https://www.1addicts.com/forums/show....php?t=1751588
I have no idea why this part was ever sold.
If you really want to reinstall that part then pull yours out....stick a little screwdriver in the hole and push the little piece of metal out. Reinstall.
Better yet.
Pull your old CDV out. Throw it far far away. And reconnect the existing lines.
Honestly the CDV was and is one of the dumbest thing BMW has ever done. And the people who made this part were just dishonest.
The only possible reason to ever have installed one was if you were worried about the dealer spotting your modification and would deny your claim for your clutch or driveline.
Other than that a total waste of money.