Mercedes Viano Audio System Failure

I had something similar with my old Saab. The head unit slowly died. Audio went bad, then dashboard controls quit. Finally, nothing. Check the fuses first, then suspect the display.

Thanks. When you say check fuses, do you mean just the audio ones, or something more like a CAN bus fuse? Also, did your Saab have speaker crackle before it died?

Start with the audio fuses. Speaker crackle wasn't happening for me. With the stored error, a workshop check might be best. Intermittent problems are hard to find alone.

I understand. I'll get it professionally checked. The shop said the display unit was bad, like I thought, and replacing it fixed it. Thanks.