3.0 TFSI Airbox Cover and Intake Help/Questions
 

I posted this over in the q7 specific discussion, but its been crickets over there. Simple answer would be to buy a new airbox cover, but not sure I want to do that if all I need to do is seal this off.

This is what I posted over in the q7 discussion.
I'm working my way through some maintenance on a new to us '12 Q7 with the 3.0 TFSI. While I was cleaning out the airbox when replacing the air filter I noticed something awry/broken with the Airbox Cover. It seems there is this protrusion that appears as though it would have a line connect to it that is open to unfiltered air, yet its on the clean side of the air box. So basically its letting a small amount of unfiltered air in, which isn't great. It does appear as though something "broke" off this end, as its not a clean flat surface at the tip. I've attached some pictures below. Also if anyone knows what this random clip on the air intake tube is, i'd love to know. I looked around for lines that might go to both the airbox as well as the clip on the intake tube, and didn't see anything.https://cimg2.ibsrv.net/gimg/www.aud...557e9b265e.jpg
https://cimg1.ibsrv.net/gimg/www.aud...9d75069253.jpg
https://cimg3.ibsrv.net/gimg/www.aud...bcd1f544fd.jpg

No one has a clue here?

I think the hook on the intake is what holds the fuel line, which is now below your intake? I have no idea what that vacuum line does, but it's not the crank vent, so I don't think I'd worry about it too much now. I think that's what opens the round intake opener on the bottom of the intake box.

Take a look at some stock image of the s4 engine bay.