I did some research but did not find anything helpful.
has anyone replaced them?
where are they? and how hard is the job?
any feedback is appreciated

 

well...the ones on the Cayenne (atleast my Turbo) are valves, as in one way check rubber valves....I wouldn't think they fail too much. There are some options for some crank case catch cans, etc. Why? Do you think you are having issues?

The valves are located on the front of the engine, off the intake and driver side valve cover.

 

Thanks Scot for the reply.
I get "P0016 crankshaft position-camshaft position" problem from time to time. car drives normal. someone suggests it might be a faulty PCV valve or a leaky line somewhere.
I also got "P1182 positive crankcase ventilation heater output stage no signal/communication" error during the last scan. I know that might related to the #50 fuse however I just want to replace the valves if possible.
any thoughts? Thanks

 

Interesting, I'll check my cayenne service manual (on CD) for non-turbo and see what the routing looks. Definitely could be a leaky line as they are plastic and get brittle and can crack over time. The PVC check valves seem pretty durable imo though, but who knows. I'll look for them. Shoot me your email in PM and i'll send you a diagram. Good luck.

 

Thanks a lot Scot
I just pm'ed my email over.

 

can someone post a diagram of the PCV so that i know what im looking for. Thank you

 

it is located under the TURBO plastic cover
it takes 5 mins to replace. mine was actually broken.
G94810721950 is the part number from autoatlanta
hope that helps