2.0 16V runs very rough (tractor-like) and doesn’t drive properly

Hello municipality, I’m new here in the forum and I’m ready for your help now. I drive a Opel Omega 2.0 16V limousine Built 97 kms: 114,000 km(round). Pictures can be found in my profile! So the suffering started with the descents in the stand, sometimes he gave in the idle by himself. Generally the car ran around but still restless. Especially bad is it when it just runs out of me at corner entry (coupling to switch down) and thus steering When I got into my omi yesterday morning, after I had painstakingly scratched my windows, he denied me the first attempt at the start. At the 2 times he started then, but shook me powerfully. He did not take the gas properly and blew me a proper petrol smell into the interior. I then removed the battery 24 h and charged, but after reinstallation the same symptoms as before… I hope i ch could describe my request as a newcomer in detail enough and now hope for an exchange of ideas with like-minded people. Greetings from the Börde Kenny