How The VW 2.0t TSI PCV Valve Fails

Thank you so much!!!!! I went through several videos that claimed to be diagnostic, but really weren't. You just clearly answered everything I was trying to figure out... Plus the added bonus of connecting my sudden oil leak. Wish I'd known that sooner. Time to get to checking my PCV!

7 years after this video came out and it came in clutch. Easy diagnosis with this info and so glad it’s not my intake manifold gasket.

Wow 8 years later and this is very very useful thanks brother

+HumbleMechanic .. I just replaced it this morning. Car started doing a loud screeching noise two days ago. After checking your videos and diagnosing the problem, I ordered the part from Deutsche and replaced it myself. Very easy DYI and fix. Thank you for all the help you provide to us VW owners. (we really need it, lmao).

Thank you so much for the video. It saved me from going after an O2 sensor and saved my wife a lot of money. The diaphram had a torn gasket. Luckily a local part store had the Dorman part for $30. Quick and easy fix along with cheap. Thanks a ton!!

Im here again my friend. I been working on my 2007 2.0 T FSI And everytime its a new code.since i did the valve replacment crazy but its truth I dont know the reasons but im tired to spend a tons of time on this car . The goods its you are there to show me posibles causes and how to fix the problem. Tks my friend for this videos Keep doing it .

You really saved me towing money and expensive no use mechanics ,who have been claiming that the sound comes from a faulty pulley or a worn fan-belt. Thanks so much...

Great video Humble as always. A week or so ago my 2013 gti started idle revving. It would go up to over 2k rpm at stops a couple times before returning to normal. (750 rpm or so) Seeing this video and others forum posts on this problem made me think the pvc was the likely problem. Turns out my local auto store carries just the diaphragm hockey puck sized part of the pvc. So with a little work i snapped out the old and just like you mention, the diaphragm was torn. Put in the replacement and its back to normal. thanks again for your vids.

Great guidance, thanks :-) My SEAT had a hunting idle, 'too lean' codes, and a wheezy air sound after engine off. The PCV looked a bit different, but I was able to carefully prise it apart, and voila a ripped diaphragm!

Great Video exactly the issues I was having on my Audi B8 2.0 Turbo. Replaced and runs like new. I had been using oil as you mentioned as well. Thank you Kindly !

Huge, huge help. My 2010 CC had been giving me the Cylinder 3 Misfire code several months ago. I assumed it was the notorious carbon buildup and not being ready to drop the cash for repair decided to experiment with a can of Seafoam. Problem solved, no codes for 3 months! A week ago my car died while backing out of the drive one morning. No code; effortless restart. ??? A few days ago I was hit with the P2187 code and a very erratic idle. Your mention of the whistling noise struck a note with me; I'd heard that sound off and on for about a month, always at idle after highway driving. It seems you have perfectly described my issue. Parts are ordered. Thanks for saving me a lot of money at the shop.

You are by far my favorite mechanic on YouTube bro

I have been troubleshooting multiple error codes for at least a year to the point where I either wanted to catch our Tiguan on fire or put a Free sign on it. The PCB valve fixed it all! My wife treats me like a hero. I could just give you a huge hug man. Thank you for such great instructional videos.

Thank you Humble Mechanic! Helped today so much in fixing my PCV valve and thanks for including how to test it.

Bro you're the MAN! Cant thank you enough! My 2011 has been in and out of 2 different shops 5 times and a total of 680$ later only to have to diagnose it myself...and it was the pcv valve! Seriously thank you again I can finally SHUT THIS WHISTLE OFF! My car literally sounds like a JETSONS car

This guy is awesome thanks so much. I’ve been searching for hours and this is exactly what my problem was. It fixed it right away

This video was great as its given me the confidence to tackle the PCV replacememnt myself. Perth Australia

Thanks for posting, it helped me. My 2009 Passat engine (1.8 TSI BZB) was shaking badly in the morning after a very cold night outside and had misfire error codes. In the end, the PVC was ok, but the crankshaft seal to the gearbox was leaking. I think the PVC froze and built up pressure. I replaced the PCV and the sealing ring as well as the clutch (reinforced version) at the same time (yes, the gearbox had to come out of course, grrr). Now the engine is running better than before. Best regards from southern Germany

WOW!! I need to thank you so much for this video, it saved my ass.  I had NO clue why my 09 Jetta Wolfsburg was screaming at me (squealing so loud), I assumed a pulley or something belt related, never heard such a consistent squealing before.  We than got a bunch of misfire error codes and P0507 which lead us to you.  The car has been misfiring for over a year and no dealership or shop has been able to figure out why, I kept following the symptoms and replacing coil packs.  Finally a shop told me "MAYBE" it's a dirty fuel injector which is a bigger fix on the wolfsburg because you have to take apart the engine more than most other cars.  Instead of going down that route we started running fuel injector cleaner at every fill up for months, it seemed to help but the car still had misfires while starting up.  We were driving around and the car seemed to be driving fine than out of thin air started the loudest squeal ever, of course we were downtown and everyone was looking at us like we were idiots.  Long story short the only way I was sure of the problem was by watching your video and I found the diaphragm under the pcv valve cap/cover was torn just like you said they do.  The PCV valve was also very built up with hydrocarbons and oil but I cleaned it out nicely.  Now I'm looking for a replacement for the cap and diaphragm.   I followed forums and people are recommending the "Dorman 917-064 PCV Diaphragm Repair Kit for Volkswagen" which you can get on amazon for less than $20.  Hopefully that will come soon, car is out of service until than.  

Thanks . Clear explanation , i believe mine has falled . 2015 jetta 1.8t 42,000 miles . Small valve cover leak.