Hello, my friend her x117 is having serious problems, we don’t know any more and Mercedes doesn’t. We don’t know whether it’s the engine or the 7Gang automatic, Fzg is from 2017 and has run 75,000km. We have the following problem. 1. Stuttering/rubbing, no real gas pick-up when accelerating, stays stuck. (feeling of overgreasing) 2. Only at temperatures below 15 degrees. 3. If only once a day, when it was there, everything runs perfectly and does not come back, just like After cooling down a day later. 4. Once there, you can’t provoke it again, no matter what you do. 5. It feels like when you speed up ASR intervenes and holds the throttle valve. 6. It lasts about 2-3 sec. 7. Mercedes has already replaced the throttle valve and the LLK, now we are out of the guarantee. I have read something similar here before, because it was about water in the LLK, that would explain at below 15 degrees, only once a day, after cooling at the fo It’s back for once. Swallow of water approved and the thing is done, then it runs perfect again.. But I can’t really imagine that, then everyone would have to have it, then I thought of the LMM, but then the error would occur reproducibly in a row. The error memory is empty, in the back of my mind I also have the 7 gear automatic, could also be that when accelerating it doesn’t switch down properly and it comes to stuttering/flattering because it doesn’t we really don’t know what to do, live with it and hope it doesn’t get any worse, repel a car and hope another 220/250 isn’t affected or exchange parts senselessly. It’s also dangerous, you want to speed it up and you can’t do it for 2-3 sec, when you overtake or start at a junction that can be dangerous if you don’t get away. I hope you can help. Mfg