Hello, I bought a Mazda 6 2.0 petrol BJ. 2005 2 weeks ago. I bought the car checkbook from a dealer (only 40 000 km…). Is also click everything tip-top…. except the fact that the car is slightly jerking at approx. 2000-2200 revolutions. As a passenger you can’t notice that. But this only happens if I leave the foot quite easily on the gas. Otherwise the driving mode of the car is flawless! But that’s exactly the speed of the car. In the 4th gear, when driving comfortably 50-60 km/h. And then it strikes you quite annoying (as a driver…). Did this complain to the dealer- who meant the car is driving quite normal.In case of a mistake the control light would flash. Did then replay me the software. But did not change anything…. I already thought of AGR or Lambdasonde… but wouldn’t they cause an error message? Am I too sensitive…. is that normal? How are your experiences?