Volvo XC70 P3 D5 jerks at 50 km/h 1500 rpm without load

Hello group, my XC70 P3 D5 215PS AWD Geartronic makes a few faxes at the moment. My XC70 is jerking in the partial load range when accelerating up to approx. 2500 revolutions and if you keep the speed it feels as if it is shaking at around 50 km/h and 1500 revolutions mostly in the 3rd gear, when it then drives between 55 and 60 and it switches into the 4 gear and the speed drops then the jerking is gone. Even with normal acceleration from 40 – 60 you have noticed a jerking and if one has given more gas, so that the speed is constantly higher then nothing jerks and even if one drives manually nothing jerks, so you don’t notice anything. In the summer before about 20tkm also the message came from the transmission, because he has cut the gears so in such a way when switching down. Previous owner means transmission flushing was made, but I don’t believe, or is there the mechatronics in the bad? Error memory transmission: P0895 switching time to short four wheel: P163568 outside the tolerance range Pest razioni cambio ridotte = Reduced transmission power What was changed: all 5 injectors were replaced, transmission was flushed with 20l, throttle flap and AGR was cleaned, but not the cooler from the AGR. Intake tract was completely disassembled and cleaned. Did not make any difference. I recently gave up new winter tires and drove with a trailer for 1 week because I moved and then the jerking was gone for 1 week. Thanks in advance!