Moin together, after I repaired the axle cuffs after a week of delivery and took part in the crossbar and the wheel bearing, as usual I wanted to go on a small test drive. When I started the elk a lot of me that he runs like an Sach screw and sometimes like a lawn mower or a 2 cylinder moped sounds to it numerous misfires and in the stand gas far under 1000 revolutions. I only thought that comes from the cold but with me it has never been under 5 degrees. I had also pulled the air mass meter out of the rubber device in the week of service and brought out the air filter box to see if this “warm air, cold air” flap is broken and have found that a loose hose that is already 2 years in the engine room hangs the hose to control the flap (I don’t know if that helps further). As soon as the car starts warm and runs it is quite normal. Maybe one of these problems and can help me further? The engine is, by the way, a b5252fs.