Page 19 of 106
Menu overview
The main functions, i.e. radio mode, CD mode, telephone mode and systems settings, can be
reached at the touch of a button. Each main function has a basic menu. Each item in the basic
menu can have several submenu items. Switch Basic menu Menu items
002A
Radio Radio
Presets
Info
Sat/FM/AM/WB
Sound
003A
Disc
CD/MP3/USB/BT Audio
1
/Media
Int. 2
Tracklist/folder
Media
Sound 002B
Telephone Telephone
Text messages
Call lists
Connect device
0066
System Settings
Time
Display off
Seat (if available)
Notes on cleaning
!
When cleaning the display must be
switched off and cooled down.
Clean the display screen, when necessary,
with a commercially available microfiber cloth
and cleaning agent for TFT/LCD displays.
Then dry and polish the screen with a dry
microfiber cloth.
! Avoid using alcoholic thinners, gasoline or
abrasive cleaning agents. These products
can damage the display surface.
1 Bluetooth ®
audio.
2 Media Interface. Audio 20 operating system
17At a glance
Page 20 of 106

Multifunction steering wheel
Example illustration
Function Page
0043
Multifunction display
0044
0059
Voice control (only in
conjunction with Becker ®
MAP PILOT ) 0087
0081
Increases the volume 21
0082
Decreases the vol-
ume 21
0061
Accepts a call 49
0076
Ends a call 49
0063
Press briefly: mutes
the audio source 21 Function Page
0085
00590065
Calls up the
menu bar and selects
menus 00630064
Press briefly:
selects a submenu or
scrolls through lists. In the
Audio Audio menu, this selects a
stored station or an audio
track. In the Phone
Phonemenu,
this switches to the phone
book and selects a name or
phone number. 00630064
Press and
hold: in the Audio Audio menu,
this selects the next/previ-
ous station or selects an
audio track using rapid
scrolling. In the Phone Phone
menu, this starts rapid
scrolling through the phone
book. 0076
Confirms selections
and fades out messages. In
the Phone Phone menu, this
switches to the phone book
and starts dialing. 0083
0038
Press briefly:
returns to the previous
menu and hides display
messages 0038
Press and hold:
selects the standard dis-
play; see vehicle Operator's
Manual 18
Multifunction steering wheelAt a glance
Page 23 of 106

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
Page 26 of 106
Rear Seat Entertainment
Components
Overview The Rear Seat Entertainment System includes:
R two rear-compartment screens behind the front-seat head restraints
R a remote control
R a CD/DVD drive
R AUX jacks on both screens (display AUX) and on the CD/DVD drive (drive AUX)
R two sets of cordless headphones
Rear-compartment screens 0043
AUX jacks, detailed view in the "CD/DVD drive and AUX jacks" section (Y page 26)
0044 Display 24
Rear Seat EntertainmentAt a glance
Page 27 of 106

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
Page 29 of 106

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
Page 30 of 106
LED dis-
play Status
Green The batteries are fine.
Red The batteries are almost dis-
charged.
Lit contin-
uously The headphones are switched
on and connected to a screen.
Flashing The headphones are search-
ing for the connection to a
screen.
No display
(dark) The headphones are switched
off or the batteries are dis-
charged.
Connecting additional headphones
You can connect one additional set of corded
headphones to each of the two rear screens
(Y
page 24). The socket is designed for head-
phones with a 3.5 mm stereo jack plug and
an impedance of 32 ohms. Changing batteries
Batteries are required for the remote control
and for the two sets of cordless headphones.
For changing batteries, see (Y page 88).28
Rear Seat EntertainmentAt a glance
Page 35 of 106

Further information on telephone mode
(Y page 43).
Bluetooth ®
is a registered trademark of Blue-
tooth Special Interest Group (SIG) Inc. Activating/deactivating Bluetooth
®
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 Activate Bluetooth
Activate Bluetooth using the
controller (slide 00C500520097) and press 0098to
confirm.
This switches Bluetooth ®
on 0073 or off 0053.
Audio 20 is now ready to utilize Blue-
tooth ®
functions, such as receiving data
from other devices or connecting mobile
phones. System language settings
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 Language Language using the controller (slide
0097005200C5 or turn 00790052007A) and press 0098to con-
firm.
X Select the desired language and press 0098
to confirm.
The menu system is shown in the selected
language. Reset function
i You can reset Audio 20 to the factory set-
tings. Among other things, this will delete
all personal data (e.g. phone book entries),
and all system settings are returned to the
factory settings. A system reset is recom-
mended, e.g. before selling the vehicle.
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 Reset Resetand press 0098to confirm.
A prompt appears asking whether you wish
to reset.
X Select Yes YesorNo
No.
If you select Yes
Yes, a prompt will appear again
asking whether you really wish to reset.
X Select Yes
YesorNo
No and press 0098to confirm.
If you select Yes
Yes, Audio 20 will be reset and
restarted. Reset function
33System settings