Quick question. Rubber gasket under oil cap

[Kram71]

I did my new plugs today. BMW made it pretty easy. Under and hour while taking pictures of each step. I read the dealer gets over $300 for this job.

When removing my engine cover I noticed a loose rubber gasket that goes under the oil cap. I could not tell if it should be positioned on top of the engine cover and under the oil cap or under the engine cover as well.

Thanks in advance.

[jrkoupe]

iirc......under oil cap...on top of engine cover

[Kram71]

iirc......under oil cap...on top of engine cover

Thank you. That is how I have it but it seemed a little big for that area so I was not sure.

[jrkoupe]

mine seems to have grown as well..lol

I think over time from the cap's pressure they flare out...mines way too big after 19 yrs

[Kram71]

mine seems to have grown as well..lol

I think over time from the cap's pressure they flare out...mines way too big after 19 yrs

Thanks for letting me know. Good to know its not only mine. The car loves the new sparkplugs!

[jrkoupe]

I bet my plugs have 140k on them...these cars are wonderful lil gems

[BimmerBreaker]

If its the rubber gasket I'm thinking of, it sits under the beauty cover. It's designed to gasket the beauty cover against the oil filler neck, so if you spill oil on the neck when topping up the engine, it will flow over the beauty cover, not under it where it could reach the spark plugs or coils if applicable.

[Kram71]

If its the rubber gasket I'm thinking of, it sits under the beauty cover. It's designed to gasket the beauty cover against the oil filler neck, so if you spill oil on the neck when topping up the engine, it will flow over the beauty cover, not under it where it could reach the spark plugs or coils if applicable.

Thanks BB. I did not totally understand your explanation but based on what I underlined, I will try it under the cover since I never noticed it before taking the cover off yesterday.

[Kram71]

If its the rubber gasket I'm thinking of, it sits under the beauty cover. It's designed to gasket the beauty cover against the oil filler neck, so if you spill oil on the neck when topping up the engine, it will flow over the beauty cover, not under it where it could reach the spark plugs or coils if applicable.

You were right. It looks much better under the engine cover.

I noticed a clip on one of those round engine cover caps/plugs was broken. That will not make the engine explode will it? (joke but will it? lol)

[Kram71]

Ordered a new cap. $3.01 including shipping. I can live with that.