The PCV-valve unit of the BMW N54 engine is injection molded and connects as one piece with the whole valve cover.
Andrew Markel discusses the oil separator, and why you may not find this part right away when you look for it. Sponsored by Auto Value and Bumper to Bumper.
All current MINI engines incorporate a pressure–controlled crankcase ventilation system that uses various crankcase ventilation valves, depending on the engine type. Although the valves all look different, they function similarly using a spring and diaphragm assembly to control the crankcase pressure.
Due to the variables in engine design and operating conditions, internal engine oil consumption complaints are often the most difficult to solve. In some cases, oil consumption might be more severe under low-speed operation, in other cases, high-speed operation and, in some cases, intermittent. But, in any case, excessive oil consumption can drastically reduce oxygen