Electrical -- Basic Knowledge -- Audio System: Overview Mercedes-Benz E-class W212/S212/C207/A207

Scheme 244

Model 211.0 with code 510 Audio 20 with CD changer shown

Scheme 245

Model 211.0 with code 523 MB Audio 20 radio shown

Scheme 246

Model 219.3 with code 510 Audio 20 with CD changer shown

Scheme 247

Shown with code 523 MB Audio 20 radio

Scheme 248

Shown with code 510 Audio 20 with CD changer

Table of contents for function description of satellite radio (SDAR) - GF82.60-P-0994TU

MODEL 211.0/2 with CODE (536) SIRIUS satellite radio

Contents, function description, Audio 20 - GF82.60-P-0995TM

MODEL 211, 219 with CODE (523) MB Audio 20 radio with CODE (510) Audio 20 with CD changer as of Model Year 9/AEJ 07

Contents, function description, audio system - GF82.60-P-0996TCZ

MODEL 211.0/2 as of 1.3.03

TV tuner, component description - GF82.60-P-3110TM

MODEL 211.0/2 as of 1.6.06 up to 1.4.08 with CODE (863) Digital/analog TV tuner

MODEL 211.0/2 with CODE (863) Digital/analog TV tuner except CODE (494) USA version as of model year 09/YoM 08

Shown on model 211.0

Scheme 249

Location

The TV combination tuner (analog/digital) is located at the side wall behind the left inner wheel well.

Task

The TV combination tuner (analog/digital) performs the following tasks

1. Reception of analog and terrestrial digital television (TV) signals
2. Forwarding of video and audio signals to the COMAND operating, display and controller unit (A40/3) and the audio gateway control unit (N93/1) (up to model year 09).

As of model year 09 the audio gateway control unit is omitted

Design

1. 4-fold antenna diversity, separated into video and audio signals
2. TV-tuner module for audio and video reception
3. Multinorm receiver
4. Multinorm signal processing

Function

The TV combination tuner (analog/digital) receives and processes analog and digital television programs and communicates with the COMAND operating, display and controller unit, the audio gateway control unit (up to model year 09) and the other system components via the built-in Media Oriented System Transport (MOST) ring interface.

The TV combination tuner (analog/digital) supports all channel lists and audio standards worldwide

Radio control panel, component description - GF82.60-P-3116TM

MODEL 211, 219 with CODE (523) MB Audio 20 radio as of Model Year 9/AEJ 07

Shown on 211

Location

The radio is located in the center console.

Scheme 250

Task

The radio has the following tasks

1. Central control and display device for entertainment and communications systems integrated into vehicle
2. Reads in the controls and input signals
3. Evaluating input factors
4. Actuates output media

Central operating and display unit for the entertainment and communication systems integrated into the vehicle

The radio provides the user with a structured and uniform interface.

Reads in the controls and input signals

The input factors are read in via the following connections

1. Direct lines
2. Controller Area Network (bus/CAN bus)

The radio consists of the following direct connections

1. Circuit 30
2. Circuit 31
3. Telephone MUTE
4. Bluetooth antenna (A2/91)
5. Microphone SBS (B25/7)
6. AUX input (access in glove box)

The radio is a subscriber on the Controller Area Network bus, class B (interior) (CAN B). It communicates with the following components, for example

1. Instrument cluster (A1)
2. EIS [EZS] control unit (N73)
3. Steering column tube module (N80)

Evaluation of input factors

The input values are processed in the radio.

Actuates output media

The following direct output signals are possible

1. Audio Out (speaker) to following speakers
2. Left front door speaker group (H4/1)
3. Right front door speaker group (H4/2)
4. Left rear door speaker group (H4/3)
5. Right rear door speaker group (H4/4)
6. Bass box speaker (H4/17)

Provision of structured and uniform interface for the following system components

1. Audio system (e.g. radio, Compact Disk (CD) (also MPEG-1 audio layer 3 (MP3)), AUX)
2. Communication system (e.g. telephone with telephone book function)
3. Sound settings (z. B bass, treble, fader, balance)
4. System settings (e.g. brightness and contrast of display
5. Evaluation of signals from interior CAN-B

The radio generates a structured and uniform interface which is shown on the radio display

Front view and button assignment

Scheme 251

Function

The buttons on the radio are read in and the signals made available to the integrated central computer. Button actuation is processed further in the central computer. A radio can be switched On and Off with the On/Off button. The volume is regulated by turning the volume setting button for each set audio source. The user can switch to the required system component by pressing the menu buttons.

Single slot CD drive

The integrated single slot CD drive can be used to play audio CDs (including MP3 format).

Radio control panel, component description - GF82.60-P-3116TMA

MODEL 211, 219 with CODE (510) Audio 20 with CD changer as of Model Year 9/AEJ 07

Shown on 211

Location

The radio is located in the center console.

Scheme 252

Task

The radio control panel has the following tasks

1. Central control and display device for entertainment and communications systems integrated into vehicle
2. Reads in the controls and input signals
3. Evaluating input factors
4. Actuates output media

Central control and display device for entertainment and communications systems integrated into vehicle

The radio control panel provides the user with a structured and uniform interface.

Reads in the controls and input signals

The input factors are read in via the following connections

1. Direct line
2. Controller Area Network (bus/CAN bus)
3. Media Oriented System Transport (MOST)

Direct input signals

1. Circuit 30
2. Circuit 31
3. Telephone MUTE
4. Left antenna amplifier module (A2/64)
5. Right antenna amplifier module (A2/65)
6. Bluetooth antenna (A2/91)
7. Microphone SBS (B25/7)
8. AUX input (accessible in glove box), except code 518 Media interface

The radio is a subscriber on the Controller Area Network bus, class B (interior) (CAN B). It communicates with the following components, for example

1. Instrument cluster (A1)
2. EIS [EZS] control unit (N73)
3. Steering column tube module (N80)

MOST

Control and audio signals from the following control units

1. Media interface control unit (N125/1) with code 518 Media interface
2. Sound system amplifier (N40/3) with code 810 Sound system
3. Digital Audio Broadcasting control unit (N87/3), with code 537 Digital radio and code 833 Great Britain version

Evaluation of input factors

The input values are processed in the radio control panel.

Actuates output media

The following direct output signals are possible

1. Audio Out to the following speakers (except code 810 Sound system): Left front door speaker group (H4/1) Right front door speaker group (H4/2) Left rear door speaker group (H4/3) Right rear door speaker group (H4/4) Bass box speaker (H4/17)
2. Wake-up for MOST
3. Provision of structured and uniform interface for the following system components: Audio system (e.g. radio, Compact Disk (CD) (also MPEG-1 audio layer 3 (MP3)), AUX) Communication system (e.g. telephone with telephone book function) Sound settings (z. B bass, treble, fader, balance) System settings (e.g. brightness and contrast of display Evaluation of signals from interior CAN-B

Front view and button assignment

Scheme 253

Function

The buttons on the radio are read in and made available to the integrated central computer. The button operations are processed further in the central computer and transferred to other system components as a messages via the MOST or CAN B. The radio is switched On or Off when the On/Off button on the radio is pressed. The volume is regulated by turning the volume setting button for each set audio source. The user can switch to the required system component by pressing the menu buttons.

CD-6-disk changer

The integrated CD changer can be used to play audio CDs (including in MP3 format).

Digital TV tuner, component description - GF82.60-P-3118TJA

MODEL 211, 219 with CODE (865) TV tuner with CODE (498) Japan version as of Model Year 9/AEJ 07

Shown on model 211.0

Scheme 254

Shown on model 211.2

Scheme 255

Location

The digital TV tuner is screwed to a bracket at the left side of the trunk.

Task

The digital TV tuner has the following tasks

1. Reading in digital TV signals
2. Evaluating input factors
3. Output of output values
4. Exchange of control commands and transfer of audio signals and data for the auxiliary TV services (e.g. videotext, DVB-T data services)

Reading in digital TV signals

The input factors are read in with the following connections

1. Antennas for reception of digital TV signals
2. Digital TV signals via: TV 1 and TV 2 antenna (model 211.0, 219) Left antenna amplifier module (A2/64) TV 3 and TV 4 antenna (model 211.0, 219) Right antenna amplifier module (A2/65) TV 1 and TV 2 antenna (model 211.2) Right antenna amplifier module (A2/65) TV 3 and TV 4 antenna (model 211.2) Window antenna amplifier module 2 (A2/72)

Evaluation of input factors

The amplified TV signals are evaluated internally and separated into video and audio signals.

1. Power supply via circuit 31 and circuit 30g over one direct line each
2. Electronic wake-up for Media Oriented System Transport (MOST) via one direct line

Output of output values

The output values are output via the following connection

1. Control/power supply antenna amplifier
2. Y/C line (video output)

Exchange of control commands and transfer of audio signals and data for the auxiliary TV services (e.g. videotext, DVB-T data services)

MOST signals

1. Control data
2. Audio signals
3. Additional data for videotext, etc.

SDAR control unit, component description - GF82.60-P-3200TXB

MODEL 211, 219 with CODE (536) SIRIUS satellite radio with CODE (494) USA version as of Model Year 9/AEJ 07

Shown on model 211.0

Scheme 256

Location

The SDAR control unit is located behind the trunk lining at the right side of the trunk.

Task

The SDAR control unit has the following tasks

1. Receive signals for satellite S-band and terrestrial S-band with the integrated traffic information signals via a coaxial line from the SDAR antenna (A2/49a4).
2. Decoding and amplifying the signals for satellite S-band and terrestrial S-band
3. Transmitting the signals (audio, data, traffic information) to the COMAND operating, display and controller unit (A40/3) via the Media Oriented System Transport (MOST).

Media interface control unit, component description - GF82.60-P-5000TM

MODEL 211, 219 with CODE (518) Media interface as of model year 09/YoM 08

Illustrated on model 219

Location

The media interface control unit is located behind the glove box in the dashboard.

Scheme 257

Depending on the equipment version, one of the following audio devices is installed (hereinafter called "Audio equipment")

1. Radio (A2), with code 510 Audio 20 with CD changer
2. Radio control panel and navigation unit (A2/56), with code 525 MB Audio 50 APS radio or with code 511 Audio 50 APS with DVD changer
3. COMAND operating, display and controller unit (A40/3), with code 528 COMAND with DVD changer, with code 527 COMAND APS with single DVD drive (with navigation) or with code 512 COMAND APS with DVD changer

Task

1. Receive signals
2. Transmitting signals

Receive signals

1. Direct lines
2. Media Oriented System Transport (MOST)

Direct lines

1. Power supply, circuit 31 and circuit 30 over G+H connector
2. Audio signals and data from the electrical media interface connector 1 (X18/67) via the Mitsumi CAM62 connector
3. Electronic wake-up for MOST over G+H connector

MOST

1. Control signal from the "audio equipment" via MOST 2+0 connector

Transmitting signals

1. Direct lines
2. MOST

Direct lines

1. General power supply to the media interface connector and for Universal Serial Bus (USB) via the Mitsumi CAM62 connector
2. Control signal to media interface connector over Mitsumi CAM62 connector

MOST

1. Audio signals and data to "audio equipment" via MOST 2+0 connector

Media interface electrical connector, component description - GF82.60-P-5001TM

MODEL 211, 219 with CODE (518) Media interface as of Model Year 9/AEJ 07

Illustrated on model 219

Location

The media interface connector 1 is located in the glove box.

The AUX jack usually installed in the glove box has been eliminated

Scheme 258

Depending on the equipment version, one of the following audio devices is installed (hereinafter called "Audio equipment")

1. Radio (A2), with code 510 Audio 20 with CD changer
2. Radio control panel and navigation unit (A2/56), with code 525 MB Audio 50 APS radio or with code 511 Audio 50 APS with DVD changer
3. COMAND operating, display and controller unit (A40/3), with code 528 COMAND with DVD changer, with code 527 COMAND APS with single DVD drive (with navigation) or with code 512 COMAND APS with DVD changer

Task

Relaying signals

1. Power supply from media interface control unit (N125/1) for specific portable devices connected over media interface adapter cable
2. Audio signals and data from the specific portable devices connected to the media interface control unit over the media interface adapter cable
3. Video signals and data from the specific portable devices connected to the "Audio equipment" over the media interface adapter cable and a direct line
4. Control signals from the media interface control unit or for the specific portable devices connected over the media interface adapter cable

Overview of system components for satellite radio (SDAR), location/task/design/function - GF82.60-P-9994TU

MODEL 211.0/2 with CODE (536) SIRIUS satellite radio

Overview of system components Audio 20 Location/task/design/function - GF82.60-P-9995TM

MODEL 211, 219 with CODE (523) MB Audio 20 radio with CODE (510) Audio 20 with CD changer as of Model Year 9/AEJ 07

Overview of system components, audio system, location/task/design/function - GF82.60-P-9996TCZ

MODEL 211.0/2 as of 1.3.03

Scheme 259

Shown on model 211.0

Scheme 260

Shown on model 219

Scheme 261

Auto pilot system (APS) operating description - GF82.61-P-0001-08TXB

General information

The driver information system is operated using the

1. Control buttons on the radio control panel and navigation unit (A2/56)
2. Left multifunction steering wheel button group (S110) and right multifunction steering wheel button group (S111)

The control description comprises the following subfunctions

1. Audio base function
2. Basic navigation function
3. Basic telephony function
4. Services (Short Message Service (SMS) and address book)
5. Control of audio signals (sound settings)
6. System settings
7. Media interface Universal Consumer Interface (UCI), with code 518 Media interface

Basic audio function

If the basic audio function is activated, then the last executed audio application is started. If another audio application is to be started, then a change must be made in the menu bar and the Audio menu item selected.

The following audio sources can only be selected using the Audio menu item

1. Radio (amplitude modulation (AM)/frequency modulation (FM))
2. Digital Audio Broadcasting (Digital Radio) (DAB) radio, with code 537 Digital radio and code 833 Great Britain version
3. Compact Disk (CD) audio
4. MPEG-1 audio layer 3 (MP3) (on Digital Versatile Disk (DVD)/CD)

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Radio (AM/FM)

If the Radio menu item is activated, the default screen appears. The following information is shown in the display

1. The current stations and the numbers of their memory locations (station name with the radio data system (RDS))
2. A cursor to select the station

Selection or settings using the function bar

1. Radio: List of stations, save station, enter frequency, fix frequency, Traffic Announcement (TA)
2. Memory: List of stored stations, automatic memory for automatic searching and saving of the stations with the best reception
3. FM: Selection of frequency band (medium wave, FM, long wave, short wave)
4. Sound: Configuration of audio output

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

DAB radio, with code 537 Digital radio and code 833 Great Britain version

If the DAB radio menu item is activated, the default screen appears.

The following information is shown in the display

1. The ensemble (DAB package for a region)
2. The current stations and the numbers of their memory locations
3. A cursor to select the station

Selection or settings using the function bar

1. DAB: Available subprograms, list of stations, save stations
2. Memory: List of stored stations, automatic memory for automatic searching and saving of the stations with the best reception

1. Ensemble: Selection of ensemble (DAB package)
2. Sound: Configuration of audio output

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

CD audio

If the CD audio menu item is activated, the default screen appears. The following information is shown in the display

1. Number of tracks on the CD
2. Current track with elapsed play time
3. Artist (if available on CD)
4. Album

The following control options are available

1. Selection or settings using the function bar
2. Title selection with skip function
3. Fast Forward/Rewind

Selection or settings using the function bar

1. CD: Play mode (artist, standard track sequence, random track sequence)
2. Icons for Start/Stop: Starting and stopping a track
3. Track list: List of tracks
4. Changer: Selection of player source with code 511 Audio 50 APS with DVD changer
5. Sound: Configuration of audio output

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Title selection with skip function

Operating the left or right control buttons on the radio (A2) plays the previous track or the next track in the list of tracks.

Fast Forward/Rewind

The play position can be changed by pressing and holding the right or left control buttons on the radio.

MP3

If the MP3 menu item is activated, the default screen appears. The following appears on the display

1. Number of tracks in directory on the DVD/CD
2. Current track with elapsed play time
3. Artist

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Basic navigation function

If the basic navigation function is activated, the default screen appears. The following selection options or settings are available via the function bar

1. Guide: selection of points of interest (POI) as the new destination
2. Traffic Message Channel (TMC): Detail display of TMC messages
3. Route: Route information (arrival time, distance, block route). Only appears when a destination has already been entered.
4. Ear symbol: Repeat of acoustic route recommendation
5. Destination: Submenu in which destination options (destination entry, intermediate stop, cancel, continue, points of interest) can be set

Selection or settings using the function bar

1. MP3: Play mode (e.g. standard track sequence, random track sequence, artist)
2. Changer: Selection of player source with code 511 Audio 50 APS with DVD changer
3. Sound: Configuration of audio output

The following navigation functions can be selected using the Navigation menu item

1. Destination entry
2. Detail display of TMC messages
3. Route information

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Destination entry

The destination is entered via the "Destination" menu item. The default screen appears.

Selection or settings

1. Cancel destination-oriented navigation: The destination-oriented navigation is interrupted. The "Continue destination-oriented navigation" menu item appears
2. Address entry: Entering a destination address
3. From memory: Calling up a destination address from the "Destinations" memory
4. From last destination: Calling up a destination address from the temporary "Destinations" memory
5. Save destination: Saving an address entered in the navigation system
6. From points of interest: Calling up a point of interest (POI) from the POI list
7. Intermediate stop: Specifying an intermediate stop (via destination)

Detail display of TMC messages

The TMC menu item provides a detail display of TMC messages. The default screen appears.

Selection or settings

1. Display all messages: All TMC messages on the route are shown.
2. Read aloud all messages on route: All displayed messages are emitted over the vehicle speakers (Text to Speech (TTS) required).
3. Display messages (symbol): Displays messages arranged according to freeways/roads.

If the destination-oriented navigation is not active when the TMC menu item is activated, a list of all available TMC messages is then shown

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings. The TMC messages are shown as a list.

Route information

Route information (arrival time, distance, block route) is displayed via the Route menu item. The default screen appears.

Selection or Settings

1. Route information: Information such as distance and time left to destination or intermediate stop is displayed.
2. In the route browser, the calculated route can be scrolled through using the "Next" and "Previous" menu items.
3. Block route: Enables sections of the calculated route to be blocked.

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Basic telephony function

The comfort telephony variants, with code 386 Preinstallation for telephone "cell phone", UPCI [UHI] system, and basic telephony are available.

If the basic telephony function (Tel) is activated, the default screen appears.

Selection or settings

1. Telephone: Access (selection of phones available in the vehicle)
2. SMS: Calling up the SMS function (manages incoming messages only, SMS messages cannot be compiled or sent), with code 386 Preinstallation for telephone "cell phone", UPCI [UHI] system
3. Calls list: Access to calls list (missed, accepted, dialed calls)

A connection can be made as follows

1. Entry of telephone number using the keypad on the mobile phone
2. Select telephone book entries with left multifunction steering wheel button group or right multifunction steering wheel button group
3. Selection of telephone numbers from call list

Incoming calls are signaled acoustically and on the display of the radio control panel and navigation unit. The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Services

1. SMS
2. Address book

SMS

The SMS service function is activated via the basic telephony function (Tel) and then via the SMS subfunction.

Selection or Settings

1. Telephone: Access (selection) of phones available in the vehicle
2. Calls list: Access to calls list (missed, accepted, dialed calls)

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Address book

The address book service function is activated via the basic telephony function (Tel) and then via the address book subfunction.

Selection or settings

1. Telephone: Calling up telephone function
2. Address book: Calling up address book function

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Control of audio signals (sound settings)

The audio signals (sound settings) are controlled using the Sound menu item. The default screen appears.

Selection or settings

1. Treble: Setting the treble
2. Bass: Setting the bass
3. Bal/Fad: Setting the balance and fading
4. Sound: Setting the tone options, with code 810 Sound system, the Pro Logic 7 can also be selected

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

System settings

The system settings are made using the System menu item. The default screen appears. The setting options are allocated to the following submenus

1. Language
2. System

Language

The following languages can be selected for the display of the radio and navigation unit

1. Danish
2. German
3. English
4. French
5. Spanish
6. Italian
7. Dutch
8. Portuguese
9. Russian
10. Swedish
11. Turkish

System

The following system settings can be made

1. Display
2. Time
3. Voice
4. Services

Display

The following settings can be made

1. Brightness
2. Day design
3. Night design
4. Automatic

The control buttons on the radio control panel and navigation unit are used to make the selection or the settings.

Time

The following settings can be made

1. Time
2. Date
3. Display format for time and date
4. Time zone
5. Automatic changeover of daylight saving time/standard time

Voice

The following settings can be made

1. Slow
2. Medium
3. Fast

Services

The following settings can be made

1. Service status, display and change of status of available services
2. Find Bluetooth devices
3. Disable Bluetooth
4. Reset, the settings are reset to the manufacturer default settings.

Media interface Universal Consumer Interface (UCI), with code 518 Media interface

If the Audio menu item and the UCI function are activated, the following is shown on the display

1. Play lists
2. Artists
3. Albums
4. Genres or audio books

Selection or connection options

1. iPods: Are connected to the iPod connector.
2. Universal Serial Bus (USB) devices: Are connected to the USB socket.
3. Media Transfer Protocol (MTP) devices: Are connected to the USB socket and to the AUX jack.

The selection or settings can be made using the control buttons of the radio control panel and navigation unit or the left multifunction steering wheel button group and the right multifunction steering wheel button group.

The menu navigation and display of the connection options are shown on the display of the radio control panel and navigation unit and are dependent on the respective connected portable terminal

Table of contents, function description of Audio 50 APS - GF82.61-P-0997TM

MODEL 211.0/2 as of 1.6.06 with CODE (525) MB Audio 50 APS radio

Table of contents, function description of Audio 50 APS - GF82.61-P-0997TXB

MODEL 211, 219 with CODE (511) Audio 50 APS with DVD changer with CODE (525) MB Audio 50 APS radio as of Model Year 9/AEJ 07

Table of contents, function description of Audio 50 APS - GF82.61-P-0997TZ

MODEL 211.0/2 up to 31.5.06 with CODE (525) MB Audio 50 APS radio

See also:
• GF82.62-P-6003TM
• GF82.62-P-4220TM
• GF82.62-P-3050TM
• GF82.62-P-5000TM