Picked up my first Mercedes Diesel, an 82 300CD. I've restored saab two strokes and odd motorcycles, had and still have a modern MB, first foray into vintage MB. I've read the heck outta the forums. Had this thing 3 days and so far: Tested vacuum pump, 20in at idle. Replaced the 3 and 4 ways in the vac system, metering and check valves. Central locking has a leak somewhere in cabin so left that capped off for now. (car came that way). Disconnected EGR vac and ordered the blanking kit from a forum member. Removed the transmission vacuum levers from the valve cover and looped the two hard lines that were going to that distribution block. Installed Hella headlights. Replaced air cleaner. Have a priming pump an fuel filters on order Still a bit of a whisk whisk noise when accelerating (sounds like vacuum to me). Takes about 4 seconds to shut down after turning off key. Shifting is a bit hard but acceptable. Next items to check?