Zafira crosscamp electronics spins completely

Hello dear forum. My opel dealer no longer has a solution. Who can help. I met my dream car in Jan 22 with a Opel Crosscamp BJ2020 with 10tkm, but it is usually only in the workshop. It shows all possible defects. Zb Berganfahrhilfe, gear damage, motor damage, and many others. The car is ok so far and you can drive it well. Only when driving you have sometimes the feeling he would have a moment where the power can not be transferred to the road for a fraction like a twist of the wheel. But that’s all….and maybe only imagination because it is only sometimes…. otherwise everything is ok if you forget all the warning lights. The car was the car of the opel autohaus janssen in Garrel and h. Janssen drove it himself. The car was in the technology center (I don’t know the error) in Bremen and there the control unit should have been replaced…. And then I bought at some point. Now he is in Heiligenhaus near Opel crell and speziermann in Heiligenhaus, first delete error code, follow mass points….. After a short time again in the workshop…, then battery in bucket voltage too low… replaced. Now 1000km further.. again the same ANZEigen IN DISPLAY HAVE YOU EXPERIENCES WITH THE PROBLEM MANY GREAT MARTIN