Hey guys, so I was working on replacing another part that I am pretty sure is the source of a vacuum leak and in the process a tiny brittel part broke off. There isn't a part number on it so I don't know what it is. Here are pictures showing you where it is. Thanks!

 

That is a check valve. Im pretty sure the new an improved ones are green.

 

So is this part an acceptable replacement? Cause I can't find anything that is exactly like the one I need based on what you said.
AUDI A4 A6 QUATTRO VW PASSAT VACUUM CHECK VALVE 1.8 3.2 | eBay

 

Audi B5 A4 Quattro V6 30v > Search > Check Valve > ES#12077 Inline Check Valve - 078905291B

 

But that doesn't have a hose coming out of it like the current one does. The tiny hose is what is broken and needs to be replaced. I circled it in the last picture.

 

i dont know what you mean by tiny hose. whatever is wrong, just replace it. if you need checkvalves, send me a coupe dollars and ill send you a few of them. i no longer run any check valves. if its the hose, go to the auto parts store and get some new stuff

 

I can't buy the part without knowing what it is. If it is a check valve then I will buy one. The little hose I'm talking about is circled in the last picture Its leaking air when the car is running and my boost doesn't hold at all. If you have one that can replace that then I would be more than happy to buy it from you, I just need the valve.

 

Bump? Sorry, I just really want to get this figured out.

 

all thats circled in the last photo is just what looks like a pin hole in the nipple of the check valve. and what do you mean your car wont hold boost at all? you may have bigger issues. although those check valves are necessary, the car wouldnt run that bad without them

 

That "ping hole" had a barb coming out of it that had a hose connected to it. No I don't have bigger problem because this only happened when that got broken. It can't hold boost as in the boost builds up to like 8psi and then just goes down instead of it holding it up to 10 until I let off.