XC90T8 and culant from Volvo

Dear half-sweden, I have a T8 Bj 2016 with 61500km with the following problem. He suddenly got off the stand and didn’t hit any more and announced with a blow/knall no longer to repuperate, after 10-20 meters he has recuperated again. Now the (two independent) service advisors told me that it will probably be the electric/gear unit, Volvo would want to make an update for cost reasons. Of course an update does not fix any mechanical Proble 😉 but if Volvo says that. So I was back in the workshop a few days later, then the inverter was replaced ^^ , of course also without success and I should take over the cost of 741,-€, because my guarantee takes over only 80% of the costs. A culant request was rejected. After my vacation I am back with the same problem to the workshop, there he is now for 3 weeks. It’s the gear Erad and electric Erad defective and metal chips in the gear and I should now pay once again 941,-€. Volvo doesn’t like to take part in terms of the premium brand? I don’t like to say that I’t share the same with my warranty.