Overview - Infotainment System, MMI Navigation, 7T2

7T2 - MMI Navigation 

• Information Electronics Control Module 1 -J794- with CD player/SD card reader/navigation system integrated in the instrument panel
• Front Information Display Control Head -J685-, display in center of the instrument panel
• Multimedia System Control Head -E380- in the center console, QW1
• Radio -R- integrated in the Information Electronics Control Module 1 -J794-, 8DP
• CD Changer -R41- in glove compartment, 7A2
• External Audio Source Connection -R199- in the center console, UF7
• Digital Sound System Control Module -J525- in the luggage compartment on the left rear side
• Sound systems: Standard/BOSE, 9VD/8RY
• Bluetooth Hands-Free Calling, 9ZX
• Voice recognition system, QH1

Optional 

• Digital Radio -R147- integrated in the Information Electronics Control Module 1 -J794-, only Europe/Rest of World and QV3
• Radio System, Satellite -R146- integrated in the Information Electronics Control Module 1 -J794-, only USA and QV8
• Cell phone preparation, 9ZF
• Multifunction Steering Wheel

Courtesy of AUDI OF AMERICA, LLC

1. Roof Antenna -R216-
2. Front Information Display Control Head -J685-, Display in Center of the Instrument Panel
3. Multimedia System Control Head -E380- in the Center Console
4. Information Electronics Control Module 1 -J794- Inside the Instrument Panel
5. External Audio Source Connection -R199- in the Center Console
6. Data Bus On Board Diagnostic Interface -J533- Under the Rear Bench Seat
7. Digital Sound System Control Module -J525- in Luggage Compartment on Left Rear Side
8. MOST Bus
9. CD Changer -R41- in Glove Compartment
10. Left Front Microphone -R140-, Microphone Unit in Front Roof Module -R164- in the Front Interior Lamp -W1-

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"  on 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 disconnecting the connectors: Attach :VAS6223/9  .

Courtesy of AUDI OF AMERICA, LLC

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.

Repairing fiber optic cables. Refer to FIBER-OPTIC CABLES, REPAIRING .