Mokka MOST Bus Fault

Oh, that sounds incredibly frustrating! I had almost exactly the same thing happen in my Mokka! No tunes, nav dead, the whole shebang. For me the problem was somewhere in the fiber optics – have you checked those?

Thank you for your reply. Could you please elaborate a bit more about the fiber optics? Where exactly should I be looking, and what am I looking for?

Alright, so I am no expert, but in my case I remember something about the shop mentioning that the fiber optic cable that goes between the audio system components sometimes gets damaged or disconnected. I would say it is worth checking the connections, but honestly, if it is a MOST bus fault, like you suspect, it gets pretty complicated fast. You might need someone with proper car diagnostics equipment to pinpoint the faulty control unit. I ended up taking mine to a local workshop, and they sorted it out for around 1000€.

Thank you very much for your assistance. I appreciate the information and will take it to a professional as recommended.