Hi Vlt can help me one of you love , unfortunately I found in nett still nix . I got myself a smartie 2010 61ps 90t km drives actually quite decent and squirty . But unfortunately it always comes when starting to idle problems or strong fluctuations . https://youtu.be/Mg6S0rA6g5A . I could find error with a simple readout device : fuel too fat idle . Have changed the lamda before kat after tip . That was also quite loose and since that is the error away . However, there is still a mentioned problem but still see video . This happens also from time to time and other traffic light he then starts again after a short time as also when starting usually in warm condition . Had Vlt something someone times ? I think Vlt of petrol pressure regulator that I once had in the a6 thank you for your tips .