2017 Audi A3 (8PA) L4-2.0L Turbo (CBFA)Technical Service Bulletin # 911129 Date: 111220

Cell Phone - Bonding Tone Level Too High/Too Low
91 Bluetooth phone preparation: Bonding tone volume level
91 11 29
2019821/4
December 20, 2011.
Supersedes Technical Service Bulletin Group 91 number 10 - 35 dated June 21, 2010 for reasons listed below.
Affected Vehicles
Condition
The Bluetooth telephone bonding tone is too loud or quiet for the customer.
Technical Background
When a telephone is connected to the vehicle via the Bluetooth wireless connection, a tone is played over the audio system. The volume of this tone
correlates to the volume level of the phone preparation voice control. This volume level is independent of the volume during telephone calls.
Production Solution
Not applicable.
Service
On standard vehicles:
The volume of the bonding tone can be raised or lowered by changing the voice control volume level.

1. Activate the phone preparation voice control using the Talk button on the steering wheel and raise or lower the volume to an acceptable level.


2. Explain the correlation between the bonding tone and voice control volume level to the customer.

On convertible vehicles:
Voice control is disabled on convertible models such as the A4 Cabriolet and TT Roadster. On these vehicles, the bonding tone volume level can be
changed using the following procedure:
2010 Audi A3 (8PA) L4-2.0L Turbo (CBFA) Page 83
1. Temporarily enable voice control by changing the Bluetooth phone preparation module coding. Only position 2 must be changed to a value of 7:
Vehicle Self Diagnosis >> 77 - Telephone >> 007 - Coding >> XXXX7X.

1. Exit the diagnosis session and cycle the vehicle ignition.


2. Activate voice control using the Talk button (Figure 1, Area 1) on the steering wheel and say the command Help.


3. While the system is playing the help message, raise or lower the volume level to an acceptable level. The right-side steering wheel thumbwheel

(Figure 1, Area 2) or the radio volume knob can be used.

1. Exit the voice control dialogue by pressing the Talk button again.


2. Change the control module coding back to the original value: Vehicle Self Diagnosis >> 77 - Telephone >> 007 - Coding >> XXXX7X.


3. Exit the diagnosis session and cycle the vehicle ignition. Verify the Talk button is inactive and that the bonding volume is now acceptable to the

customer.
Warranty
This TSB is informational only and not applicable to any Audi warranty.
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.