WARNING | Disconnect the battery earth cable before working on the electrical system. |
| On vehicles fitted with telematics system, activate the service mode for the telephone/telematics control unit -J526- before disconnecting battery -A- → Chapter. |
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| When re-connecting battery -A-, make sure to adhere to correct sequence for connecting and disconnecting battery -A- → Electrical System; Rep. Gr.27. Deactivate the service mode for telephone/telematics control unit -J526- → Chapter. |
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| Telephone transmitter and receiver unit -R36- |
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| Radio, telephone and navigation system aerial -R52- |
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| Telephone bracket -R126- with mobile telephone -R54- |
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| Telephone microphone -R38- |
| The telephone transmitter and receiver unit -R36- is fitted with a Bluetooth aerial -R152-. This enables all mobile telephones -R54- approved by Audi with Bluetooth interface to be operated with the mobile phone system installed in the vehicle. |
| It is not possible to connect up other devices via Bluetooth, for example headset, laptop or PDA. |
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