HY-SPEED 917-064 PCV Diaphragm Repair Kit Compatible with 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 A3 A4 A5 A6 A7 Beetle CC Eos Golf GTI Jetta Passat Rabbit Tiguan

Car was throwing an error code that read 3-4 possibilities. After researching, the likeliest cause was the PCV diaphragm. Local auto parts stores wanted $30-$40 just for the diaphragm portion. Ordered this one, installed it in less than five minutes, cleared the old code and not a single issue since. Would definitely buy again if needed.

Fit fine on the valve cover assy of the 2011 Jetta SE. Was pretty hard getting the old one off. Had to use small diagonal cutters to snip off the latching tab ears of the old one. My Jetta had CEL (check engine light) with diagnostic trouble code (DTC) P0106 (Map sensor implausible reading). When this PCV diaphragm fails, it allows oil into the intake manifold and fouls the MAP sensor. I first removed and cleaned the MAP sensor with the proper cleaner for this and let dry. The old diaphragm had no visible tears but was really soft and flimsy feeling. Cleared the DTC and have driven car about 100 miles so far and the CEL has remained off.

This HY-SPEED PCV diaphragm kit was a lifesaver for my 2013 A4 Quattro. I was dealing with rough idle, oil seepage, and inconsistent boost—classic signs of a failed PCV. Swapping in this kit took under 30 minutes with basic tools, and the results were immediate: smooth idle, no more vacuum leaks, and better throttle response. The diaphragm material feels durable, and the seal seated perfectly without needing RTV or extra fiddling. It’s compatible across multiple Audi platforms (A3, A5, A6, A7, allroad), which makes it a smart stock item for any Euro DIYer or shop. If you're chasing down boost loss or oil vapor issues, this kit is a fast, affordable fix that actually works. No CELs, no drama—just restored performance.

This is exactly like the OEM one. Takes 2 minutes to swap and works perfect.

not bad, it does help if you have the check engine light because of the intake

Works perfectly! Haven’t had any more issues, like codes or oil consumption, since installing it last November (2024). Worth trying before spending a couple hundred on a valve cover from the dealership that has the part integrated. Takes about 20 minutes to install if you’re familiar with working on cars, maybe an hour if you need to watch a video first.

Definitely thicker diaphragm material than the one I pulled off. a lot thicker. Not sure if that's good or bad. The old diaphragm still worked but was very dirty and seemed flimsy. I used the old spring the one that came with this one was shorter with less tension. maybe it was designed that way because the diaphragm has more push back to it. I don't know, it's working, though. No complaints. It has only been a few days, if it fails, I'll definitely update.

Good