NewYall Pack of 2 Crankcase Vent Valve PCV Pressure Regulating Valve Cover for BMW 545i 2004-2005, 550i 2006-2010, 645Ci 2004-2005, 650i 2006-2010, 745i 2002-2005, 750i 2006-2008, X5 2004-2010

2009 BMW 550i M Sport - 76k miles ***I did NOT have any blue/white smoke*** I did have: -Slightly rough idle -Misfiring when passing on the highway, at higher RPMS -Running rough, just a lot of drivetrain vibration, especially between 2000-3500 RPM. -No codes at all for this in ISTA/Rheingold I originally thought it was suspension related. I’ve replaced my control arms, strut mounts, tie rod ends, new tires, all of it. No substantial change. I’ve been trying to find the culprit of all this for months now. Just ordered new oxygen sensors, hoping that would do the trick when I saw these pcv valves recommended and ordered them on a whim. I’ve heard of these breather valves cracking and causing the telltale white/blue smoke from the exhaust, but I didn’t have any of that. My old ones weren’t even cracked! At all! But I replaced them anyway, and oh my good god. Replacing these y was the best thing I’ve done for this car by a long shot, and I’ve done a heck of a lot. MY CAR IS RUNNING LIKE NEW AGAIN! Like I said, mine weren’t cracked whatsoever, but they were FILTHY. ***If you have an E60/E63/E64/E70 with the 4.8L N62 V8, ORDER THESE NOW. Even if you don’t have any major symptoms, replacing these will make your car run like new again. You will be astounded. I’m so happy I could cry. I know it sounds ridiculous, but any of my Bimmer buds can attest to what it’s like to try to chase down an issue with your car and can never figure it out. This made my year.

The product that arrived was a quality product, and well packaged. I unfortunately ordered the wrong part for my vehicle by mistake, but that one’s on me.

Car started blowing white smoke, replaced with these and it stopped, depending on your 645, you will have to use the old topper since they have a hose connector and the one that comes with this does not, but I used the spring and seal that came with the kit. (My spring was worn out very soft)

Fit nice on my bmw x5

Good quality, fairly easy to install after removing what is on the way. E70 4.8i badly smocking classic grey coming out on stops. Originals where very damaged as I wanted. I didn't wants it to be valves of course. It fix the problem and you should try the same before anything else.

This does not fit on 2008 BMW X5 3.O. Had to broke the original one due to it welded to valve cover, later this does not fit also spring size is different then original. Had to order A- premium one which fit like a glove

Don't get rid of your old covers, although the bladders fit my e64 the covers were different then the original ones. The new ones don't have the nipples where the vacuum hose attaches to. So be careful when removing that you do not crack the clips.

Had some rough idling at start up and error codes about fuel mixture etc. Did this 10min DIY and even so the originals do not have a cut membrane, it did the trick. Might be the spring or a tight fit, but it just saved my 100s of $ at the shop.