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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Communication (1 Of 2) >> 91 Communication >> Telephone System >> Overview - Telephone >> Overview - Telephone, AUDI Phone Box, 9ZE

Overview - Telephone, AUDI Phone Box, 9ZE

The Telephone Baseplate -R126- (Audi phone box) is installed in the center console. It can be operated using the MMI Infotainment system or by 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 (Left Front Microphone -R140-) is connected directly to the Information Electronics Control Module 1 -J794-. Connected to the Data Bus on Board Diagnostic Interface -J533- on the IW3.

The connection to the cellular network takes place via the Telephone Antenna -R65-.

The antenna connection is located on the Cellular Telephone Amplifier -R86-.

9ZE - Audi phone Box

GWWA91-12556Courtesy of AUDI OF AMERICA, LLC
  1. Roof Antenna -R216-
  2. Front Information Display Control Head -J685-, Display in Center of the Instrument Panel
  3. CAN Bus
  4. Multimedia System Control Head -E380- in the Center Console
  5. Information Electronics Control Module 1 -J794- in the Glove Compartment
  6. Sound Systems
  7. Microphone Unit in Front Roof Module - R164- in the Front Interior Lamp -W1-
  8. Telephone Baseplate -R126- with Cellular Telephone - R54- in the Center Console Storage Compartment
  9. Cellular Telephone Amplifier -R86- in the Luggage Compartment on the Right Rear Side

Antennas

9ZE - Audi phone box without Audi connect and without emergency call function EL0/IW0:

Overview Antennas

GWWA91-12618Courtesy of AUDI OF AMERICA, LLC
  1. Information Electronics Control Module 1 -J794-
  2. Telephone Baseplate -R126-
  3. Cellular Telephone Amplifier -R86-
  4. not installed
  5. not installed
  6. Roof Antenna -R216-
    • Telephone Antenna -R65-, EL0 and IV0/IW0

Antenna, removing and installing. Refer to COMPONENT LOCATION OVERVIEW - ANTENNA SYSTEMS .

Fault Finding is performed using the "Guided Fault Finding"  on the Vehicle Diagnostic Tester.

Antenna wires, repairing. Refer to ANTENNA WIRES, REPAIRING .

Notes on Bluetooth Technology

A standardized radio connection is used for data transfer between the Information Electronics Control Module 1 -J794- and Cellular Telephone -R54- - Bluetooth Technology.

An additional transmitter/receiver with Bluetooth Antenna -R152- is located in the Information Electronics Control Module 1 -J794-.

The range of the radio connection is approximately 10 m.