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Media interface function - GF82.60-P-2020GQ

MODEL 164.1 with CODE (518) Media interface as of model year 2009/YoM 08 model refinement package 

MODEL 164.8, 251.0/1 with CODE (518) Media interface as of model year 2009/YoM 08 

Function requirements, general 

IMPORTANT Depending on the equipment installed one of the following control units will be installed, hereafter referred to as the "audio unit":

Media interface, general 

The media interface function is also referred to as the universal device connecting point. It allows the following portable terminals to be connected to the "audio equipment" via an adapter cable, the media interface connector 1 (X18/67), the media interface control unit (N125/1) and the Media Oriented System Transport (MOST):

IMPORTANT As of 1.7.09 (without code (510) Audio 20 with CD changer) With audio source "Aux" (via media interface adapter cable (accessory)) "Standard" and "Boost" can be selected under the "Volume" menu. The input level is increased by selecting "Boost".

IMPORTANT The conventional AUX jack installed in the glove box is eliminated.

Operating instructions 

The portable devices listed are controlled using one of the following controls:

Menu guidance and graphic representation of the menu guidance is accomplished on the "Audio equipment" display and is dependent on the specific portable device connected.

Function sequence for media interface 

The media interface control unit is supplied with power via two direct lines (circuit 31 and circuit 30). If a portable device is connected, it is recognized by the media interface control unit via the following route:

The media interface control unit then transmits a signal to the COMAND controller unit, which then switches to the connected source.

Simultaneously the audio signals and data are transferred from the portable device connected to the "Audio equipment" via the following route:

The video signals and data are transferred from media interface connector 1 to the "audio equipment" via direct lines.

The user can now display the audio signals and data or video signals and data on the display of the "audio equipment" by selecting the "Media Interface" menu item in the "Disk" menu and the relevant "Media Interface" or "Music" submenu item. The video signals and data are transferred to the "Audio equipment" display internally in the "Audio equipment".

The "Media Interface" menu item in the "Disc" menu and the relevant submenu item are selected using one of the following controls:

The control signals from the control buttons on the "audio equipment" are processed internally.

The control signals of the multifunction steering wheel button groups are forwarded to the "Audio equipment" via the following route:

After evaluation of the control signals in the "Audio equipment", they are forwarded by the "Audio equipment" to the portable device connected via the following route:

The portable device connected evaluates the control signals and sends the corresponding audio signals and data to the "Audio equipment" via the following route:

The video signals and data are transferred from media interface connector 1 to the "audio equipment" via direct lines.

The video signals and data representation on the "Audio equipment" display takes place internally in the "Audio equipment".

In vehicles with code (810) Sound system, the audio signals and data are output by the "audio equipment" via the MOST to the amplifier for sound system (N40/3) and from there via direct lines to the following speakers:

IMPORTANT The audio signals and data for the subwoofer speaker (H4/29) travel via the MOST from the "audio equipment" to the amplifier for sound system and from there, via the subwoofer amplifier (N40/9) using direct lines, to the subwoofer speaker.

In vehicles without code (810) Sound system, the audio signals and data are output by the "Audio equipment" via direct lines to the following speakers:

REFER TO SYSTEM WIRING DIAGRAMS Electrical function diagram for media interface, function Model 164 PE82.85-P-2059-97MAA
Model 251 PE82.85-P-2059-97RAA
  Instrument cluster, component description A1 GF54.30-P-6000GM
  Radio control panel, component description A2
With code (510) Audio 20 with CD changer		 GF82.60-P-3116GQA 
  Radio/navigation unit, component description A2/56
With code (525) MB Audio 50 APS radio		 GF82.61-P-4111GQA 
With code (511) Audio 50 APS with DVD changer GF82.61-P-4111GQ 
  Component description for COMAND operating, display and controller unit A40/3
With code (528) COMAND with DVD changer, without navigation or
With code (527) COMAND APS with single DVD drive (with navigation) without code (498) Japan version or
With code (512) COMAND APS with DVD changer		 GF82.85-P-3134GQ
With code (527) COMAND APS with single DVD drive (with navigation) with code (498) Japan version GF82.85-P-3134GQJ
  Sound system amplifier, component description N40/3
With code (810) Sound system		 GF82.62-P-6003GQS
  Component description for steering column tube module control unit N80 GF54.21-P-6051GM
  Media interface control unit, component description N125/1 GF82.60-P-5000GQ 
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