Multi Media Interface

Multi Media Interface

General Information

The MMI includes the following: control modules, an external audio source connection, a DVD drive, the navigation system (with a hard drive disc) and a voice recognition system. All these are integrated in the information electronics control module 1 (J794).

The radio/ DVD changer (R161) and the digital sound system control module (J525) are connected externally via the MOST bus. The basis sound systems are controlled directly by the radio.

MMI Maximum Equipment

• The information electronics control module 1 (J794) inside the instrument panel at the top contains the CD player/DVD player/navigation system/voice control system/SD memory card reader

• Internal Hard Drive (HD) disc storage for storing navigation data and MP3 files

• Multimedia system control head (E380) in the front of the center console

• Front information display control head (J685) (display) in center of the instrument panel

• DVD changer (R161) (6G0) inside the glove compartment

• External audio source connection (R199) (interface) inside the front of the center console

• Digital Sound System Control Module (J525) in the luggage compartment (left rear)

• Sound systems: BOSE(R) / Bang & Olufsen(R) (8RY/8RF)

• Radio in the back of the luggage compartment on the right side

• Satellite radio (R146) integrated inside the radio

• Optional Bluetooth hands-free calling (9ZX)

• Optional multifunction steering wheel

The MOST bus performs the system data exchange in the MMI.

The connection to the other data bus systems in the vehicle are provided by the data bus on board diagnostic interface (J533).

Fault finding is performed via "Guided Fault Finding" in the Vehicle Diagnostic Tester.

Notes on MOST bus

The optical data bus "MOST bus" is used in addition to the Controller Area Network (CAN) bus.

A fiber optic cable is used as a "connecting cable". Fiber optic cables are routed inside corrugated tubes for protection.

Replace the complete fiber optic cable if possible.

The front surface of the connectors must not be dirty.

If the connectors are disconnected: Install the protective cap for cable connector (VAS 6223/9).

When installing fiber optic cables, make sure not to go below the minimum bending radius of 25 mm. Do not crush or kink fiber optic cables.