Audio/COMAND Function - GF82.85-P-0014FH
Model 238
Up To Model Year 2021
Function requirements for Audio/COMAND, general
- Circuit 30t ON status
- Transport mode not active
Audio/COMAND, general
The head unit (A26/17) is the central control unit for the entertainment and communication systems integrated into the vehicle.
The head unit acts as a gateway. The head unit routes the signals from the user interface CAN (CAN HMI) to the components of the telematics CAN (CAN A) and the Media Oriented System Transport (MOST), thereby setting up the communications interface.
The head unit communicates with the following control units over MOST:
- Tuner unit (A90/4) (with code 522 (Audio 20 radio) and code 536 (SIRIUS satellite radio), with code 522 (Audio 20 radio) and code 537 (Digital radio (DAB)))
- TV tuner control unit (N143) (with code 865 (TV tuner))
- Sound system amplifier control unit (N40/3) (with code 810 (Sound system)) or Advanced sound system amplifier control unit (N40/7) (with code 811 (Advanced sound system))
All the displays and menu representations for the Audio/COMAND display (A40/8) are generated by the head unit when a smartphone is not integrated.
Some applications can also be shown on the instrument cluster (A1), e.g.: Audio, telephone, navigation.
Via Ethernet, the head unit receives software updates for all MOST subscribers from the diagnostic connector (X11/4) connected to the diagnostic unit.
The head unit contains the following subfunctions, which are described in separate documents:
- Audio mode function
- Speaker output function
- Mobile phone system function
- Internet connection function
- Video mode, function (With Code 531 (COMAND APS))
- Voice control system, function (With Code 531 (COMAND APS), With Code 357 (Map navigation))
- Navigation mode, function (With Code 531 (COMAND APS))
- Navigation function (With Code 357 (Map navigation))
- TV mode function (With Code 865 (TV tuner))
- Dedicated Short-Range Communications (DSRC), function (With Code 498 (Japan version))
The head unit supports the following subfunctions, which are described in separate documents:
- Emergency call system, function (With Code 360 (HERMES UMTS) or With Code 362 (HERMES LTE))
- Telematics services, function (With Code 360 (HERMES UMTS) or With Code 362 (HERMES LTE))
- Engine sound, function (With Code B63 (Sporty engine sound))
The head unit supports the following function that is described below:
- Integration of smartphones (With Code 14U (Smartphone integration package))
Integration of smartphones (With Code 14U (Smartphone integration package))
The head unit enables the integration of smartphones. In order to ensure that the content is prepared in a vehicle-compatible way, only smartphone applications (apps) that have been developed for the following integration standards are supported:
- CarPlay (Apple)
- Android Auto (Google) (with code 17U (Google Automotive Link smartphone integration))
- CarLife (Baidu) (with code 18U (Baidu CarLife smartphone integration))
To use smartphone applications, the smartphone must be connected to USB port 2 (A90/5x2) (except code 899 (Multifunction telephony)) of the multimedia connection unit (A90/5) or to the front center console USB port (X115/5) (with code 899 (Multifunction telephony)) and the integration standard must be selected using the "Connect" menu. If automatic connection was selected under "Settings", activation via the menu is not applicable.
With the Android Auto integration standard, a Bluetooth® connection between the smartphone and the head unit is required as well as the connection via USB (Universal Serial Bus) (the connection is established automatically).
If a smartphone is connected and the integration standard Android Auto or CarPlay is activated, the head unit is switched to a special operating mode ("Integration mode") in which not all head unit functions can be used. The following functions of the head unit are not available if Android Auto or CarPlay is activated:
- Media player
- Navigation (equipment dependent)
- Voice control system
- Telephony (with CarPlay)
The radio functions, vehicle settings and safety-relevant functions such as the emergency call function (with code 360 (HERMES UMTS) or with code 362 (HERMES LTE)) can still be used.
With Android Auto, the following usage restrictions apply for the telephony: Calls can only be made through the connected smartphone. Telephony with code 379 (Telephone module with Bluetooth® (SAP)) is not possible.
If an integration standard is activated, the head unit supports the smartphone apps in the following manner:
- Volume setting for all audio signals
- Forwarding of operation signals (e.g. from Audio/COMAND control panel (A40/9) (except code 446 (Touchpad only)), from touchpad (A105) (with code 446 (Touchpad only) or with code 448 (Touchpad)), from the voice control system ON button (S163/2s4) (long press), from the accept/terminate phone call button (S163/2s3))
- Forwarding of signals from the driver hands-free system microphone (B25/20)
- Audio outputs (e.g. for voice control or telephony) via the speaker system or forwarding the signals to the sound system amplifier control unit (with code 810 (Sound system)) or to the Advanced sound system amplifier control unit (with code 811 (Advanced sound system))
- Muting radio reception in the head unit (mute function), e.g. for smartphone telephony
- Forwarding of position data (e.g. GPS signals (global navigation system), gyro sensor signals, wheel speed signals)
- Forwarding of video signals generated by the smartphone to the Audio/COMAND display
- Forwarding of status information for displaying in the instrument cluster
The smartphone applications themselves are not shown in the instrument cluster.
When the smartphone is used for calling, the head unit receives and sends the telephone signals from and to the smartphone with Android Auto, over the Bluetooth® antenna (A2/91), with CarPlay over the USB (Universal Serial Bus) connection, either to the multimedia connection unit (except code 899 (Multifunction telephony)) or to the front center console USB port (with code 899 (Multifunction telephony)).
Equipment variants
The following table displays the special equipment and standard equipment (SE) for model 238 as of 01.06.2018 in combination with the head unit and the national versions.
Model 238 as of 01.06.2018
| Function/code | With code 506 (Audio 20 NTG 5.5 radio) | With code 531 (COMAND APS) and code 494 (USA version) | With code 531 (COMAND APS) and code 498 (Japan version) | With code 531 (COMAND APS), except code 494 (USA version) and except code 498 (Japan version) |
|---|---|---|---|---|
| Two USB connectors (in the multimedia connection unit) | SE | SE | SE | SE |
| SD (Secure Digital) card slot (in multimedia connection unit) | SE | SE | SE | SE |
| Media Interface, integrated into the head unit | SE | SE | SE | SE |
| Video mode | Unavailable | SE | SE | SE |
| Voice control system | Special equipment (with code 357 (Map navigation)) | SE | SE | SE |
| Navigation | Special equipment (with code 357 (Map navigation)) | SE | SE | SE |
| Basic telephony | SE | SE | SE | SE |
| Bluetooth® Audio | SE | SE | SE | SE |
| Internet access | SE | SE | SE | SE |
| WLAN (Wireless Local Area Network) hotspot | Unavailable | SE | SE | SE |
| Digital Owner's Manual | SE | SE | SE | SE |
| HD radio | SE (special equipment) (with code 494 (USA version)) | SE | Unavailable | Unavailable |
| Dedicated Short-Range Communications (DSRC) | Unavailable | Unavailable | SE | Unavailable |
| Vehicle Information and Communication System (VICS) | Unavailable | Unavailable | SE | Unavailable |
| Code 14U (Smartphone integration package) | Unavailable | SE | SE | SE |
| Code 351 (Emergency call system (HERMES)) (limited regional availability) | SE (special equipment) (where regionally available) | SE | SE (as of 01.12.2017) | SE (special equipment) (where regionally available) |
| Code 355 (Preinstallation for navigation retrofit) | SE | Unavailable | Unavailable | Unavailable |
| Code 357 (Card navigation) | Special equipment | Unavailable | Unavailable | Unavailable |
| Code 362 (HERMES LTE) (limited regional availability) | SE (special equipment) (where regionally available) | SE | SE | SE (special equipment) (where regionally available) |
| Code 367 (Live Traffic Information) | Special equipment | SE | Unavailable | SE |
| Code 380 (Car telephony package) | Special equipment (except code 494 (USA version)) | Unavailable | Unavailable | Special equipment |
| Code 446 (Touchpad only) | Unavailable | Unavailable | Unavailable | Model 238.3: Special equipment (where regionally available) Model 238.4: Not available |
| Code 448 (Touchpad) | SE | SE | SE | SE |
| Code 518 (Media interface) (Adapter cable for the integrated Media Interface) | Special equipment | Special equipment | Special equipment | Special equipment |
| Code 536 (SIRIUS satellite radio) | Special equipment (with code 494 (USA version)) | SE | Unavailable | Unavailable |
| Code 537 (Digital radio (DAB)) | Special equipment (except code 494 (USA version)) | Unavailable | Unavailable | SE |
| Code 810 (Sound system) | Special equipment | Special equipment | Special equipment | Special equipment |
| Code 811 (Advanced Sound System) | Unavailable | Special equipment | Special equipment | Special equipment |
| code 865 (TV tuner) | Unavailable | Unavailable | SE | Special equipment |
| Code 868 (Large display for Audio 20) | Special equipment | Unavailable | Unavailable | Unavailable |
| Code 897 (Wireless mobile phone charging) | Special equipment | Special equipment | Special equipment | Special equipment |
| Code 899 (Multifunction telephony) | Special equipment | Special equipment | Special equipment | Special equipment |
| Code B63(Sporty engine sound) | Models 238.342/343/442/443: Special equipment Models 238.348/448: SE | Unavailable | Models 238.342/343/442/443: Special equipment Models 238.348/448: SE | Models 238.342/343/442/443: Special equipment Models 238.348/448: SE |
| Code U82(USB charge socket in rear passenger compartment) | Special equipment | Special equipment | Special equipment | Special equipment |
The following table displays the special equipment and standard equipment (SE) for model 238.3 up to 31.05.2018 in combination with the head unit and the national versions.
Model 238.3 up to 31.05.2018
| Function/code | With code 520 (Audio 20 USB) | With code 522 (Audio 20 radio) | With code 531 (COMAND APS) and code 494 (USA version) | With code 531 (COMAND APS) and code 498 (Japan version) | With code 531 (COMAND APS), except code 494 (USA version) and except code 498 (Japan version) |
|---|---|---|---|---|---|
| Two USB connectors (in the multimedia connection unit) | SE | SE | SE | SE | SE |
| SD (Secure Digital) card slot (in multimedia connection unit) | Unavailable | SE | SE | SE | SE |
| Media Interface, integrated into the head unit | SE | SE | SE | SE | SE |
| Video mode | Unavailable | Unavailable | SE | SE | SE |
| Voice control system | Unavailable | Special equipment (with code 357 (Map navigation)) | SE | SE | SE |
| Navigation | Unavailable | Special equipment (with code 357 (Map navigation)) | SE | SE | SE |
| Basic telephony | SE | SE | SE | SE | SE |
| Bluetooth® Audio | SE | SE | SE | SE | SE |
| Internet access | SE | SE | SE | SE | SE |
| WLAN (Wireless Local Area Network) hotspot | Unavailable | Unavailable | SE | SE | SE |
| Digital Owner's Manual | SE | SE | SE | SE | SE |
| HD radio | Unavailable | SE (special equipment) (with code 494 (USA version)) | SE | Unavailable | Unavailable |
| Dedicated Short-Range Communications (DSRC) | Unavailable | Unavailable | Unavailable | SE | Unavailable |
| Vehicle Information and Communication System (VICS) | Unavailable | Unavailable | Unavailable | SE | Unavailable |
| Code 14U (Smartphone integration package) | Unavailable | Unavailable | SE | SE | SE |
| Code 351 (Emergency call system (HERMES)) (limited regional availability) | SE (special equipment) (where regionally available) | SE (special equipment) (where regionally available) | SE | SE (as of 01.12.2017) | SE (special equipment) (where regionally available) |
| Code 355 (Preinstallation for navigation retrofit) | Unavailable | Special equipment | Unavailable | Unavailable | Unavailable |
| Code 357 (Card navigation) | Unavailable | Special equipment | Unavailable | Unavailable | Unavailable |
| Code 360 (HERMES UMTS) (limited regional availability) | SE (special equipment) (where regionally available) | SE (where regionally available) (except code 494 (USA version)) | Unavailable | Unavailable | Unavailable |
| Code 362 (HERMES LTE) (limited regional availability) | Unavailable | SE (special equipment) (with code 494 (USA version)) Special equipment (where regionally available) (except code 494 (USA version)) | SE | SE (as of 01.12.2017) | SE (special equipment) (where regionally available) |
| Code 367 (Live Traffic Information) | Unavailable | Special equipment (except code 494 (USA version)) | SE | Unavailable | SE |
| Code 379 (Telephone module with Bluetooth® (SAP profile)) | Special equipment | Special equipment (except code 494 (USA version)) | Unavailable | Unavailable | Special equipment |
| Code 386 (Comfort telephony) | Special equipment | Special equipment (except code 494 (USA version)) | Unavailable | Unavailable | Unavailable |
| Code 448 (Touchpad) | Special equipment | SE | SE | SE | SE |
| Code 518 (Media interface) (Adapter cable for the integrated Media Interface) | Special equipment | Special equipment | Special equipment | Special equipment | Special equipment |
| Code 536 (SIRIUS satellite radio) | Unavailable | Special equipment (with code 494 (USA version)) | SE | Unavailable | Unavailable |
| Code 537 (Digital radio (DAB)) | Unavailable | Special equipment (except code 494 (USA version)) | Unavailable | Unavailable | SE |
| Code 810 (Sound system) | Unavailable | Special equipment | Special equipment | Special equipment | Special equipment |
| Code 811 (Advanced Sound System) | Unavailable | Unavailable | Special equipment | Special equipment | Special equipment |
| code 865 (TV tuner) | Unavailable | Unavailable | Unavailable | SE | Special equipment |
| Code 897 (Wireless mobile phone charging) | Unavailable | Unavailable | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) |
| Code 899 (Multifunction telephony) | Unavailable | Unavailable | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) |
| Code B63(Sporty engine sound) | Model 238.342/343: Special equipment Model 238.348: SE | Model 238.342/343: Special equipment Model 238.348: SE | Unavailable | Model 238.342/343: Special equipment Model 238.348: SE | Model 238.342/343: Special equipment Model 238.348: SE |
| Code U82(USB charge socket in rear passenger compartment) | Special equipment | Special equipment | Special equipment | Special equipment | Special equipment |
The following table displays the special equipment and standard equipment (SE) for model 238.4 up to 31.05.2018 in combination with the head unit and the national versions.
Model 238.4 up to 31.05.2018
| Function/code | With code 520 (Audio 20 USB) | With code 522 (Audio 20 radio) | With code 531 (COMAND APS) and code 494 (USA version) | With code 531 (COMAND APS) and code 498 (Japan version) | With code 531 (COMAND APS), except code 494 (USA version) and except code 498 (Japan version) |
|---|---|---|---|---|---|
| Two USB connectors (in the multimedia connection unit) | SE | SE | SE | SE | SE |
| SD (Secure Digital) card slot (in multimedia connection unit) | Unavailable | SE | SE | SE | SE |
| Media Interface, integrated into the head unit | SE | SE | SE | SE | SE |
| Video mode | Unavailable | Unavailable | SE | SE | SE |
| Voice control system | Unavailable | Special equipment (with code 357 (Map navigation)) | SE | SE | SE |
| Navigation | Unavailable | Special equipment (with code 357 (Map navigation)) | SE | SE | SE |
| Basic telephony | SE | SE | SE | SE | SE |
| Bluetooth® Audio | SE | SE | SE | SE | SE |
| Internet access | SE | SE | SE | SE | SE |
| WLAN (Wireless Local Area Network) hotspot | Unavailable | Unavailable | SE | SE | SE |
| Digital Owner's Manual | SE | SE | SE | SE | SE |
| HD radio | Unavailable | SE (special equipment) (with code 494 (USA version)) | SE | Unavailable | Unavailable |
| Dedicated Short-Range Communications (DSRC) | Unavailable | Unavailable | Unavailable | SE | Unavailable |
| Vehicle Information and Communication System (VICS) | Unavailable | Unavailable | Unavailable | SE | Unavailable |
| Code 14U (Smartphone integration package) | Unavailable | Unavailable | SE | SE | SE |
| Code 351 (Emergency call system (HERMES)) (limited regional availability) | SE (special equipment) (where regionally available) | SE (special equipment) (where regionally available) | SE | SE (as of 01.12.2017) | SE (special equipment) (where regionally available) |
| Code 355 (Preinstallation for navigation retrofit) | Unavailable | Special equipment | Unavailable | Unavailable | Unavailable |
| Code 357 (Card navigation) | Unavailable | Special equipment | Unavailable | Unavailable | Unavailable |
| Code 360 (HERMES UMTS) (limited regional availability) | SE (special equipment) (where regionally available) | SE (where regionally available) (except code 494 (USA version)) | Unavailable | Unavailable | Unavailable |
| Code 362 (HERMES LTE) (limited regional availability) | Unavailable | SE (special equipment) (with code 494 (USA version)) Special equipment (where regionally available) (except code 494 (USA version)) | SE | SE (as of 01.12.2017) | SE (special equipment) (where regionally available) |
| Code 367 (Live Traffic Information) | Unavailable | Special equipment (except code 494 (USA version)) | SE | Unavailable | SE |
| Code 379 (Telephone module with Bluetooth® (SAP profile)) | Special equipment | Special equipment (except code 494 (USA version)) | Unavailable | Unavailable | Special equipment |
| Code 386 (Comfort telephony) | Special equipment | Special equipment (except code 494 (USA version)) | Unavailable | Unavailable | Unavailable |
| Code 448 (Touchpad) | Special equipment | Special equipment | SE | SE | SE |
| Code 518 (Media interface) (Adapter cable for the integrated Media Interface) | Special equipment | Special equipment | Special equipment | Special equipment | Special equipment |
| Code 536 (SIRIUS satellite radio) | Unavailable | Special equipment (with code 494 (USA version)) | SE | Unavailable | Unavailable |
| Code 537 (Digital radio (DAB)) | Unavailable | Special equipment (except code 494 (USA version)) | Unavailable | Unavailable | SE |
| Code 810 (Sound system) | Unavailable | Special equipment | Special equipment | Special equipment | Special equipment |
| code 865 (TV tuner) | Unavailable | Unavailable | Unavailable | SE | Special equipment |
| Code 897 (Wireless mobile phone charging) | Unavailable | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) |
| Code 899 (Multifunction telephony) | Unavailable | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) | Special equipment (with automatic transmission) |
| Code B63(Sporty engine sound) | Model 238.442/443: Special equipment Model 238.448: SE | Model 238.442/443: Special equipment Model 238.448: SE | Unavailable | Model 238.442/443: Special equipment Model 238.448: SE | Model 238.442/443: Special equipment Model 238.448: SE |
| Code U82(USB charge socket in rear passenger compartment) | Special equipment | Special equipment | Special equipment | Special equipment | Special equipment |
| Audio/COMAND operating instructions | GF82.85-P-0014-11FH | ||
| Engine sound, function | Model 238 (except 238.361/461) up to model year 2021 with code B63 (Engine sound via speakers) Model 238.361/461 up to model year 2021 |
GF82.60-P-0019FH | |
| Internet connection function | Model 238 as of model year 2019 up to model year 2021 |
GF82.60-P-2040FHA | |
| Model 238 up to model year 2019 |
GF82.60-P-2040FH | ||
| Navigation, function | Model 238 up to model year 2021 with code 357 (Map navigation) |
GF82.61-P-2003FH | |
| Speaker output function | GF82.62-P-4212FH | ||
| Mobile phone system, function | Model 238 as of model year 2019 up to model year 2021 |
GF82.70-P-0007FHA | |
| Model 238 up to model year 2019 |
GF82.70-P-0007FH | ||
| Voice control system, function | Model 238 up to model year 2021 with code 357 (Map navigation) Model 238 up to model year 2021 with code 531 (COMAND APS) |
GF82.70-P-3021FH | |
| TV-mode, function | Model 238 up to model year 2021 with code 865 (digital TV) |
GF82.85-P-2011FH | |
| Navigation mode, function | Model 238 up to model year 2021 with code 531 (COMAND APS) |
GF82.85-P-2012FH | |
| Audio mode, function | Model 238 as of model year 2019 up to model year 2021 |
GF82.85-P-2030FHA | |
| Model 238 up to model year 2019 |
GF82.85-P-2030FH | ||
| Video mode, function | Model 238 up to model year 2021 with code 531 (COMAND APS) |
GF82.85-P-2040FH | |
| Telematics services function | Model 238 up to model year 2021 with code 360 (HERMES UMTS) Model 238 up to model year 2021 with code 362 (HERMES communications module LTE) |
GF82.85-P-2060FH | |
| Dedicated Short-Range Communications (DSRC), function | Model 238 up to model year 2021 with code 498 (Japanese version) |
GF82.88-P-2001FHJ | |
| Emergency call system, function | Model 238 up to model year 2021 with code 360 (HERMES UMTS) Model 238 up to model year 2021 with code 362 (HERMES communications module LTE) |
GF82.95-P-0004FH |