DSG gearbox “explodes”

My Ateca 2.0 TDI has four-wheeled and 190 hp, is built in 2017 and now has 72000 km on the speedometer. Until yesterday I had no problems with the car, the vehicle was always in inspection as usual. Yesterday, however, it was quite unexpected “in the engine room” while driving through Avignon in Provence suddenly “schattering”, the car was jerking and it felt as if I had run over a bit of metal on the road. A few hundred meters further on. I am then again. and saw a liquid track behind the car and found metal parts on the ground behind the car. Diagnosis: Gear damage (parts of the housing have been blown away). On the one hand I have to see how the car and I come back to Switzerland, on the other hand I also take care of the damage repair. Even if my vehicle warranty has expired, I hope it’s cool on the part of Seat (can’t be that a gear just exploded). Have you had similar experiences with his Ateca? Is it known at best that certain transmission charges may have problems? I’ve been driving a car for several years, but a transmission damage with a four-year-old car amazes me very much… Lieber Gruss – Michael