2008 MERCEDES-BENZ C300 4MATIC Owner's Manual

184 Controls in detail
Audio system
Back button
1 Back buttoníSwitching to the next highest menu:
Press buttoní briefly.
The audio system switches to the next
highest menu level within the currently
active mode.
Switching to the main menu: Press
and hold buttoní.
The audio system switches to the basic
menu of the currently active mode.Clear button
1Clear buttonî
To delete an individual character:
Briefly press the buttonî.
To delete an entire entry: Press and
hold the buttonî until the entry is
deleted.
iYou can also exit a menu or list by sliding the
audio controller
ompor qmr.

185 Controls in detail
Audio system
Menu
The illustration below shows the structure
of the modes and their menus.Each mode has a basic menu. In the menu
line of the basic menu display are several
menu items listed.Each menu item in turn has several sub-
menu items.
ButtonMode/Basic menuMenuPage
bRadioRadio (FM/AM)194
Weather Band194
Sat Radio*200
Presets198
Sound189
éDiscCD/MP3208
Track list/folder list219
CD changer*214
Sound189
hTelephone*Telephone*222
Name233
Call lists236
êSystemSystem192
Language193

186 Controls in detail
Audio system
Calling up an operating mode
Press the respective button
(b,é,h,orê) 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.
Illustration: radio function basic menu
Moving to the menu bar: Slidemr.Horizontal menus
Moving through the menu bar:
Slideomp or rotate ymz.
A white bar under the menu indicates
the selected menu.
Confirm the selected menu item:
Press n.
Exiting the menu bar without con-
firming a selection: Slide qmin the
opposite direction of the list orienta-
tion.
or
Press buttoní.Vertical submenus
Moving through the menu:
Slideqmr or rotate ymz.
A white bar under the submenu indi-
cates the selected submenu.
Confirm the selected submenu
item: Press n.
Exiting a menu without confirming a
selection: Slide ompin the opposite
direction of the list orientation.
or
Press buttoní.
iThe following screens show the audio dis-
play's day design. The appearance of the high-
lighted items in the menu will vary depending on
the display design.

187 Controls in detail
Audio system
Example of how to use the audio
system
Example: direct frequency input,
FM 104.5 MHz.
In the descriptions below, the mode always
serve as the starting point for locating the
individual menu items.
Example:
b

Radio
Enter Frequency
The individual steps for the above-men-
tioned example are described below.
Press buttonb on audio control
unit repeatedly until desired waveband
FM has been selected.
Switching to the menu bar:
Slidemr.
Selecting “Radio” in the menu bar:
Slideomor rotate ymz.
Confirming selection: Press n.
The
Radio menu is selected and a list of
submenus appears.
Selecting “Enter Frequency” in the
“Radio” menu: Slidemr.
Confirming selection: Press n.
The
Enter Frequency submenu ap-
pears.
Enter 1045 with the keypad on the au-
dio control unit.
The audio system tunes in to the
frequency entered.
iIt is not possible to enter a frequency in the
respective waveband which is outside the fre-
quency range. Frequencies within the current
frequency range, but outside the current fre-
quency step width are rounded to the next lower
allowed frequency.

188 Controls in detail
Audio system
Operation
In the following descriptions, an operation
step is described as in example below.
b
Radio
Enter Frequency
is the short for
Press buttonb on audio control
unit repeatedly until desired waveband
has been selected.
Slidemr.
Slideomor rotate ymz the audio con-
troller to select
Radio.
Press the audio controller n.
The
Radio menu is selected and a list of
submenus appears.
Slideqmor rotate ymz the audio con-
troller to select
Enter Frequency.
Press the audio controller n.
The
Enter Frequency submenu is
selected and appears in the audio
display.Switching audio system on or off
Rotary control/push buttono
1Push buttono
2Rotary control
Switching on: Press push
buttono.
or
Open the audio display cover.
or
If the audio system was on as you
switched off the ignition, turn the
SmartKey in the starter switch to
position2.The audio system will come back on
with the last selected function.
Switching off: Press push
buttono.
or
Turn the SmartKey in the starter switch
to position0.
iIf the audio system is switched on without
the SmartKey in the starter switch, it will
automatically switch off again after
approximately 30 minutes.
If your vehicle is equipped with a telephone*, the
audio display may prompt you to enter your PIN
(GSM network) or passcode (CDMA network).
iShould excessively high temperatures occur
while the audio system is being operated,
HIGH TEMP 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
and the telephone* operating via audio control
unit is not possible.

189 Controls in detail
Audio system
Adjusting volume
Rotary control/push buttono
1Push buttono
2Rotary control
Adjusting: Turn rotary control2.
The volume will increase or decrease
depending on the direction turned.Adjusting volume for telephone calls
In hands-free mode, you can adjust the vol-
ume of a telephone call while the call is
currently active.
During a telephone call:
Turn rotary control2.
The volume will increase or decrease
depending on the direction turned.
Sound
To switch on/off: Press button F
on the audio control unit (
page 177).
The sound of the current audio source
is switched on or off.Selecting sound settings
You can select different sound settings for
each individual audio source. The particu-
lar
Sound menu can be opened from the
basic menu for the desired operating
mode, or by pressing the TONE button on
the audio control unit.
Example:
b

Sound
Bass
Adjusting bass or treble
Press TONE button repeatedly until
Bass or Treble appears in the audio
display.
or
Select Sound
Bass or Treble.
The setting last selected is indicated by
an red pointer.
iThe volume of the audio system or a tele-
phone call can also be adjusted by pressing the
æ or ç button on the multifunction steer-
ing wheel (
page 158).
iWhen the sound is switched off, the
symbolF appears in the status line.
If you change the audio source, or alter the vol-
ume, the sound is automatically switched on
again.


190 Controls in detail
Audio system
Example Bass
To change setting: Slide rmq or
rotateymz until desired treble or bass
setting is reached.
To save setting: Press n.
The setting is stored and the menu is
exited.
To exit menu without saving: Press
button í or slideomp.Adjusting balance or fader
Balance is used to determine whether the
sound focus should be shifted toward the
driver’s side or the passenger’s side.
Fader is used to determine whether the
sound focus should be shifted toward the
front or rear of the vehicle
Select Sound
Bal/Fad.
The current setting is indicated by an
red cross-hair symbol.
Adjusting balance and fader
To change setting: Slide rmq or omp
until desired balance/fader setting is
achieved.
To save setting: Press n.The setting is stored and the menu is
exited.
To exit menu without saving: Press
button í.
Surround sound* (Canada only)
If your vehicle is equipped with the har-
mann/kardon LOGIC7
® Surround Sound
system, you can choose between
LOGIC7®
On
and LOGIC7® Off for surround sound.
Harman/kardon LOGIC7
® Surround Sound
is available for the following operating
modes:

Radio (FM only)

Sat*

CD audio

MP3

AUX


191 Controls in detail
Audio system
Adjusting surround sound
With surround sound, you can choose be-
tween
LOGIC7® On and LOGIC7® Off.
Select Sound
Sound.
A dot R indicates the current setting.
To select a setting: Slidermq or
rotateymz.
To save setting: Press n.
The setting is stored and the menu is
exited.
To exit menu without saving: Press
button í or slideomp.
iThe LOGIC7® On function of the
harman/kardon LOGIC7® Surround Sound sys-
tem permits the playback of discrete 5.1 and ste-
reo recordings with an optimal surround sound
platform for each passenger.
The LOGIC7
® distributes the 5.1 surround infor-
mation over the 13-channel system architecture
to provide the optimum sound experience from
all seats. This produces the sound characteristic
as intended by the sound engineer during the
original recording.
Harman/kardon LOGIC7
® converts all two-chan-
nel stereo sound material into multi-channel sur-
round sound. The surround information stored
during the original recording is read out using
LOGIC7
® and likewise distributed over the
13 channels. No effects are created during this
process; only that which was already there be-
comes audible.
In addition, harman/kardon LOGIC7
® moves the
perceived sound source away from the individual
loudspeakers, thus generating a natural 360°
sound experience for each passenger.
iBy selecting LOGIC7® Off, all compatible
formats are played back as they are present on
the medium. Due to the vehicle’s spatial charac-
teristics, an optimal sound experience is not en-
sured from all seats.
iBalance and fader will be set to the default
value (0/0) automatically by activating or deacti-
vating LOGIC7
®.
iPlease note the following:

For an optimal sound experience from all
seats, the balance and fader should be ad-
justed to the center of the passenger com-
partment with LOGIC7
® switched on.

The best sound results are achieved when
playing high-quality audio CDs.

For MP3 tracks, the bit rate should be at
least 128 kbit/s.

Surround 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.

In the case of poor radio reception quality,
e.g. in tunnels, LOGIC7® should be switched
off, as otherwise a dynamic switchover from
stereo to mono and thus temporary sound
characteristic shifts can occur.

With certain stereo recordings, the resulting
sound characteristic may deviate from con-
ventional stereo playback.