Driver's voice sounds muffled or background noise sounds very loud to other caller during Bluetooth calls
Audi technical service bulletin A911394 2034842- for 2012-2014 Audi A7.
- Bulletin number
- A911394 2034842-
- Component
- Equipment: electrical
- Summary
- Driver's voice sounds muffled or background noise sounds very loud to other caller during Bluetooth calls. Voice recognition commands are not recognized or voice recognition accuracy is poor. The location of the microphones within the roof module make them susceptible to interference by the vehicle air vents and climate control settings. When the center air vents are pointed upward, they can cause a "swirling" effect that affects the audio quality of Bluetooth® and voice recognition. This is particularly evident on hot days when the A/C system is set to "auto".
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