Hello, I hope someone can help me. I’ve had a problem for a few days, which I can’t really explain to myself. My BMW just drove a sudden bump during the ride. I had the feeling that he lost speed much faster in the 3rd gear, if I don’t give a gas than it was before. As if he was braking independently. And then it comes to the fact that the engine had an unround effect. I wanted to give gas, but the engine abruptly hit the gas. The problem does not always appear, however, today where I went for shopping, there was nothing on the way out, on the way back the same problem. The car does not show an error message or anything else, engine sounds quite normal too.