VW Arteon Audio System Complete Failure Fixed

Had the exact same sound distortion issue with my 2019 VW Passat last winter. As someone with some car audio experience from previous repairs, I first thought it was a simple system glitch. Tried all the basic fixes like you did, fuse checks, system resets, different audio sources. The complete audio failure across all sources pointed to a deeper issue. Took it to my regular workshop where they diagnosed a defective bass speaker that had shorted, causing the entire sound system to shut down as a protective measure. The repair included: Full diagnostic scan, Replacement of the faulty bass speaker, System reset and audio testing, Labour costs Total repair came to 280€ and restored perfect sound quality and audio connectivity. Everything works flawlessly since then, including Bluetooth and radio. Before suggesting specific solutions, could you share: Did this start suddenly or gradually? Are there any warning messages on the infotainment screen? Can you hear any clicking or popping sounds when adjusting volume? Which audio system is installed (standard or premium)? This info would help determine if your issue matches what I experienced with my Passat.

I have the same problem and took my Arteon to the last service just 2 weeks ago at 136344km. The technicians ran a full diagnostic scan and found the auxiliary input module was faulty, causing a complete audio system shutdown. Like your Passat case, it affected all sound outputs including radio and car speakers. Their initial diagnosis pointed to a wiring issue, but after deeper testing, they identified the module needed replacement. The repair included: Module replacement, System recalibration, Full audio testing Total cost was 320€ but solved all sound distortion issues. The Bluetooth functionality returned immediately after the repair. Quick tip: Make sure to document any error codes or warning messages that appear. This helped speed up the diagnostic process in my case.

Thanks for the update about your Arteon repair. The auxiliary input module issue seems more common than we thought in these models. My Passat repair was pretty similar price-wise, and good to hear the fix restored all audio functions like it did for me. Since both our cars had complete audio failure, this could be a recurring manufacturing issue in the VW sound system components. The fast diagnostic and repair turnaround is promising, shows the workshops are getting familiar with these volume control and audio connectivity problems. Have you noticed any other electrical quirks since the repair? My car speakers occasionally had minor sound distortion for a few days after the fix, but that settled completely after about a week of regular use. Just something to watch for during your first few weeks post-repair. The 320€ repair cost seems standard based on my experience. Both our cases show these audio system failures are fixable without major component replacements, which is reassuring for other owners facing similar issues.

Thank you for sharing those details about the Passat repair. The auxiliary input module fault in my Arteon matches what several others reported in recent service bulletins. My volume control and sound quality are now perfect across all audio sources. No sound distortion or other issues since the repair was completed. The 320€ cost was worth it considering the complete audio system restoration. For reference, these were the exact symptoms that led to diagnosis: Complete radio silence across all audio sources, Working display but no speaker output, Failed Bluetooth connectivity, No response when adjusting volume, Zero sound from car speakers The workshop confirmed this is becoming a known issue with this model. They now keep the replacement modules in stock which helped speed up my repair time. I recommend anyone experiencing similar audio system failures to get a proper diagnostic scan rather than attempting DIY fixes. The module replacement resolved all issues and restored full functionality.