cpd

<center><img src="http://pictureposter.audiworld.com/40771/photo.jpg.jpg"></center><p>I'm on the road right now, noticed that this valve was almost completly unscrewed. this is a *** under the plastic panel/cowling near firewall, on the passenger side (left if facing the engine)only reason I saw it was the plastic panel had poped up out of place, felt the *** and if came off in my hand. Does anyone know what this is and if is should be loose or tightly screwed on. Looks like a bleed/release of some type maybe A/C or heat. should I screw it on tight or leave it loose, no other warning sign of something being wrong or broken???

needforsleep

Can you take a zoomed out picture of this?

KenK in TX

It's just a valve cap, like the one on your tires - screw it back on.

fourwheelslide

Agree with you...looks like A/C bleeder cap...just screw it back on and be on your way.

cpd

<center><img src="http://pictureposter.audiworld.com/40771/valve1.jpg"></center><p>

cpd

<center><img src="http://pictureposter.audiworld.com/40771/valve2.jpg"></center><p>