Moin people, I have a Mini Cooper Countryman (136hp, switch) for a short time. Now I noticed something that was not present during the test drive. If I give the car a high load in the high gear with little revolutions, then the whole car is jerking as if the engine had “shuck up”. Since then I no longer drive with little revolutions as possible, but hold the revolutions at approx. 2300 – 2500 rpm. However, this “shuck up” also comes when I am in sport mode with high U My guess is that the car dealership has fuelled E10 and that may be the problem. Now I’ve filled Ultimate 102 (if it doesn’t work for the acceleration, but I felt better with it) to see if it’s still there. And in fact it’s “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” and “sportl” are not very strong anymore. I’m still partly there. Have you ever heard of this?