[Batts335d]

when my car went to bmw for gearbox update they gave its a once over and on the notes it said

oil leak under inlet manifold ( thats it )

so i pulled the plastics off the top to get a look and still no closer all i can see is the small maybe vac hoses between what im guessing is the oil filter and the block have oil on them

not loads of wet oil to say its spraying out but that oil mixed it dirt ti say oils getting there and dirt sticking to me

whats leaking any help as i cant see a thing and dont wanna take inlet manifold off to see as havent got a clue

[Brian mc21]

Seen a post on recently regarding an oil leak from the swirl flaps on the inlet manifold. The guy fixed them himself so if this is the case it may put your mind at rest a little. Some one with more knowledge than me will be along to give you a better explanation I'm sure.
Ps check the technical section for the post removing manifold. Oil leak.

[ade146]

swirl vanes most likely, very common. Streaks running down the block?

[Batts335d]

Is there a how to fix anywhere ?

[mistryn]

How old and milege is your car?
Mine had a leaky swirl flap no2 where the orange gasket had perished and leaking oil down the side and back of the block - it is difficult to see but once you shine light into that area you will be able to see

Mine was replaced under warranty but the orange gaskets are only couple quid each and will need 6

[Batts335d]

57 plate
65k

Is this a good time to blank off the flaps like some people have or not worth doing ? I don't know much about denizles yet I need to get up to speed on the 335d

[oldbilly]

what model do you have? the later type cartridge flaps seemed to have solved the failure problem.
it does sound like the swirl flap seals are leaking, as said get a light in the engine bay to see where its coming from, if it is the swirl flap seals its a manifold off job to remove them for inspection, once off you have 2 choices blank them off or if in good condition put them back with a good sealant around the seals of the swirl flap cartridges, I've just done mine recently.

[Batts335d]

Is that inlet easy to get off ?

[Batts335d]

Anyone with pictures or link to fix this please