Problem with the navigation system of an Opel Cascada 2015 - suspected error in the control unit communication

Hello, I had a similar problem with my 2013 Opel Insignia. I am not a car mechanic, but I do have some experience with cars. At my garage, we discovered that the CAN-BUS or MOST bus was damaged. That's why the navigation system was going crazy. It cost 235.0 euros to fix it. Can you please share more info about your car? Maybe I can better estimate what exactly the problem is.

(Translated from German)

Hey, thanks for your answer. My Opel Cascada has already run 197514 km and its last inspection was recently. However, the navigation system was still ok then. Your answer gives me hope that the repair won't cost a fortune. With the CAN bus or MOST bus, that also sounds like something you can't necessarily do yourself, or am I wrong? I'm not a mechanic either, but maybe I can do it with a friend. Does anyone have experience with such a repair?

(Translated from German)

Hey, no problem, I'm glad I could help. Yes, you're absolutely right. Repairing a CAN bus or MOST bus is not a job for DIY enthusiasts. It is highly recommended to have it done in a specialist workshop. It's easy to do something wrong and then it becomes really expensive. Even if the idea of saving money is tempting, I strongly advise against it. I tried it once and it was a disaster. So, keep your hands off it and spend a little more money instead. Believe me, it's worth it!

(Translated from German)

Hey, thanks for the advice. I realize that this is beyond my capabilities. I'd better take my car to a specialist garage then. I just hope it costs as little as possible. Thanks again for your helpful answers and your time. You have really helped me a lot. I'll let you know how it goes after the repair. See you then, take care!

(Translated from German)