Cell Phone - Bluetooth(R) Hands-Free Volume Too Low
91 Bluetooth Phone Preparation: Hands-free Volume Too Low91 09 11
2020190/1
March 9, 2009
Vehicle Information
Condition
During a hands-free telephone call via the Bluetooth phone preparation, the volume level in the vehicle is too low. Only the CAN-based generation 3 radio (without navigation) from model year 2009 is affected.
Technical Background
The Adaptation channel value for phone volume level is incorrect.
Production Solution
Not applicable.
Service
Ensure value 11 is stored in Adaptation channel 139 in the Bluetooth phone preparation control unit (address word 77). If necessary, change and store the correct value.
Warranty
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual. Claims are subject to review or audit by 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.