Good evening, I finally bought a Volvo V70 2.5T with 193 hp. The bock has 246000 km.. If I stand on N (is an automatic) then the speed variation is very strong.. I put in a gear (R or D) then the speed variation is still present but not too strong anymore.. Even if I drive and then brake you notice the speed variation.. What could it be??? Urgently your help the car must be to tuv.. MFG Marcel