How to restore sound after Audi A3 is muted?
1 Answers
Audi A3 sound restoration method: 1. Locate the volume control knob in the center console of the vehicle. 2. Rotate the knob clockwise to maximum volume. 3. Press and hold the voice control button on the right side of the multifunction steering wheel for five seconds. 4. Press the vehicle's one-touch start button to turn off the engine. 5. Press the button again to restart the engine, and the vehicle's sound will be restored. Common Audi MMI system faults and solutions: 1. If the 3G MMI shutdown screen doesn't show the Audi logo, modify the 5F information control unit coding, restart, then revert to original coding. 2. If 3G MMI playback sources (DVD, SD, CD, Juxbook) appear gray and unreadable, it indicates J794 unit damage - replace it. 3. If 3G MMI navigation interface appears in English, switch the MMI interface to English and then back. 4. For occasional 3G MMI system freezes, black screens, or no sound, replace J794 unit if system upgrade fails. 5. For cold-start navigation initialization issues with 3G MMI system, replace J794 unit if system upgrade fails.