Where is the PCV Hose on a 1999 Audi A4 1.8T?

It resides under the intake manifold. The easiest way to do maintenance on it is to remove the intake. Usually the breather assembly gets cracked. go to www.ecstuning.com and search Word breather http://www.ecstuning.com/stage/edpd/pagebuild_v2.cgi/?imageID=7248&html=viewimage.html#