Hello dear forum, I’ve been the owner of a 200D from 1982 for about 2 months. I’m a relatively screwdriver and I’ve already found (with the help of this forum) possible sources of error for the behavior of my car. Typically, at cold start is an extreme run of the engine and a jerking with power drop at full load (more than 110 on the highway or uphill drive) also with warm engine. This feels strongly after that the good in these situations too little This is why my first look at the transparent fuel line before and after the small filter in the engine compartment (filters are all new). It is noticeable that there is proper air going through there, which may be pulled from the outside. My question is now: How much air in the line is “ok”? Or can not a single bubble pass through? Unfortunately, I have no comparison, what is still in order, but with me it almost “ruffles” through… Volumewise I would say 50/50 diesel/air, if you sic I have a video of the whole thing, but I don’t know how to get this loaded in. Does any of you know? Thank you in advance, Martin.