Hello dear colleagues, you have helped me so much with the temperature problems and gave me advice on “with 193,000 KM on vacation”. Thank you very much for this. Now I still have a problem that simply makes me crazy and with which I now finally do not know any more. My Fiesta, which is already sufficiently well known to you, is the favorite car in the world in city traffic. Also if I drive normally over the highway or over the country road. But if I only 5 minutes It is only when the car is idle. It is only a short flickering and in the course of time it gets worse. (Test: Autobahnfahrt und Kupplung entstehen). In the city traffic it calms down relatively quickly: lamp is off. Very important: when I give a little gas, the lamp also goes off. In short: Nic drives 120, idle speed: lamp on. Over idle speed: lamp off. At first I thought that it was on the vacuum pump for the Brem oil change was made in September: original oil from Ford. Enough would have to be in it: in the middle of the top and longest flattening on the track bar. My friendly Ford dealer gave me to understand that it could be the oil pump – which, however, I do not like. Hiesse it to turn my small thick trekker off soon next to other cars. Do you have no idea? Can it be the oil pressure switch? What u And when does it actually show? I still have a can of oil sludge flushing here. However, there are little anzecihens for oil sludge: vebtile drive and oil lids look good. I am grateful for every tip. At the moment I am a little irritated: If I still meant that there is enough oil on it, it seems to be too much oil. Anyway, according to the operating manual. Please don’t consider me naive. But I always give the Fiesta to the workshop for TÜV etc. and actually you should d They can’t just be so stupid and tip too much of the expensive oil into me. (Okay, I paid for it too). So what do you think?