Supposed to be an O-Ring at the end of this "intake" tube?

[Gotulukn]

Hey guys, while changing my spark plugs today, I removed this part and noticed there's no rubber where the plastic meets metal on the motor. is there supposed to be a rubber o-ring at the bottom of this intake tube? This would lead to extra unmeasured air, I'd assume..

I'm trying to find a reason for a misfire, my car was fine before I did a valve cover gasket and spark plug change. Figured it was bad plugs, problem resolved but came back.
( https://f80.bimmerpost.com/forums/sh....php?t=2022139 )

The tube in these screenshots from TommyL's video, where the yellow towel is placed.

[Gotulukn]

Originally Posted by Gotulukn

Hey guys, while changing my spark plugs today, I removed this part and noticed there's no rubber where the plastic meets metal on the motor. is there supposed to be a rubber o-ring at the bottom of this intake tube? This would lead to extra unmeasured air, I'd assume..

I'm trying to find a reason for a misfire, my car was fine before I did a valve cover gasket and spark plug change. Figured it was bad plugs, problem resolved but came back.
( https://f80.bimmerpost.com/forums/sh....php?t=2022139 )

The tube in these screenshots from TommyL's video, where the yellow towel is placed.

bump for info!

[ron_s55]

That tube is the turbo inlet pipe
#7 in this diagram
https://www.realoem.com/bmw/enUS/sho...diagId=13_1614

It looks like the o-ring is on the turbo (8th-9th pic):
https://www.ebay.com/itm/33487732415...-53481-19255-0

[Gotulukn]

Originally Posted by ron_s55

That tube is the turbo inlet pipe
#7 in this diagram
https://www.realoem.com/bmw/enUS/sho...diagId=13_1614

It looks like the o-ring is on the turbo (8th-9th pic):
https://www.ebay.com/itm/33487732415...-53481-19255-0

Thanks! Truly appreciated! that diagram on realoem is Now I'm wondering if I saw an O ring on the inlet on the turbo lol, but pulling all that stuff off again is