencyStation information
(in FM wave band
only)
Presets
(except Weather
Band)
Autostore (except
satellite radio)
List of stored
stations
InfoInformation menu (if
available)
Channel
(only Weather Band)
List of channelsSoundTrebleBass148Audio systemControls in detail
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