Page 59 of 117
Introduction591).......................................... 61
If switched off: switch
power on / off
If switched on: mute system
Turn: adjust volume
2 c
Display navigation app
when phone projection is
active ..................................... 75
3 b
Open audio menu:
Radio ..................................... 69
External devices (USB,
Bluetooth) .............................. 73
4 _
Open vehicle settings
menu, see Owner's Manual
5 :
Open settings menu ..............63
6 d
Open menu for picture
function ................................. 757a
Open phone menu ................82
Display phone projection
screen when phone
projection is active ................75Steering wheel controls
1Y / Z
Toggle between the
menus in the Driver
Information Centre
2 +
Increase volume
3 8
Mute the audio
4 –
Decrease volume
Page 60 of 117
60Introduction
1Y / Z
Play next or previous radio station / song
2 aSRC
Toggle between the audio
sources or open phone
menu if phone connected
3 Y
Activate or deactivate
speech recognition
4 LIST
Display radio stations list
or folder list
Steering column controls
1 Y / Z
Play next or previous radio station / song
2 LIST
Display radio stations list
or folder list
3 OK
Confirm a selection in the
Info Display
4 SRC/TEL
Toggle between the audio
sources or open phone
menu if phone connected
Page 61 of 117

Introduction61Usage
Control elements
The Infotainment system is operated
via function buttons, a touch screen
and menus that are shown on the
display.
Inputs are made optionally via: ● the control panel on the Infotainment system 3 58
● the touch screen 3 63
● audio controls on the steering wheel 3 58
● the speech recognition 3 77
Switching the Infotainment
system on or off
Press ). After switching on, the last
selected Infotainment source
becomes active.
Notice
Some functions of the Infotainment
system are only available if ignition
is switched on or engine is running.Automatic switch-off
If the Infotainment system has been
switched on pressing ) while the
ignition is switched off, it will switch off
again automatically when the ECO
mode becomes active.
Setting the volume Turn ). The current setting is shown
on the display.
When the Infotainment system is switched on, the last selected volume is set.
Speed compensated volume
When the speed compensated
volume is activated 3 65, the
volume is adapted automatically to make up for the road and wind noise
as you drive.
Mute
Press ) to mute the Infotainment
system.
To cancel the mute function,
press ) again. The last selected
volume is set again.Modes of operation
Audio-Media
Press b to display the main menu of
the last selected audio mode.Changing the media source
Select SOURCES to display the
menu for media source selection.
Notice
For a detailed description of menu
operation via touch screen 3 63.
Select the desired media source.
For a detailed description of: ● Radio functions 3 69
● External devices 3 74
Page 62 of 117

62IntroductionPhone
Before the phone function can be
used, a connection has to be
established between the Infotainment system and the mobile phone.
For a detailed description of
preparing and establishing a
Bluetooth connection between the Infotainment system and a mobile
phone 3 80.
If the mobile phone is connected,
press a to display the main menu of
the phone function.
For a detailed description of mobile
phone operation via the Infotainment
system 3 82.
Apps
To show specific apps of your
smartphone on the display of the
Infotainment system, connect your smartphone.
Press a and touch Apple CarPlay or
Android Auto . A menu with different
selectable apps is displayed.
For a detailed description 3 75.
Settings
Press b, select OPTIONS and then
select AUDIO SETTINGS to display
the respective menu.
For a detailed description 3 63.
Press : to display a menu for
various system-related settings.
For a detailed description 3 63.
Vehicle settings
Select _ to open a menu for various
vehicle-related settings.
Vehicle settings are described in the
Owner's Manual.
Settings center
The Settings center provides quick
access to the following settings:
● dark screen
● brightness
● profiles
● system configuration
● privacy settings
Touch the top line of the screen to
display the Settings center .
Page 65 of 117

Basic operation65To adjust a setting like the illustrated
example, you may optionally:
● Touch P or Q.
● Touch anywhere on the line.
● Move the slider with your finger.
Tone settings Press b, select OPTIONS and then
select AUDIO SETTINGS .
Several predefined settings are
available to optimise the tone for a
specific style of music (e.g. Pop-
Rock or Classical ).
To adjust the tone individually, select
User . Change the settings as desired.
Notice
If you change the settings of a
predefined setting, e.g. Pop-Rock,
this settings will be applied to the User setting.
Balance and fader
Select the Balance tab.
Several predefined settings are
available to adjust the volume
distribution inside the vehicle (e.g. All
passengers or Front only ).
To change the current setting, e.g. All
passengers , select that setting and
then select the desired new setting
from the displayed list.
You may individually adjust the
predefined settings.
To define the point in the passenger
compartment where the volume is at
its highest level, move the cursor in
the illustration on the right side of the
screen to the desired point.
To return to the default factory
settings, select h.
Volume settings Press b, select OPTIONS and then
select AUDIO SETTINGS . Then
select the Sound tab.
Audible touch feedback
If the audible touch feedback function
is activated, each touch of a screen
button or menu item is indicated by a
beeping sound.
To adjust the touch beep volume,
activate Touch tones and then adjust
the setting.
Speed compensated volume Activate or deactivate Volume linked
to speed .
Page 69 of 117

Radio69RadioUsage.......................................... 69
Radio data system .......................70
Digital audio broadcasting ...........71Usage
Activating the radio
Press b. The audio main menu last
selected is displayed.
If the radio main menu is not active,
select SOURCES and then select
Radio .
The station last played will be
received.
Selecting a waveband
Select OPTIONS and repeatedly
touch i to toggle between the
different wavebands.
Searching for stations
Automatic station search
Briefly touch P or Q to play the
previous or next receivable station.
Manual station search
Press and hold P or Q. Release when
the required frequency has almost
been reached.
A search is made for the next station
that can be received and it is played
automatically.
Station lists
In the station lists, all receivable radio
stations within the current reception
area are available for selection.
To display the station list of the
waveband currently active, select
List .
Select the desired station.Update station lists
If the stations stored in the waveband-
specific station list can no longer be
received, the station lists must be
updated.
To start an update for the currently
active waveband, select U.
Page 71 of 117

Radio71Radio text
If RDS is activated, information on the
radio programme currently active or
the music track currently playing are
displayed below the programme
name.
To show or hide the information, go to
the OPTIONS menu and activate or
deactivate Information .
Traffic announcements
Many RDS stations broadcast traffic
news. If the traffic announcements
function is activated, radio or media
playback is interrupted for the
duration of a traffic announcement.
To activate traffic announcements, go to the OPTIONS menu and activate
TA .
If TA is activated, TA is displayed in
the bottom line of the radio main
menu.
Digital audio broadcasting
Digital audio broadcasting (DAB)
broadcasts radio stations digitally.DAB stations are indicated by the
programme name instead of the
broadcasting frequency.
General information ● With DAB, several radio programmes (services) can bebroadcast on a single ensemble.
● Besides high-quality digital audio
services, DAB is also able to
transmit programme-associated data and a multitude of other data services including travel andtraffic information.
● As long as a given DAB receiver can pick up the signal sent out bya broadcasting station (even if
the signal is very weak), sound
reproduction is ensured.
● In the event of poor reception, the
volume is reduced automatically
to avoid the output of
disagreeable noises.
If the DAB signal is too weak to
be picked up by the receiver,
reception is interrupted
completely. This incident can be
avoided by activating DAB-FM
auto tracking, see below.● Interference caused by stations that are on nearby frequencies (aphenomenon that is typical of AMand FM reception) does not
occur with DAB.
● If the DAB signal is reflected by natural obstacles or buildings,
the reception quality of DAB is
improved, whereas AM or FM
reception is considerably
impaired in such cases.
● When DAB reception is enabled, the FM tuner of the Infotainmentsystem remains active in the
background and continually
searches for the FM stations with
the best reception. If Traffic
announcement 3 70 is activated,
traffic announcements of the FM
station with the best reception
are issued. Deactivate Traffic
announcement if DAB reception
should not be interrupted by FM
traffic announcements.
FM-DAB Linking
This function enables switching from
an FM station to a corresponding
DAB station and vice versa.
Page 73 of 117

External devices73External devicesGeneral information.....................73
Playing audio ............................... 74
Displaying pictures ....................... 75
Using smartphone applications ...75General information
A USB port is located in the centre
console.Caution
To protect the system, do not use
a USB hub.
Notice
The USB ports must always be kept clean and dry.
USB ports
An MP3 player, USB device, SD card (via USB connector / adapter) or
smartphone can be connected to the
USB port.
The Infotainment system can play
audio files or show picture files
contained in USB devices.
When connected to a USB port,
various functions of the devices
mentioned above can be operated via the controls and menus of the
Infotainment system.
Notice
Not all auxiliary devices are
supported by the Infotainment
system.
Connecting / disconnecting a device Connect one of the devices
mentioned above to a USB port. If
required, use the appropriate
connection cable. The music function
starts automatically.
Notice
If a non-readable USB device is
connected, a corresponding error
message appears and the
Infotainment system automatically
switches to the previous function.
To disconnect a USB device, select
another function and then remove the USB device.Caution
Avoid disconnecting the device
during playback. This may
damage the device or the
Infotainment system.