anyone know what this is theres a bunch of white stuff building up on it and my car sounds like its gargling for air by the intake and this thing is right above it any idea heres a pic its on a 03 1.8t fwd

 

it appears to be a check valve. Those tend to corride away after time and need to be replaced in order not to throw a code due to vac leak. This will also cause the car to studder. U can pick this part up at a audi or vw dealership or get it online.

 

http://www.usplastic.com/catalog/var...riant_id=64048

thats what i replaced mine with and they work well

 

did u order that online or did u get those at a certian store.

 

Ordered online. They will work to replace all but one check valve;The one that has three nips

 

Sorry to be dense, but to clarify, I can just get one of these things to replace this busted vacuum check valve the blue thing, its at the rear of the intake manifold in the rear circled area) instead of ordering one for $42 from the dealer?

Its really just a one way air valve, right?