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
Operating safety
Important safety notes
G
WARNING
If you operate integrated communication
equipment in the vehicle when driving, you
will be distracted from traffic conditions. You
could also lose control of the vehicle. There is
a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is cov-
ering a distance of 44 feet (approximately
14 m) every second. G
WARNING
Modifications to electronic components, their
software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as
intended and/or jeopardize the operating
safety of the vehicle. There is an increased
risk of an accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
If you make any changes to the vehicle elec-
tronics, the general operating permit is ren-
dered invalid.
! Note: This equipment has been tested
and found to comply with the limits for a
Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed
to provide reasonable protection against
harmful interference when the equipment
is operated in a commercial environment.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the
instruction manual, may cause harmful
interference to radio communications.
This equipment complies with FCC radiation
exposure limits set forth for uncontrolled
equipment and meets the FCC radio fre-
quency (RF) Exposure Guidelines in Supple-
ment C to OET65.
This equipment has very low levels of RF
energy that is deemed to comply without
maximum permissive exposure evaluation
(MPE). However, it is recommended to install
it at a distance of at least 8 inches (20 cm)
between the radiation source and a person's
body (not including limbs such as hands,
wrists, feet and legs). Correct use
Always observe the following when using the
audio equipment:
R the safety notes in this manual
R national road traffic regulations
i Using roof carriers may impair the correct
functioning of a roof antenna (phone, sat-
ellite radio, GPS).
Retrofitting metalized plastic films to the
windows can affect radio reception. It can
also lead to poorer reception of all other
antennas (e.g. emergency call antennas)
inside the vehicle.
i Protection against theft: this device is
equipped with technical provisions to pro-
tect it against theft. Further information on
protection against theft can be obtained
from an authorized Mercedes-Benz Center. Declarations of conformity
Vehicle components which receive
and/or transmit radio waves USA:
"The wireless devices of this vehicle
comply with Part 15 of the FCC Rules. Oper- 8
Introduction
Audio 20 control panel
Function Page
0043
002A
Switches to radio
mode 60
Switches wavebands 61
Switches to SatRadio mode 64
0044
00BE
Activates navigation
mode (only in conjunction
with Becker ®
MAP PILOT ) 40
0087
003A
Switches to audio CD
or MP3 mode 69
0085
002B
Activates telephone
mode 48
0083
00F8
Ejects CD 69
0084
Disc slot
Insert CDs 68
Remove CDs 68
006B
0037
Delete button • Deletes characters
• Deletes an entry Function Page
006C
Number pad
• Selects stations via the
station presets
62
• Stores stations manually 62
• Telephone number entry 50
• Sends DTMF tones 52
• Character entry
006D
0049
Selects a station
using the station search
function 61
Selects the next track 71
Fast forward 72
006E
Adjusts the volume 21
006F
0043
Switches Audio 20 on/
off 20
0070
0048
Selects a station
using the station search
function 61
Selects the previous track 71
Rewinds 72
0071
0066
Calls up the basic
menu 17Audio 20 operating system
13At a glance
X
Directly in the station presets: select
Presets
Presets by sliding 00520064and turning 00790052007A
the controller and press 0098to confirm.
or
X Press 0098the controller when the display/
selection window is active.
The station preset memory appears. The
0036 dot indicates under which preset the
currently selected station is stored.
X Select a station by turning 00790052007Aand press-
ing 0098to confirm or press a number key,
e.g. 0082.
Selecting stations by entering the fre-
quency manually X
Select Radio Radiousing the controller (slide
0052 0064,009500520096or turn 00790052007A) and press 0098to
confirm.
X Select Enter Frequency
Enter Frequency and press0098to
confirm. i
Only permissible numbers for the fre-
quency range can be entered in front of the
decimal point. If a non-permissible number
is entered after the decimal point, the next
lowest frequency is set.
X Press the number keys on the number key-
pad.
Audio 20 tunes in to the frequency. Setting a station via the multifunction
steering wheel X
In the audio menu in the instrument cluster:
press the 0063or0064 button briefly.
The next or the previous station from the
station list is set.
X In the audio menu in the instrument cluster:
press and hold the 0063or0064 button for
longer than two seconds.
The previous or next station/channel in the
waveband will be set. Storing a station
Storing stations manually Ten stations can be stored for each wave-
band.
i
If a selected preset is already occupied,
the new station will be stored in place of
the old station.
X Quick save: when the display/selection
window is active, press and hold a number
key (0 to 9) on the number keypad until you
hear a tone.
The station is now stored on the selected
preset.
X Directly in the station presets: press0098
the controller when the display/selection
window is active.
or
X Select Presets
Presets using the controller (slide
0052 0064,009500520096or turn 00790052007A) and press 0098to
confirm.
The station preset display appears. The
0036 dot in front of a preset position indi-
cates that the currently selected station is
stored there. 62
Radio modeAudio
Assigning a new preset:
X
Quick save: press and hold a number key,
e.g. 0082, until you hear a tone.
The station is stored.
X Directly in the station presets: press0098
the controller when the display/selection
window is active.
or
X Select Presets
Presets by sliding 00520064and turning
00790052007A the controller and press 0098to con-
firm.
In both cases, the station presets appear.
The 0036dot indicates under which preset
the currently selected station is stored.
X Select a preset by turning 00790052007Athe con-
troller and press and hold 0098until you hear
a tone.
The station is stored under the preset.
Storing stations automatically This function automatically stores stations
with adequate reception under the presets.
The search starts at the lowest frequency.
Audio 20 stores any stations found, beginning
with preset 1. When the highest frequency is
reached or 10 stations have been found, the
storing process ends. Any stations stored
manually under the presets will be lost. Under
certain circumstances, Audio 20 will not use
all presets.
If the process is interrupted by a traffic
announcement, you will have to repeat it. X
Select Presets
Presets using the controller (slide
0052 0064,009500520096or turn 00790052007A) and press 0098to
confirm.
X Select Autostore Autostore and press0098to confirm.
Audio 20 searches for stations with ade-
quate reception. The available stations are
automatically stored in the preset posi-
tions.
The first station found is played automati-
cally. Weather Band
Activating X
Press the 002Abutton repeatedly until
Weather Band is activated.
or
X Select the currently selected waveband FM
FM,
AM AM orSatRadio
SatRadio by sliding00520064and turning
00790052007A the controller and press 0098to con-
firm.
X Select WB
WB from the menu and press 0098to
confirm.
Searching for a channel X
Quick select: turn00790052007A or slide 009500520096the
controller while the display/selection win-
dow is active.
or
X Press the 0048or0049 button.
Channel search scans up or down and
stops at the next channel found.
Selecting a channel from the channel
list X
Select Channel Channel by sliding 00520064and00790052007A
turning the controller and press 0098to con-
firm.
The channel list appears. Radio mode
63Audio