https://bimmercat.com/bmw/en/search/...48/ECE/11_6376
https://bimmercat.com/bmw/en/search/...48/ECE/11_6376
It looks like there’s two vent pipes in the PCV system while almost all oil catch cans only intercept/splice one of the paths.
Anyone know what the second smaller vent pipe is for on B48 engines ? (I’ve checked, the N20 only has one vent pipe, seems they made a change on the B-series engines)