Good evening, today I did my first tour (30 km) with my new Mercedes 207D (built in 1979) with great anticipation. He jumped badly, but I didn’t think anything. After a while I had the feeling that he was doing less performance, but I didn’t think anything about it either, because I don’t know the car yet and I couldn’t rule out factors such as slight climbs, headwinds… but then he drove quite normal again. On the way back he drove suddenly, despite full throttle in the first gear, only at the pace, in the second gear hardly any more. I then checked the oil level (with the oil of course was hot and the car was also slanting). Under these circumstances the measuring rod was in the middle (before the start of the journey it was in the upper range). From the oil cover came slightly black smoke (not blue or white). Then I tilted a little oil and started it again, then he w Did they hang me up a 207D with engine damage or could there be other reasons for the oil consumption or the suddenly missing performance? Greetings and thanks Stefan