Entertainment Systems: Description and Operation

MMI Infotainment

The MMI consists of:

MMI Navigation (7T2)

• The Information electronics control module 1 (J794) inside the instrument panel holds the CD player/navigation system/SD memory card reader/radio.

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

• Integrated radio

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

• CD changer (R41) (7A2) 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: Standard/BOSE (9VD/8RY)

• Bluetooth(R) interface (9ZX).

• Optional cell phone preparation (9ZF).

• Optional integrated digital radio (R147) (QV3)

• Voice recognition system

MMI Navigation Plus (7T6)

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

• Internal hard drive disc storage (HD) for storing navigation data and MP3 files.

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

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

• 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: Standard/BOSE/Bang & Olufsen (9VD/8RY/8RF)

• Radio inside the luggage compartment, on the left side and in the rear

• Bluetooth(R) interface.

• Optional Bluetooth car phone (9ZW)

• Digital radio (R147) (QV3) integrated inside the radio (R)

• Voice recognition system

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" using the Vehicle diagnostic tester.

Notes on MOST bus

The optical Data bus "MOST bus" is used in addition to the CAN bus.

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

Replace complete fiber optic cable if possible.

The front surface of the connectors must not be dirty.

If the connectors are disconnected: Attach 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 (1 in.). Do not crush or kink fiber optic cables.