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Overview - Telephone, USA, Through 11/03/2008

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The telephone system consists of the cell phone pre-installation.

The Telephone Transceiver -R36- is integrated in the MMI infotainment system via the CAN/MOST bus. It also has a Bluetooth Antenna -R152-.

The Telephone Baseplate -R126- is installed in the center console. The operation is performed via the Multimedia System Control Head -E380- (MOST), the Radio -R- (CAN) or via the Cellular Telephone -R54-.

The microphones for the Microphone Unit In Front Roof Module -R164- are integrated in the Front Interior Lamp -W1-. One microphone is connected (Telephone Microphone -R38-) with the Telephone Transceiver -R36-.

Fig 1: Hands-Free Mobile Telephone System - MMI, Layout
GWWA91-10291Courtesy of AUDI OF AMERICA, LLC
  1. Telephone Baseplate -R126- with Cellular Telephone -R54-
  2. Front Information Display Control Head -J685- in Center of the Instrument Panel
  3. Front Information Display Control Head Control Module -J523-, Behind the Instrument Panel
  4. Multimedia System Control Head -E380- in the Front of the Center Console
  5. Data Bus On Board Diagnostic Interface -J533- Behind the Glove Compartment On the Left Side
  6. Instrument Cluster Control Module -J285- in the Instrument Panel
  7. Steering Column Electronics Control Module -J527- on Steering Column at Steering Column Switch
  8. Multifunction Steering Wheel
  9. Microphone Unit in Front Roof Module -R164- in the Front Interior Lamp -W1-
  10. Digital Sound System Control Module -J525- Behind the Luggage Compartment Left Side Trim
  11. Sound Systems
  12. Telephone Transceiver -R36- Under the Front Passenger Seat
  13. Microphone Unit in Front Roof Module -R164- (Telephone Microphone -R38-) in the Front Interior Lamp -W1-
  14. Bluetooth Antenna -R152- at Telephone Transceiver -R36-
  15. Radio/Telephone/Navigation System Antenna -R52-

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

Notes on Bluetooth Technology

A standardized radio connection system is used to transmit data between Telephone Transceiver -R36- and Telephone Handset -R37- /Cellular Telephone -R54- - Bluetooth technology.

An additional transmitter/receiver unit is installed in the Telephone Transceiver -R36-. A separate Bluetooth Antenna -R152- connects the Telephone Transceiver -R36- and Telephone Baseplate -R126- /Cellular Telephone -R54- so that the Telephone Handset -R37- /Cellular Telephone -R54- can be operated wirelessly.

The range of the radio connection is approximately 10 m.

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