General information

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CAUTION: Disconnect battery ground wire before working on electrical system.

On vehicles with Telematics, activate Telephone/Telematics Control Module J526 service mode before disconnecting Battery A → Service mode, activating/deactivating .

If the Battery A is reconnected, follow the procedure for disconnecting and connecting the Battery A → - 27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL . Deactivate Telephone/Telematics Control Module J526 service mode → Service mode, activating/deactivating .

Telephone systems

Telephone fixed installation
Cellular telephone preparation

With the cell phone preparation with Bluetooth Antenna R152 , all Cellular Telephones R54 approved by Audi can be operated with the Bluetooth interface.

Information on operation and approved cellular phone types:

www.audi.de/telefon

It is not possible to connect other devices via Bluetooth, for example headset, laptop, PDA, or similar.

Diagnosis is performed using "Guided Fault-Finding".

Repairs on antenna wires → - 97 WIRING .

Repair to CAN bus lines → - 97 WIRING .