Why is there no sound after successfully connecting to Volkswagen Bluetooth?
3 Answers
If your Volkswagen Bluetooth connects successfully but there's no sound, it may be because the volume on your car navigation system or mobile phone isn't turned on. Here are specific explanations about Volkswagen: 1. Background: Volkswagen (German: Volkswagen) is an automobile manufacturer headquartered in Wolfsburg, Germany, and is the core enterprise of the Volkswagen Group, one of the world's four largest automobile producers. 2. Technological Development: The TSI engine's direct injection technology enables precisely atomized fuel to mix thoroughly and evenly with intake air, filling the entire cylinder and achieving homogeneous combustion across all operating conditions. This complete fuel combustion maximizes the energy stored in every drop of fuel, resulting in high power output from the engine, excellent dynamic response, while maintaining low fuel consumption levels.
I was also quite confused when I first encountered this situation, but later found out it's mainly due to a few reasons. Check if the volume knob of the car audio was accidentally muted - this is the most easily overlooked issue. Then focus on the media source settings on the central control screen. After Bluetooth connection is established, you must manually switch to 'Bluetooth Audio' in the audio source options, otherwise it will default to radio mode. There's also a rather mysterious situation: the individual volume of your phone's music app might have been muted. Try pulling the media volume to maximum on your phone. If none of these solve the problem, it's likely a bug in the car's system. Press and hold both the central control power button and MENU button for ten seconds to force restart the system - this works for most Volkswagen models. Finally, check your phone's Bluetooth settings to see if it's simultaneously connected to other devices that might be hijacking the audio output.
As a seasoned driver who often helps fellow car enthusiasts with troubleshooting, I suggest you follow these three steps for diagnosis: First, check the multimedia buttons on the steering wheel. Last time, a car owner had their song-switching button stuck, causing the mute function. Next, verify the Bluetooth audio permissions in the infotainment system. For Android phones, make sure the 'Media Audio' switch is turned on. Here's the key point: Volkswagen MQB platform vehicles are most prone to Bluetooth module power supply issues. After turning off the engine, open the car door and wait five minutes for the entire vehicle to power down, allowing the Bluetooth module to completely reboot and restore functionality. There's also a hidden setting: Disable the 'Call Priority' mode in the infotainment system settings, otherwise the audio won't switch back to music after phone calls. Finally, check your phone's system updates, as iOS 16.4 once had a Bluetooth audio output bug. If all else fails, visit the 4S shop to flash the infotainment firmware—it only takes 38 minutes to complete.
