Adam Electrical Malfunction Navigation Failure

Sounds familiar! I've got an Adam too and had similar symptoms. Error codes galore, and the nav system was completely dead. Have you checked for any recent software revisions? That could be the culprit.

I have not checked for revisions myself. Is there any way to check that myself or does it require special equipment?

Unfortunately, you'll likely need to visit a workshop. They have the diagnostic tools to properly check the ECU software version and perform a recalibration if necessary. It sounds like a software glitch, and they can likely reprogram the control unit for you. I ended up paying 240€, so be prepared for that kind of cost.

Thank you for the advice. I will schedule an appointment with a workshop to have the vehicle software checked and revised.