Ever seen a PCV valve leaking coolant into the crankcase? Let me introduce you to the fourth circle of hell, 3.0TFSI edition. : r/Justrolledintotheshop
PCV Crankcase Vent Valve Hose for Audi A3 8P1 8PA A4 B7 A6 C6 TT 2003-2012 | eBay
PCV Valve Replacement for VW/ Audi 2.0T TSI DIY (How to replace) - YouTube
Audi, VW Pressure Control Valve (2.0T TSI, PCV, Early, OEM) 06H103495AH by OE Supplier | Europa Parts