Hi nice mow to start a forum.Have a strange at startup sounds like a duck call first 2 min and then it goes a way.
That shuld be it. Same on my car.
Thanks for the fast respons I have tried other forum in Denmark whit out any answers.
Is this the part I look for
The car is a e60 cli 530 xd from 2008 2
https://www.ebay.co.uk/itm/NEW-GENUINE-BMW-E90-E91-E60-E61-X3-E65-E70-E71-CRANKCASE-BREATHER-VALVE-7794597/273326222961
Pcv is blown