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
Overview
Symbol Controller operation Function (examples)
0098
Press briefly R
Selects a menu item Press and hold until the selected
action is carried out R
Stores a station 00790052007A
Turn R
Scrolls through vertical or hori-
zontal menus
R Scrolls through text
R Makes settings 009700520064 Slide R
Scrolls through a vertical menu
R Exits a horizontal menu 009500520096
Slide R
Scrolls through a horizontal
menu
R Exits a vertical menu Slide and hold R
Fast forward or rewind during CD
playback
R Scrolls through lists Controller buttons
0043
Back button 003D
0044 Clear button 0084
0087 Seat function button
0085 Favorites button
i If the seats on your vehicle can be
adjusted via Audio 20, it will have the seat
function button. Otherwise, a second favor-
ites button will be located here. X
To go up a level in the menu: briefly press
the 003D back button
Audio 20 changes to the next higher menu
level in the current operating mode.
X To switch to the basic menu: press and
hold the 003Dback button.
Audio 20 changes to the basic menu of the
current operating mode.
X To delete individual characters: briefly
press the 0084delete button.
X To delete an entire entry: press and hold
the 0084 delete button.
X To call up the favorites function: press
the left or right star button.
i Information on setting the Favorites func-
tion (Y page 15). Audio 20 operating system
15At a glance
Switching the sound on or off
X
Press button 0084on the remote control.
The sound is on or off.
Selecting a menu/menu item and con-
firming your selection X
Select a menu/menu item using the
0059006500630064 buttons on the
remote control and press the 008Bbutton to
confirm. CD/DVD drive and AUX jacks
The CD/DVD drive is located in the center
behind the front seats. 0043
CD/DVD slot
0044 AUX, right-hand (R) jack for audio signal
0087 AUX, left-hand (L) jack for audio signal
0085 AUX, jack for video signal (V)
0083 CD/DVD eject button
The AUX jacks shown are for the AUX drive.
Identical jacks can be found on the right-hand
side of the rear-compartment screens (AUX
display) (Y page 24). 26
Rear Seat EntertainmentAt 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. Seat functions
Overview
The possible settings depend on the type of
seat and the vehicle model series. For M-
Class and GL-Class vehicles with multicon-
tour seats, you can call up the following
adjustment functions:
R seat cushion length
R backrest side bolsters
R lumbar
R massage Selecting the seat
First select the seat which you wish to adjust.
X Option 1: press the 0050button next to the
controller.
X Option 2: press the 0066button.
X Select Seat
Seatand press 0098to confirm. X
To switch to the lower line, for both options
slide 00520064the controller.
X Select Driver's Seat Driver's Seat orPassenger
Passenger
Seat
Seat by turning 00790052007Athe controller and
press 0098to confirm. Adjustment functions
Adjusting the seat cushion This function allows you to adjust the length
of the seat cushion.
X
Select the seat (Y page 36).
X Select Seat Surface Seat Surface by turning00790052007Athe
controller and press 0098to confirm.
A scale appears. X
Turn 00790052007A or slide 009700520064the controller and
press 0098to confirm.
X To exit the menu: press the0038back
button.
Adjusting the seat contour in the lum-
bar region of the seat backrest This function allows you to adjust the air
cushions in the lumbar region of the backrest
(4-way lumbar support).
X
Select the seat (Y page 36).
X Select Lumbar Lumbar by turning 00790052007Athe control-
ler and press 0098to confirm.
A crosshair appears. You can make two
settings: 36
Seat functionsVehicle functions
X
To change the setting: use the0063
or 0064 button to select a language.
X Press 008B.
The Rear Seat Entertainment System acti-
vates the selected language. Switching the display design
X Select System Settings
System Settings using the0059
or 0065 button and press 008Bto confirm.
X Select Day Mode
Day Mode, Night Mode
Night Mode orAuto‐
Auto‐
matic
matic using the 00630064 buttons and
press the 008Bbutton to confirm.
The dot in front of the menu item indicates
the currently selected setting. Design Explanation
Day Mode
Day Mode The display is set per-
manently to day
design.
Night Mode Night Mode The display is set per-
manently to night
design.
Automatic Automatic The display design
changes depending on
the vehicle instrument
cluster illumination.
Setting the brightness
X Select System Settings System Settings using the0059
or 0065 button and press 008Bto confirm.
X Select Brightness Brightness and confirm with the
008B button.
A scale appears.
X Adjust the brightness using the 00630064
buttons and press the 008Bbutton to confirm.
The brightness bar moves up or down. The
picture becomes lighter or darker in
accordance with the scale. Showing/hiding the picture
X To hide the picture: selectDisplay Off Display Off
in the system menu using the 00640065
buttons on the remote control and press
the 008Bbutton to confirm.
The picture is hidden.
X To show the picture: press the008Bbutton
on the remote control. CD/audio DVD and MP3 mode
Important safety notes
G
WARNING
The CD/DVD drive is a class 1 laser product.
If you open the CD/DVD drive housing, you
could be exposed to invisible laser radiation.
This laser radiation could damage your retina.
There is a risk of injury.
Never open the housing. Always have main-
tenance and repair work carried out at a quali-
fied specialist workshop. General notes
You will find information on the following top-
ics in the Audio section:
R notes on CDs/DVDs (Y page 73)
R notes on MP3 mode ( Ypage 73)
R notes on copyright ( Ypage 74) Inserting a CD/DVD
i The CD/DVD drive is located in the center
behind the front seats. CD/audio DVD and MP3 mode
91Rear Seat Entertainment Z