Thanks a lot for your help. Just want to share with you experience. After having checked the pipes by mechanic with negative result of finding the cause of problem, he suggested to runt the car with manual gear set max 2 on the road. So I went off from service, heading to nearist petrol station on manual gear set 2 speed level and than I put automat again. Still was week. BUT after filling tank with fuel, stopping the engine at the petrol station IT WAS OK every since. (same night I drew 350km still ok). The power is back
the turbo works (let's see for how long
have a lovely day!