2014 MERCEDES-BENZ C-Class key

O
Operation Example ........................................... 20
Overview of controls ...........................12P
Passcode Entering ........................................... 45
Phone book .......................................... 52
Icon overview ................................... 54
Receiving vCards ............................. 52
Playback options ................................. 95R
Radio Autostore ......................................... 63
Entering a frequency ........................62
Overview .......................................... 60
Preset memory ................................ 62
Searching for a station ..................... 61
Selecting a station ...........................61
Storing stations automatically .........63
Storing stations manually ................62
Switching HD Radio on/off ..............61
Switching wavebands ......................61
Radio mode
Switching to ..................................... 60
Rear-compartment screens ................24
Rear Seat Entertainment System Adjusting sound settings .................89
AUX mode ...................................... 101
CD/DVD audio and MP3 mode ........91
Changing the batteries ....................88
Components .................................... 24
Cordless headphones ......................27
Hiding/showing the picture .............91
Multiple users .................................. 90
Operating with the headphones .......89
Remote control ................................ 25
Safety notes ..................................... 91
Selecting the display language ........90
Setting the brightness .....................91
Switching the display design ............ 91
System settings ............................... 90
Video DVD mode ............................. 96
Rear view camera ................................ 38Redial
.................................................... 51
Remote control Switching SmartKey illumination
on/off .............................................. 25 S
Safety notes Audio CD and MP3 mode .................68
Operating safety ................................ 8
SatRadio ............................................... 64
Displaying information .....................67
Registering ....................................... 65
Selecting a category ........................66
Switching to ..................................... 65
Screen
Selecting for remote operation ........25
Switching on/off (Rear Seat
Entertainment System) ....................25
Seats
Adjusting the 4-way lumbar sup-
port .................................................. 36
Massage function ............................ 37
Multicontour seat ............................ 36
Resetting settings ............................ 37
Single call
Functions ......................................... 51
Sound
Balance/fader ................................. 22
Setting balance ................................ 22
Switching on/off .............................. 21
Sound settings ..................................... 21
Speed dial list Storing a phone book entry in the
speed dial lis t................................... 57
Surround sound ................................... 22
Surround sound (harman/kar-
don ®
surround sound system)
Notes ............................................... 22
Switching on/off .............................. 22
Switching HD Radio on/off
see Radio
Switching off ........................................ 21
Switching on ........................................ 20
System settings Date ................................................. 31
Display ............................................. 31
Language ......................................... 336
Index

Operating example
Example: setting the radio station to FM
104.5 MHz.
X Press the 002Abutton once or several
times until the FM FMwaveband appears in the
status bar.
X To switch to the submenu bar: slide
00520064 the controller.
X To highlight Radio
Radioin the submenu bar:
Slide 00950052or turn 00790052007Athe controller. X
To confirm your selection: press0098the
controller.
A selection list with the functions in the
Radio Radio submenu appears. X
To highlight the Enter Frequency
Enter Frequency func-
tion:
Slide 009700520064or turn 00790052007Athe controller.
X To confirm your selection: press0098the
controller. i
Only permissible numbers for the fre-
quency range can be entered in front of the
decimal point. If non-permissible numbers
are entered after the decimal point, the
next lowest frequency is set.
X Press the 0080007F0084 number
keys on the keypad.
The station selected is played. Basic functions of Audio 20
Switching Audio 20 on/off
Overview 0043
Button 0043
0044 Thumbwheel
Switching Audio 20 on X
Press button 0043.
or
X If Audio 20 was on the last time the ignition
was switched off, turn the SmartKey to
position 2 in the ignition lock. 20
Basic functions of Audio 20At a glance

The last main function used is reactivated
after switching on.
Switching Audio 20 off X
Press button 0043.
or
X Turn the SmartKey to position 0 in the igni-
tion lock and remove the SmartKey.
i If you switch off Audio 20, playback of the
current audio source will also be switched
off. Your mobile phone can also no longer
be operated via the Audio 20 system. Switching the sound on or off
Switching the audio source on/off X
Press the 0063button.
The sound from the audio source is
switched on or off.
i When the sound is switched off, you will
see the 006Bsymbol in the status bar.
If you change the audio source or adjust the
volume using thumbwheel 0044, the sound
switches on automatically. Adjusting the volume
Adjusting the volume for the audio
source X
Turn thumbwheel 0044.
or
X Press the 0081or0082 button on the mul-
tifunction steering wheel.
The volume of the audio source currently
selected changes.
Adjusting the volume for phone calls You can adjust the volume for hands-free
mode during a phone call. X
Turn thumbwheel 0044during a phone call.
or
X Press the 0081or0082 button on the mul-
tifunction steering wheel during a tele-
phone call. Adjusting the sound settings
Selecting the sound menu The sound settings can be selected to suit a
variety of different audio sources. You can
access the sound menu for the current audio
source (radio, CD, USB audio, Bluetooth
®
audio, Media Interface, AUX) using the
respective basic menu.
Adjusting treble and bass X
Select Sound Soundusing the controller (slide
0052 0064,009500520096or turn 00790052007A) and press 0098to
confirm.
X Select Treble
Treble orBass
Bass and press 0098to con-
firm. Example: setting the bass
The current setting is indicated by a red nee-
dle.
X
To change the setting: slide009700520064or turn
00790052007Athe controller until the desired treble
and bass levels are set.
When you exit the menu, the current setting
is stored. Basic functions of Audio 20
21At a glance

Remote control
Overview 0043
Switches the screen on/off
0044 Switches the button lighting on/off
0087 Selects the screen for the remote control
0085 Selects a menu or menu item
0083 Confirms a selection or setting
0084 Switches the sound on/off (for corded
headphones)
006B Adjusts the volume (for corded head-
phones)
006C Skips to a track, fast-forward/fast-rewind
006D Selects a track; direct entry
006E Exits a menu (back) Selecting the screen for the remote
control You can use the remote control to operate
one of the two rear screens at a time. To do
so, you must switch the remote control to the
desired screen.
X
To select the left-hand screen: turn
thumbwheel 0087until "L REAR" is high-
lighted in the window.
X To select the right-hand screen: turn
thumbwheel 0087until "R REAR" is high-
lighted in the window.
Switching the screen on/off i
If the SmartKey is in position 0or 1in the
ignition lock (see the vehicle Operator's
Manual), or the SmartKey is not inserted,
the screens in the rear will switch off after
30 minutes.
Before the screens switch off, they show a
message to this effect.
You can switch the screens back on. How-
ever, this will discharge the starter battery.
X Point the remote control at the rear-com-
partment screen which has been selected
for remote operation.
X Press button 0043on the remote control.
The respective rear screen switches on or
off.
i You can only switch the screens on using
the remote control if the ignition is
switched on.
Switching the button lighting on/off X
Press button 0044on the remote control.
Depending on the previous status, the but-
ton lighting is switched on or off.
i If you do not use the remote control for
about 15 seconds, the button lighting
switches off automatically. Rear Seat Entertainment
25At a glance

Audio system features
.......................30
System menu ...................................... 30
Switching the display on/off .............30
Display settings .................................. 31
Time settings ....................................... 31
Favorites button (asterisk key) .........32
Bluetooth ®
settings ............................ 32
System language settings ..................33
Reset function ..................................... 33 29System settings

X
To set the date: slide006400520097or turn
00790052007Athe controller and press 0098to con-
firm. Setting the format
X Select Format
Format by sliding 00970052or turning
00790052007Athe controller and press 0098to con-
firm. i
You can set the format for the date and
time separately.
X To set the date/time format: slide
0064 00520097or turn 00790052007Athe controller and
press 0098to confirm. Favorites button (asterisk key)
i You can assign a function from the favor-
ites menu to the favorites button (star but-
ton) on the controller. X
To call up the basic menu: press0066.
X Switch to the submenu bar by sliding 00520064
the controller.
X Select Settings
Settings using the controller (slide
00950052 or turn 00790052007A) and press 0098to confirm.
X Select Assign as Favorite Assign as Favorite by sliding
009700520064 the controller and press 0098to con-
firm. Favorites menu (example: vehicle with a favorites
button)
X
Select the desired function by sliding
009700520064 the controller and press 0098to con-
firm.
The selected function is assigned to the
favorites button.
i If your vehicle has two favorites buttons,
you can assign a function to each favorites
button. The favorites menu will then have
an additional submenu where you can
choose the favorites button to which you
want to assign a function. Bluetooth
®
settings General information about Blue-
tooth
®
Bluetooth ®
technology is a standard for
short-range wireless data transmissions up to
approximately 10 meters. The Bluetooth ®
function must be activated in the Audio 20
system in order to call using hands-free mode
and to receive electronic business cards
(vCards). 32
Bluetooth ®
settingsSystem settings

Audio system features
i These Operating Instructions describe all
standard and optional equipment available
for your audio device at the time of going
to print. Country-specific deviations are
possible. Please note that your audio equip-
ment may not offer all the features descri-
bed. General notes
Important safety notes
G
WARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicle
is stationary.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is cov-
ering a distance of 44 feet (approximately
14 m) every second.
If you make a call on your mobile phone while
driving, always use hands-free mode. Only
use the mobile phone when road, weather
and traffic conditions permit. Introduction
Audio 20, in conjunction with a Bluetooth ®
-
capable mobile phone, enables you to make
calls via the Bluetooth ®
interface. Using the
Bluetooth ®
interface and a suitable mobile
phone, you can use the Audio 20 hands-free
facility and receive vCards.
With a suitable mobile phone, you can use the
hands-free system via the Bluetooth ®
inter-
face. You can also import contacts from the
mobile phone via PBAP (Phone Book Access
Profile) and receive vCards.
You can obtain more detailed information
about suitable mobile phones and about con- necting Bluetooth
®
-capable mobile phones
from your authorized Mercedes-Benz Center.
You can also obtain information via the Inter-
net at http://www.mbusa-mobile.com (for
customers in the USA only). Call disconnection while the vehicle is
in motion
A call may be disconnected if:
R there is insufficient network coverage in
certain areas.
R you move from one transmitter/receiver
area (cell) into another and no channels are
free.
R you use a SIM card which is not compatible
with the network available.
R you are using a mobile phone with "Twin-
card" and the mobile phone with the sec-
ond SIM card is already logged into the net-
work. Operating options
You can operate the telephone by using the
following controls:
R Audio 20 controller
Turn 00790052007A
Slide 009500520096 or009700520064
Press 0098
R the 0061 or0076 button and the number
keypad on Audio 20
R using the 0061or0076 button on the mul-
tifunction steering wheel
All descriptions and illustrations in this sec-
tion refer to the Audio 20 operating system
unless stated otherwise. 42
General notesTelephone

Sym-
bol Explanation
00DC
Mobile phone in range and
authorized 00DC
(gray)
Mobile phone not in range, but
already authorized
The Bluetooth
®
telephone list shows all
mobile phones within range and all previously
authorized mobile phones, whether or not
they are in range.
i If the Bluetooth ®
telephones list is already
full, you will be requested to de-authorize a
mobile phone (Y page 47). If Audio 20
does not find your mobile phone, external
authorization (Y page 46) may be neces-
sary.
i If you call up the telephone list again, the
unauthorized devices are removed from the
list. To update the Bluetooth ®
telephone
list, start a new search.
Authorizing a mobile phone X
Select the mobile phone that is not yet
authorized from the Bluetooth ®
phone 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 Authorize Authorize and press0098to confirm.
The input menu for the passkey appears. The passkey is any one to sixteen-digit num-
ber combination which you can choose your-
self. You must enter the same number com-
bination in Audio 20 and in the Bluetooth
®
-
capable mobile phone (see the mobile phone
operating instructions).
i Some mobile phones require a passkey
with four or more digits.
If you reauthorize a mobile phone following
deauthorization, you can select a different
passkey.
X To enter a passkey in Audio 20: press the
number keys in succession.
0054is highlighted after the first number
has been entered.
or
X Select the numbers one after another by
turning 00790052007Athe controller and press 0098
to confirm. Then, select 0054.
X To confirm an entry in Audio 20: press
0098 the controller.
X Now enter the same passkey in the mobile
phone.
To make entries on the mobile phone: if
the Bluetooth ®
connection is successful, you
will be requested to enter the passkey
(access code, passcode), see the mobile
phone operating instructions.
X Enter the same passkey in the mobile
phone as already entered in Audio 20.
i After entering the passkey, you may also
need to enter a confirmation in your mobile
phone to connect calls. Please check your
mobile phone display.
If the Audio 20 display shows the Author‐
Author‐
ization failed ization failed message, you may have
exceeded the prescribed time period.
Repeat the procedure.
The mobile phone is connected to Audio 20
(authorized). You can now use the Audio 20
hands-free function to make calls on your
mobile phone. Telephony via the Bluetooth
®
interface 45Telephone Z