http://www.realoem.com/bmw/showparts...37&hg=11&fg=40
Your going to need # 2,12,14,15 to reseal your intake and change out pcv.
If you want to do a good job and clean out the intake then removal is your best bet.
It is possible to change out just the pcv valve but its pretty hard laying on the engine trying to see behind the intake manafold