2014 MERCEDES-BENZ C-Class turn signal

X
To select a setting: slide009700520064or turn
00790052007Athe controller.
X To save a setting: press0098the controller.
The setting is stored and you exit the menu.
i The balance setting is automatically reset
to the default value (0) when Logic 7 ®
is
switched on or off.
i Please bear the following in mind:
R To provide the optimum audio experi-
ence for all passengers when Logic 7 ®
is
switched on, the balance should be set
to the center of the passenger compart-
ment.
R MP3 tracks should have a bit rate of at
least 128 kbit/s.
R Surround-sound playback does not func-
tion for mono signal sources, such as the
medium wave range (MW) in radio mode.
R If radio reception is poor, e.g. in a tunnel,
you should switch off Logic 7 ®
. Other-
wise, it may switch between stereo and
mono and cause temporary sound dis-
tortions.
R On some stereo recordings, the sound
characteristics may differ from conven-
tional stereo playback. Basic functions of Audio 20
23At a glance

Cordless headphones
Overview 0043
Volume control
0044 Selects a screen for the headphones
0087 Battery compartment cover
0085 Switches the cordless headphones on/off
0083 Indicator lamp with various displays (Y page 27)
X Open both sides of the headphones and adjust the fit of the headphones by pulling the
headphone band in the direction of the arrow.
Switching the cordless headphones
on/off X
Press button 0085.
Depending on the previous status, the
headphones are switched on or off.
To save the battery, the headphones are
switched off automatically if they do not
receive an audio signal within three
minutes.
Adjusting the volume of the head-
phones X
Turn volume control 0043until the desired
volume has been set.
i If you have connected corded head-
phones to a rear-compartment screen, you can adjust the volume by pressing buttons
006B on the remote control (Y page 25).
Selecting a screen for the headphones X
Move push slider 0044toL(left-hand screen)
or R(right-hand screen).
Indicator lamp displays The color of the indicator lamp shows
whether the headphones are switched on or
off and indicates the charge level of the bat-
teries inserted. Rear Seat Entertainment
27At a glance

your mobile phone (see the mobile phone
operating instructions).
i Not all mobile phones available on the
market are equally suitable. You can obtain
more detailed information about suitable
mobile phones and about connecting Blue-
tooth ®
-capable mobile phones to Audio 20
on the Internet at
http://www.mbusa-mobile.com. Or call
the Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372 )(for the USA) or Cus-
tomer Relations at 1-800-387-010 0(for
Canada).
i Some displays (e.g. the signal strength)
depend on the supported version of the
Hands-Free Profile. Connecting a mobile phone
General information Before using your mobile phone with Audio 20
for the first time, you will need to authorize it.
Device-specific information on connecting
Bluetooth ®
-capable mobile phones can be
found on the Internet at http://
www.mbusa-mobile.com . Or call the
Mercedes-Benz Customer Assistance Center
at 1-800-FOR-MERCedes (1-800-367-6372)
(for the USA) or Customer Relations at
1-800-387-010 0(for Canada).
When you authorize a new mobile phone, it is
connected automatically.
Connecting comprises:
R searching for a Bluetooth ®
-capable mobile
phone
R subsequently authorizing it
You can authorize up to 15 mobile phones.
During connection, the phone book, call lists
and text messages are automatically down-
loaded to Audio 20. This function must be
supported by the connected mobile phone.
You can suppress the automatic download of telephone data by deactivating the "Import
contacts" function (Y
page 55).
Searching for a mobile phone X
Press the 002Bbutton on Audio 20.
X Select Connect Device
Connect Device in the telephone
basic menu using the controller (slide
0052 0064and turn 00790052007A) and press 0098to con-
firm. X
Select Search Search for
forPhone
Phone and press 0098to
confirm.
A message appears.
X Select Start Start Search
Search and press 0098to con-
firm.
Audio 20 scans for Bluetooth ®
devices
within range and enters them into the Blue-
tooth ®
phone list.
If a new phone is found, it appears in the
list with the 00D3symbol.
The duration of the search depends on the
number of Bluetooth ®
telephones within
range and their characteristics.
Symbols in the Bluetooth ®
phone list Sym-
bol Explanation
00D3
New mobile phone in range, but
not yet authorized
0068
Authorized mobile phone
0036
Currently connected mobile
phone44
Telephony via the Bluetooth ®
interfaceTelephone

Telephone basic menu (Bluetooth
®
interface)
X Press the 002Bbutton.
If the connected telephone is ready for use,
the following display appears (example): 0043
Telephone status
0044 Signal strength of mobile phone network
Ä
0087 Receiver icon 0071or0075
0085 To display call lists
0083 Character bar
0084 Bluetooth ®
name of the currently con-
nected mobile phone
006B To display the Audio 20 phone book
X Press 002B.
When the connected mobile phone is ready
for use, the telephone basic menu appears.
i Bars 0044show the current signal strength
of the mobile phone network. If all bars are
filled, you have optimum reception.
If no bars are shown, reception is either
very poor or there is none at all.
The receiver symbol shows whether a call
is active/being connected 0075or not 0071.
Text message display in the telephone
basic menu The
Text Message Text Message menu item is only availa-
ble if the Bluetooth ®
phone supports the MAP
Bluetooth ®
profile ( Message AccessProfile).
The downloading of text messages from the
Bluetooth ®
phone must have been com- pleted. The menu item is otherwise grayed
out.
If you have an unread text message, the
0083
mail symbol is displayed. The symbol disap-
pears once you have read the text message.
The ú mail symbol is displayed as soon as
the text message memory is full. The symbol
disappears once you delete at least one text
message.
You can deactivate the automatic download
function for text messages stored in the
phone (Y page 55).
You can choose not to display the stored text
messages by activating the "Hide data" func-
tion (Y page 55). Reception and transmission volume
Once the mobile phone has been authorized,
you can optimize the transmission and recep-
tion volume settings. Find information on the
optimal setting for your mobile phone on the
Internet at
http://www.mbusa-mobile.com. Or call
the Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372) (for the USA) or Customer
Relations at 1-800-387-010 0(for Canada).
i Incorrect settings may have an impact on
the quality of calls.
X Press 002B.
X Select Phone
Phone from the telephone basic
menu by turning 00790052007Athe controller and
press 0098to confirm.
X Select Connect Phones Connect Phones and press0098to
confirm.
X Select an authorized mobile phone from
the list by turning 00790052007Athe controller.
X Select the list symbol to the right of the
entry by sliding 00520096the controller and
press 0098to confirm.
X Select Reception Volume
Reception Volume orTransmis‐ Transmis‐
sion Volume
sion Volume and press0098to confirm. 48
Reception and transmission volumeTelephone