MMI Infotainment System, From 9 November 2009
MMI Infotainment System, From 9 November 2009
The MMI from 06.01.09 is an advancement of the MMI currently in use. The cell phone preparation, External Audio Source Connection (AMI), CD- and DVD drives and navigation (with hard disc drive) are integrated in one unit Information Electronics Control Module 1 (J794).
The Radio/CD changer (R41) and Digital Sound System Control Module (J525) are connected via the MOST Bus. The basis sound systems are controlled directly by the radio. Satellite Digital Audio Radio Service (SDARS) is optionally integrated in the radio.
The MMI Infotainment system is available in the following equipment levels:
MMI
• The Information Electronics Control Module 1 inside the center console at the top contains the CD player/DVD player/navigation system/SD memory card reader.
• Internal Hard Drive Disc storage (HDD) for storing navigation data and MP3 files
• Multimedia System Control Head (E380) in center console
• Front Information Display Control (J685) in the instrument panel
• CD changer (R41) under the center armrest
• Optional External Audio Source Connection (R199) (interface) inside the glove compartment
• Digital Sound System Control Module (J525) in the luggage compartment (rear right)
• Sound systems: Standard/BOSE/Bang and Olufsen
• Radio (R) on the right side of the luggage compartment in the rear is optional with Satellite Radio (R146)
• Optional multifunction steering wheel
• Optional Bluetooth hands-free calling
The MOST BUS performs the system data exchange in the MMI.
The connection to the other 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 Vehicle Diagnosis, Testing and Information System (VAS5051B).
Information Electronics Control Module 1 (J794) MMI Overview
The Information Electronics Control Module 1 is a 3rd generation MMI. Depending on the equipment level, the Information Electronics Control Module 1 contains the following known control modules from the 2nd generation:
1 Front Information Display Control Head Control Module (J523)
2 CD Player (R89)
3 Navigation System With CD Drive Control Module (J401)
4 SD Memory Card Reader
5 Speech Input Control Module (J507)
6 Bluetooth Hands-Free Calling
7 Not Installed
8 Internal Hard Drive Disc Storage (HDD)
9 Information Electronics Control Module 1 (J794)
Radio (R) MMI Overview
Depending on the equipment level, the radio contains the following known control modules from the 2nd generation:
1 Digital Sound System Control Module (J525)
2 Radio (R)
3 Radio (R) AM/FM Tuner
4 Satellite Radio (R146)
5 Not Installed
MOST Bus MMI
1 Front Information Display Control Head (J685)
2 Information Electronics Control Module 1 (J794)
3 MOST Bus
4 CD Changer (R41)
5 Not Installed
6 Radio (R)
7 Digital Sound System Control Module (J525)
8 Data Bus OBD Interface (J533)
9 Multimedia System Control Head (E380)
Notes on MOST Bus
In addition to the CAN bus systems, the optical data bus system MOST bus is used.
A fiber optic cable is utilized as the connecting cable. Fiber optic cables are routed inside corrugated tubes for protection.
Replace complete fiber optic cable if possible.
Make sure that the face surfaces of the connectors do not become soiled.
If the connectors are disconnected: Attach Protective Cap For Cable Connector (VAS 6223/9).
Observe the minimum bending radius of 25 mm when routing fiber optic cables. Fiber optic cables must not be pinched or bent.