I need your help please I have a 2015 manual Audi S3 8V (Standard, no engine mods) Recently it has started hunting when on idle, the rev needle does not move but you can feel the car hunting and it feels like it's going to stall. It only does it on idle, and seems to drive OK still. VCDS shows no codes, I have visually inspected the engine and I can not see anything obvious. What I did notice though was oil on the Turbo breather pipe into the PCV (see pictures) Is this normal? I am guessing I might need a new PCV unit? Any ideas people its driving me crazy and does not sound healthy at all when its doing it. Thanks in advance.