I installed a K&N air filter today. This is what I found before removing the old filter. The car has always been worked on by the dealer. Is there a hose missing???

 

Uh yeah there should be.

 

Notice it here.

 

Thanks - I'll have to point that out next time I take Bergii in.

 

Before you take it in, have another look at that nipple - does it have a hole in it, or is it plugged? I ask because my car looks similar to yours, and on my 2011 the nipple does not have a hole in it. I think this is one of the differences on the N18 engine that came in 2011+ S models.

 

Post a pic of your engine bay. I could be wrong.

 

The one clear shot I've got that shows the nipple I mentioned appears in this post on another thread, and for some reason I can't attach it again here:

https://www.northamericanmotoring.co...280-post8.html

 

Well ask the service manager. That should solve the mystery. Or maybe someone else on here will know.

 

Nipples.... Sweet! ATC loves nipples.

 

My 2012 MCS has a hose there as shown in post #3. Difference between what the image shows and our engines ought to be only the cover over the plugs etc on the 11+ engines.
E

 

Also, in post 7, he seems to have a catch can installed - that might be his reason for deleting the hose...
E

 

OK - the nipple has no hole in it.
Strange that they would do that.

 

Summons - The oil catch can installation is when I discovered the nipple with no hole.

I'm guessing that this is a remnant of the changed PCV plumbing on 2011 models.

 

"I'm guessing that this is a remnant of the changed PCV plumbing on 2011 models."

Actually it's a part of what's to come... all 2012/2013 US models have a hose there which routes thru the clip attached to the air filter box. The hose attaches to a fitting on the block below the intake manifold.

 

I still doubt it is to be a open whole. They would have plugged it.