Description Reviews MINI Cooper S N18 Valve Cover. This is a new OEM Valve cover direct from MINI. This cover fails at the PCV valve system that is built into the valve cover and can't be replaced. This is due to extreme heat in the engine bay as well lack of oil changes due to MINI's extended oil service interval. You will hear a sucking sound from the back of the valve cover on really bad leaks that have triggered a check engine light; but normally you see a large amount of oil off the back of the valve cover. By fixing this you should see better MPG because the car is working correctly. This valve cover will fit all N18 motors from 2011-2016 for all Cooper S's (R55, R56, R57) as well as all JCW motors for 2013 -2016 Cooper S's. If your cover doesn't look like this or you have any questions, please give us a call and have the last 7 of your VIN # handy (Example: TJ55937). This cover comes with all needed gaskets, bolts, and seals to complete the install. You will reuse the coil pack cover.