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******** Audi A8L Quattro Sedan (4E8) V8-4.2L (BVJ) Technical DIAGNOSIS AND REPAIR # 911054 Date: 100819


Cell Phone - Voice Activation Inoperative



91 Voice dialog system doesn't work on vehicles with phone preparation



91 10 54



217



2013274/6



August 19, 2010



Supersedes Technical DIAGNOSIS AND REPAIR Group 91 number 09-75 dated November 2, 2009 for reasons listed below.



Affected Vehicles



Condition



^ The message Button vacant appears when pressing the Push To Talk button on the steering wheel.



^ In the telephone setup menu, the message Voice operation cannot be activated is displayed in the Sound Settings option.



^ Usually the issue occurs after replacing the Front Information Display Control Head (Headunit J523) or after retrofitting the Speech Dialog



System - Control Module J507.



^ Vehicles with Telephone Transceiver R36 (UHV) in combination with the Speech Dialog System - Control Module J507 (SDS) are affected.



Technical Background



The Speech Dialog System Control Module J507 may interfere with the internal speech command function of the Telephone Transceiver R36.



Production Solution



Not applicable.



Service



1. The Internal Speech Command function of the Telephone Transceiver R36 must be deactivated.



2. Change the coding of the Telephone Transceiver R36 - Coding (Addressword 77) to 10900.



3. A Reset via Headunit Adaptation channel 111 (set to 1) of the MMI system is necessary before verifying the proper function.



Warranty



This TSB is informational only and not applicable to any Audi warranty, as it is already included in the control unit installation.



Additional Information



All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service



manuals for the latest information.