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That's not a genuine BMW filler cap, so that would be my first port of call!

PCV is built into the valve cover on the N52K. If you've swapped yours recently, it should be working fine.
 

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Super Moderator
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Oil in the intake is normal, that's the PCV doing its job. Couldn't tell you if that's too much!

No vacuum line on there, it's a relief valve.
 
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