Motor turns out to be unwilling

Hello and first a greeting in the round. Of course, my first post is like most of the time the hope of solving a problem. And my 2.3 t usually starts in the morning when I get him out of the garage to grumble on, he jerks a bit and it smells like gasoline. After 1-2 km he runs normal again, after he showed weaknesses during the acceleration. Sporadic he also shows slight weaknesses during the ride, which takes only seconds, but then is normal again. Oh yes, it i The automatic version. Battery is new! Did someone have the same trouble or can anyone even help me ? Anyway, thank you very much !