2014 MERCEDES-BENZ C-Class light

ation is subject to the two following two con-
ditions: 1) These devices may not cause
harmful interference, and 2) These devices
must accept any interference received,
including interference that may cause unde-
sired operation. Changes or modifications not
expressly approved by the party responsible
for compliance could void the user’s authority
to operate the equipment."
Canada: "The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the
following two conditions: (1) These devices
may not cause interference, and (2) These
devices must accept any interference, includ-
ing interference that may cause undesired
operation of the device." Audio system features
These Operating Instructions describe all
standard and optional equipment available
for your audio device at the time of going to
print. Country-specific differences are possi-
ble. Please note that your audio equipment
may not offer all the features described. This
also applies to safety-relevant systems and
functions. The equipment in your vehicle may
therefore differ from that shown in the
descriptions and illustrations.
The original purchase agreement lists all sys-
tems installed in your vehicle. Contact an
authorized Mercedes-Benz Center if you have
any questions about equipment or operation. Function restrictions
For safety reasons, some functions are
restricted or unavailable while the vehicle is
in motion. You will notice this, for example,
because you will not be able to select certain
menu items. Data stored in the vehicle
A wide range of electronic components in
your vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
R The vehicle's operating state
R Incidents
R Malfunctions
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example:
R operating conditions of system compo-
nents, e.g. fluid levels
R the vehicle's status messages and those of
its individual components, e.g. number of
wheel revolutions/speed, deceleration in
movement, lateral acceleration, accelera-
tor pedal position
R malfunctions and defects in important sys-
tem components, e.g. lights, brakes
R vehicle reactions and operating conditions
in special driving situations, e.g. air bag
deployment, intervention of stability
control systems
R ambient conditions, e.g. outside tempera-
ture
This data is of an exclusively technical nature
and can be used to:
R assist in recognizing and rectifying mal-
functions and defects
R analyze vehicle functions, e.g. after an acci-
dent
R optimize vehicle function
The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data mem-
ory and malfunction data memory.
Services include, for example:
R repair services
R service processes Introduction
9 Z

Operating Audio 20
Selecting menus
Basic menu X
Press the appropriate 002A,003A,002Bor
0066 button.
The basic menu of the respective function
is shown. The main area is active.
The active area is highlighted.
i The following pictures show the display in
daytime design (Y page 31). The menu
highlighting appearance is different
depending on the display design. Switching from the display window to the
submenu bar
X Slide 00520064the controller.
Horizontal menus Navigating within a menu
X
Slide 009500520096or turn 00790052007Athe controller.
The menu item selected is highlighted in
white. Selecting a menu item
X
Press 0098the controller.
Exiting a menu without making a selec-
tion
X Slide 00970052the controller in the opposite
direction to the direction of the list.
or
X Press the 003Dback button on the control-
ler.
Vertical menus Navigating within a menu
X
Slide 009700520064or turn 00790052007Athe controller.
The menu item selected is highlighted in
white.
Selecting a menu item
X Press 0098the controller.
Exiting a menu without making a selec-
tion
X Slide 009500520096 the controller in the opposite
direction to the direction of the list.
or
X Press the 003Dback button on the control-
ler. Operating Audio 20
19At a glance

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

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
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. System menu
Calling up the System basic menu
X Press 0066.
or
X Select System
System from the main function bar
using the controller (slide 00520064,009500520096or
turn 00790052007A ) and press 0098to confirm. Full screen display
X With the menu item Full Screen Full Screenhigh-
lighted, press 0098the controller.
The main function bar and the submenu bar
disappear.
X To make the main function bar and sub-
menu bar reappear: press0098the control-
ler. Changing the screen
You can change the screen to display either
the clock or the consumption indicator.
X Slide 009500520096or turn 00790052007Athe controller.
The display changes. Switching the display on/off
X To call up the basic menu: press0066.
X Switch to the submenu bar by sliding 00520064
the controller.
X Select Display Display Off
Offby sliding 00520096the con-
troller and press 0098to confirm.
X To switch the display on again: press
0098.
or
X Press 0041.
i You can also press one of the function
buttons, such as the 003Abutton, to dis-
play the relevant basic menu. 30
Switching the display on/offSystem settings

Display settings
Display design
You can adjust the brightness of the display
to suit the prevailing ambient light.
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
009500520096 or turn 00790052007A) and press 0098to confirm.
X Select Display Display and press 0098to confirm.
X Select Brightness
Brightness, Day Mode
Day Mode,Night
Night
Mode
Mode orAutomatic
Automatic and press0098to con-
firm.
i If you select Brightness
Brightness, an adjustment
scale appears which you can use to adjust
the brightness manually.
When the Automatic Automatic setting is selected,
Audio 20 evaluates the readings from the
automatic vehicle light sensor and
switches between the display designs auto-
matically. Time settings
Accessing the date/time settings
menu
X To call up the basic menu: press0066.
X Switch to the submenu bar by sliding 00520064
the controller.
X Select Time
Time by sliding 009500520096or turning
00790052007Athe controller and press 0098to con-
firm. Setting the time
X Select Set Time
Set Time by sliding00970052or turning
00790052007Athe controller and press 0098to con-
firm. X
To set the time: slide006400520097or turn
00790052007Athe controller and press 0098to con-
firm. Setting the date
X Select Set Date
Set Date by sliding00970052or turning
00790052007Athe controller and press 0098to con-
firm. Time settings
31System settings

X
Select Yes
YesorNo
No and press 0098to confirm.
If you select No
No, the process will be can-
celed.
After you select Yes
Yes , all seat adjustments
are reset to the default values (factory set-
ting). Rear view camera
Important safety notes
The rear view camera is only an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering and park-
ing. When maneuvering or parking, make sure
that there are no persons, animals or objects
in the area in which you are maneuvering.
Under the following circumstances, the rear
view camera will not function, or will function
in a limited manner:
R the tailgate is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the camera is exposed to very bright light
R if the area is lit by fluorescent light or LED
lighting (the display may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in
winter
R if the camera lens is dirty or obstructed
R if the rear of your vehicle is damaged. In
this event, have the camera position and setting checked at a qualified specialist
workshop. Activating/deactivating the display
If your vehicle is equipped with a rear view
camera, you can choose to have the rear view
camera switch on automatically. When you
engage reverse gear, the image from the rear
view camera will then be shown automatically
on the Audio display. After completion of the
maneuver, the audio display returns to the
previous screen.
i Further information on the rear view cam-
era driving system can be found in the vehi-
cle Operator's Manual.
X Press the 0066function button.
The system menu appears.
X Select Settings Settings by turning00790052007Athe con-
troller and press 0098to confirm.
X Select Activation by R gear
Activation by R gear and press
0098 to confirm.
The function is switched on 0073or off 0053,
depending on the previous status. 38
Rear view cameraVehicle functions

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