Tourneo 1.5 EcoBlue jerks at acceleration, no matter what speed

Moin people, I still have problems with the EcoBlue 1.5, he can’t keep his speed clean. The tachometer always beats 200-300 turns upwards and falls clean again, on the speed I want to have. I changed the AGR, but it didn’t do anything at all. Even though the old was very dirty, after now 100,000 km. New Tüv he just got without defects. I thank you for an approach, achso and stored errors there are also no forScan. VG, Jango2k