Is the Crankcase Vent Valve the same thing as the Oil seperator? Took it to the shop today and I told them I needed a new oil seperator and they said it was the same thing. I've never heard that, and I seriously doubt that it is the same thing. Does anybody know for sure? It was an Indie mechanic shop that works on BMWs but I need to know if its the same part, because if it isn't...I'm going to go off on them..The last thing I need is some idiot telling me they know more about what the name of a part is than me. Furthermore, if it isn't the same thing..I doubt I'll take my car there ever again...