I'm doing some "clean up" on my new to me 2011 S Clubman and fixing things that the previous owner neglected. I noticed that the air box is not mounted real well, just kind of sitting there.

On the passenger side there is a screw that goes into a bushing on the plastic intake manifold with a rubber bushing between the air box and the manifold (3/4/5 in the attachment). On the driver side there is a hole molded in the manifold and a "stud" that is molded into the bottom of the air box that sits in that hold, but nothing that holds it there. The stud is not a tight fit into the manifold and it looks like there should be some kind of grommet or something else to hold that side of the air box in place.

the parts diagram from the dealer is no help. there is nothing on that side shown . Anyone who's had this apart on their R55/N18 have an idea of what I need here? (or a photo would be even better)

 

I know what you’re talking about, my car need one or two of those also.

The bushing is found on the intake manifold diagram, item #4:
https://www.realoem.com/bmw/enUS/sho...diagId=11_4575

 

My clubby is missing 2 of those grommets as well, I haven’t had an issue with them missing. I’m pretty sure the PO had an AEM intake on mine and I’m sure the grommets probably went with it. Thanks for the link above, 3 bucks ain’t bad for 2 of them, and will be added to my to do list.

 

They come out when you lift the box sometimes https://www.ecstuning.com/Search/Sit...h/11617593928/



I put a little oil and grease on the insert points. That way the box sides in.