Hey Guys! I recently took out my intake manifold and my valve covers due to leaking oil from gaskets, so i decided to replace the valve cover gasket, intake manifold gasket, and the cam chain tensioner gasket. I also painted the covers after 3 hours of non stop cleaning. anyways, after reassembling my engine parts, i have somehow lost a hose that connects the coolant reservoir. The hose connects to the nipple almost directly under the coolant cap. If anyone can give me a diagram of the reservoir, or a picture or video of where the hoses go would be great. Also a picture of the hoses coming off the intake manifold would greatly help too if possible. thanks!

 

This should point you in the right direction

Audi B5 A4 Quattro 1.8T Engine Cooling Hoses - ECS Tuning

 

If you're talking about the nipple in the red circle here, you didn't lose anything. That's where the overflow drips out on to your exhaust manifold.

 

Wait that's the nipple! So no hoses belongs to it?

 

That is correct.

 

Here is your intake manifold with vacuum hoses, hope it helps you out. I picked a 2000 2.8 engine.