change wheel MERCEDES-BENZ CLA-Class 2014 C117 Audio Manual

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

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

Dialing a telephone number from a call
list X
Select Call Lists
Call Lists by sliding00520064,009500520096
or turning 00790052007Athe controller and press
0098 to confirm.
X Select Calls Received
Calls Received orCalls
Calls
Dialed
Dialed and press 0098to confirm.
X Select the entry and press 0098to confirm
(Y page 57).
X Press the 0061button or the 0098controller.
i Operation using the multifunction steer-
ing wheel (Y page 57)
Redial i
Requirement: no characters should have
been entered.
X Press the 0061button.
or
X Select 0059and press 0098the controller.
The most recently dialed telephone num-
bers are displayed.
X Select the desired telephone number.
X Press the 0061button.
or
X In the telephone basic menu in the instru-
ment cluster: press the 0061button on the
multifunction steering wheel. Canceling dialing or ending a call X
Select 0071in the display by sliding 00520064,
009500520096or turning 00790052007Athe controller and
press 0098to confirm.
X Press the 0076button on Audio 20 or on
the multifunction steering wheel. Making a call via speed dial
The speed dial list contains stored phone
book entries (Y page 57).
Option 1:
X Hold down one of the number keys for lon-
ger than two seconds.
Option 2:
X Call up the telephone basic menu
(Y page 48).
X Select Call Lists Call Lists by sliding00520064,009500520096
or turning 00790052007Athe controller and press
0098 to confirm.
X Select Speed
Speed Dial
DialPreset
Preset List
Listby turn-
ing 00790052007Athe controller and press 0098to
confirm.
The speed dial list appears.
X Select preset and press 0098to confirm.
Irrespective of the option chosen, the tele-
phone basic menu appears and displays
the selected entry. This initiates dialing. Functions available during a call
Switching the microphone on/off The menu bar changes when you make a call.
Instead of the
Call Lists Call Listsmenu item, you
will see Mic Off
Mic Off orMic On
Mic On.
X To switch off: selectMic Off
Mic Off by sliding
0052 0064,009500520096or turning 00790052007Athe controller
and press 0098to confirm.
The message: The microphone is off
The microphone is off
appears briefly.
If the microphone is switched off the 004D
icon appears in the main area. The person Using the telephone
51Telephone Z