I had a similar problem with My A4 2.0tfsi, that turned out to be the pcv valve.
Bought a new valve at audi and did the work myself.
Pretty simple job.
Make sure to Clean the pipes while youre in there
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.