BMW M54 M52TU CCV PCV DELETE REMOVAL BYPASS for crank case ventilation system dual vanos e53 e46 e39 

Nathan, Thanks for the video support and sharing the knowledge so that normal owners can understand BMW design faults. These cars are very expensive both to purchase and fix. There are trolls in every website plz ignore the ignorant and continue to help with your well though out fixes.

Ive done alot of research and work on my Bmr and you are the first to get this detailed and showed me what needs to really needs to be done to pinpoint the vac system. Thanks a million! New subscriber here!

I am a retired automobile mechanical engineer. I worked in engine for 18 years. What seems to be missing here is that you have ignored the function of the common PCV valve found on every modern vehicle. The normal PCV valve is a very simple inexpensive valve on most cars, and does not include a diaphragm that can rupture, like on this BMW. What it does is restrict air flow from the crankcase at idle, but allow enough to clear the blowby gases without reducing the vacuum level too much. During acceleration, when the the intake vacuum is low, it opens up more to allow the higher blowby gases to be fed into the intake manifold. If there is a backfire on decel, the PCV valve closes. What might be a smarter modification to this BMW vehicle would be your same fix, but include an inexpensive normal PCV valve in series with your vacuum line to the intake manifold.

Very nice buddy, your videos gave me confidence to do this job. I'll give it a try once my CCV fails again. Thanks and keep up the good work, cheers from Brazil.

Bro absolutely the best explanation,thanks for your time and help

Great video ! Thank you so much, I was able to do it by just following your steps. :)

just done yesterday ...the car give me new feeling again...tq nathan

Thanks bud, great video!

After replacign 3 CCV's I find this! Brilliant! Now to figger out how to verticalize the new valve!

Exactly what I was looking for. Mines leaking a little oil probably the hoses are old. I see what you’re doing I’m going to do it.

great vid nate

I fix my problem with car !!! I sold it , no more problems for me , maybe is this maybe is that, I just get tired from this "problems", and for you all guys I wish best luck!

brill vid nath ,not got to this stage yet to drleet my ccv on my bma but will do at some point when needed ,i like your way best ,thanks tony ,uk,

You're doing a great job with all your videos Thanks!!

Hi Nathan, thanks for taking the time to post these videos. They are most helpful. I did the ccv delete on my 04 e46. M54. However, my crankcase is building pressure at idle faster than the port on the back of the manifold can draw. Any ideas on how to solve this? Is pushing oil or of my valve cover gasket.

Hi Nathan, first off thanks for doing all the videos. I've done alot of repairs to my BMW with your instructions and I feel good about doing them with the help of you teaching. One question I can figure out, at 415 you were going to go in with a razor knife and disconnect the vacuum housing (with the hex bolts that you had to pry off). Yours broke free before you cut it but I cant find out in any of the videos what to do with that hose that broke (I capped off the vacuum bar system as you said) but does that hose that originally connected to this piece need capped or did you just leave it upcapped? I cant seem to find this answer is all of the videos that you made. You always just cut it and seal the vacuum bar but never mention that hose that you cut again. Do I cap that or just let it dangle?

Great video. Could you just cap the six holes if you were not worried about stock look?

Great video, but you mentioned right at the end about the small vacuum line that goes up to the fuel rail but you didn't mention what you do with that when doing the ccv delete. I would appreciate any comments regarding this.

thank you!!!!!

Is the best solution a catch can? Then back into the inlet? I heard people venting it to the atmosphere but causing engine issues

This is awesome, too bad i didnt see this vid before buying the whole new ccv vavle and hoses. I would have much rather eliminated.

So for the bmw' s that do have the vacuum line going to the fuel rail, do you cap that line at the fuel rail as well?

when you bypass this doe it pull up any check engine lights are codes. also thanks for great vids like this its a good thing that people like you pick up a camera and show the rest of us the tricks you pick up thanks

Evan it really isnt that bad, i spent a couple hours doing the video but in real time i can do it in about 35 minutes, if im not messing with the camera every few minutes.

Thanks your video Nathans. I have some questions My E39 is M54 525i engine Are there any disadvantage to delete original ccv systems without oil can? For example: oil consumption or air leak problem Will OBD detect error code after delete ccv systems?

Hello Nathan, Here is a question from the far Netherlands. I just installed an oil catch can like in this video. First test drive I drove quietly and the engine runs nicely. Second test drive faster and now a lot of oil has been sprayed from the hose with air filter of the dipstick. What could be the cause?

I'm glad yours is 2001 530i, because I'm going to be doing my 2001 530i, well here goes.... What part brand CCV do you recommend ?

Do you have a video for the osv delete on the m62? When I do my chain guides in the future I'm going to delete it

It would be a whole lot easier if this wasn't a person primary means of transportation. Does the vehicle still pass California smog? Anyone in California performed this mod and still pass smog? Every time I watch your video's I'm learning something new. Appreciate the video's and the sharing of knowledge.

I have a 2001 E38 M62TU engine and am still at it based on your great work done. and...I bought the 2002 BMW X5 CCV that will have one hose connected like the 2002 BMW X5, where is the other hose from the oil catch can hooking in. I am deleting the internal OSV, and the pipe under the manifold that goes from the CCV over to the OSV and plugging the hole at front of the engine that would be going down to the OSV. I am not seeing where the second hose hooks in to the engine. I saw another similar video where he actually also used the 2002 external OSV but I could not understand that hose hook up @t if you could help me with where that second hose hooks up. If I use the oil catch can, do I need the 2002 external OSV to be hooked up and where, or just go to the oil catch can. Another thought was to tap a hole in the bottom of the oil catch can and tie it into the low pressure side of the oil filter housing with a T-Connector to return the overflow of the oil catch can to the engine. I hope you can make sense of what I am saying here Nathan. Thanks for your help.

I have a 2006 x5 3.0 and in the winter here in Maine when it gets colder the car starts fine no smoke and sometimes it will start to smoke and shut off and there’s oil in the engine bay over on passenger side I can’t find where it’s coming from. The car will not immediately start back up but will after a few minutes there doesn’t seem to be a loss of oil in the engine as well. I was told the car did not come with a cold climate pcv? Could I benefit from the delete and does this sound like a pcv issue. Also when the oil cap is removed there is a ton of suction is that bad thank you and thank you for the videos they are very informative

@NathanDIYGarage Can I delete or bypass my ccv and/osv? My M62TU keeps getting oil in the intake manifold and eventually the combustion chamber. And I get misfire with fuel cuts on all cylinders. I remove the intake manifold, clean out the oil, reinstall it. The car runs perfect for about 300 miles. Then the misfires return. Any suggestions? Video links? Parts list? I have a 2001 740iL

Nathan I know my problem is near CCV or a backplate issue, tell me so if I hear intense rattling sounds in the back corner of my m54 intake manifold... what is that?? I bought a DISA kit, so that component is fine.THanks!

Hey! I'm rebuilding my 530i at the moment and im curious to know if the car will throw any fault codes on "no communication" with the ccv/pcv?

, the M52 has an additional vacuum line attached to the Fuel Pressure Regulator. Has any one done a catch can on an m52? If so, how did you tie in the Fuel Pressure Regulator vacuum line

Right thurrrrr and right hurrrrr:)

Hey! So I haven't done this process but I have almost no suction at the oil fill cap. Does this mean I have a large vacuum leak? Any idea where to start looking?

Have you had any other Bmw's with the 3.0 smoking blue smoke that was not the ccv?

Great video! By doing this delete are you removing all venting of the crank case? And are you experiencing any vacuum loss by installing open filters at the dipstick vent tube and front of the valve cover?

Nathan, I have the M52TUB28 engine. On my CCV there is a vacuum port and hose attached which I believe runs to the FPR. If I do this CCV delete what do I do with that vacuum hose? Thanks!

Hi Nathan what is the easiest way to test if oil separator is bad? Take off throttle body to check if it has oil??

great video i replace the front fuel pressure hose and the oil breather hose to oil stick since then i have the car ruff idle you recommend me to change all the breather hoses with the ccv or just the hoses ?

Nathan's DIY Garage 17:27 you say you're going put a filter on the hose coming out of the valve cover (the one by the vanos) what are you using as a filter for this? can we get an Amazon/eBay link? or if I'm buying it from Advance Auto Parts, what do I look out for?

Nathan~thanks for sharing these videos , they do help a lot !!!!I have a question , Can I bypass or close these valve in 2004 x5 3.l ?Byron

do you need to hook up vacuum lines to start the car, or can you delete them as you did? I have a 97 328i

Another fantastic video, you keep My Bmw on the road. If I need Bmw info I go to your channel 1st. Is this the same procedure is there anything else I need to know for the delete on my 2004 M54 530i?

Do you plug the vacuum line that goes from ccv valve to fuel rail too?

After i decided to do a Valve cover Gasket and sealing that up pretty good, was getting slight sweating of oil every now and then. I Realized i've open up a whole can of other issue i started getting randum miss fire all over 02 sensor issue came up bank one bank two after driving 80 miles. I think what happend i put stress on the other old hosed hidden the top breather tube i discover a tear on the upper plastic intake hose i notice the rear vaccume line was old and brittle leaking in middle and now getting Lots of oil leak i notice its all coming out of the CCV valve unit especially right where the hose connect to it. So i decided to order the Entire CCV Valve Kit and some 5/16 and 1/8 vaccume line tube just in case and re do everything new. Does this sound common for this to happend car has 137K miles on it Thanks for all the GREAT video GREAT JOB!!!

Please answer the question. I am following you from Iraq. Everything you do I do I have a problem with the engine and it is emitting gas, knowing that there is no problem in checking the device

Hi, My bmw E83 crankcase vent valve went bad with pressure in engine & blow out my valve cover gasket. Do you think it could have damage any other seals?

asking if its not much of a problem for u to guide me im trying to do a ccv delete aslo on my 08 328i bmw asking for ur guidence on how it would be the correct way on doing so sir?

Ive got an E46 coupé with an m54b22 if i remove the pcv will i get any issues? Oh and just to add the throttle body on that model is different because its the same engine thats fitted to the E46 they changed it on the later E39's

I have similar problem. Engine smoking sometimes. I hope that not finish on replace pistons rings. Thanks Regards

can you still pass smog if i remove the entire system?

Hope I are doing Oky Nathan... I m a Namibian and I Owen a 325i 2004 model BMW... Can u help me to get the timing set-up took kity Please... ? At wat price and how will i get ?

What kind of filter do you use for the ventilation?

So, essentially, you can remove it all, plug all the vacuum ports on the intake, and put breathers on the tube coming out of the valve cover and the dipstick tube? This is where the unwanted oil gets into the intake, right?

nathan your my hero i just did this diy and my oil leak stop. But my bmw was broken into and the thugs broke the key tumbler and my key won't close my door or anything like totally dead. Batteries new though. now my car wont crank over to fire. any tips on what i could do.

Hi what’s the best manufacture make to get iv got a bmw e46 325i

I need to find out what kind and size of filter you use on the oil dip stick tube vent. You didnt mention it, but my O ring seal leaks after doing this procedure. Im thinking its because I plugged the vent on the dip stick tube. Thank you!

What size hose vents to buy for the dipstick vent and the other hose vent and where can I buy them?

Nathan's DIY Garage I liked your videos, very well done. I had a problem out of nowhere, I put a new ccv valve in last year, we went to go on a trip, and there was some smoke when we 1st started it, but that was it. didn't smoke the whole way. We went to leave and it was smoking at every light, and through some lean codes.i went to autozone, pulled the air filter, and noticed the ccv was covered in oil, the dipstick line came off, i put hose clamps on it, and it was OK for about 15 minutes, then it started smoking again, but not as bad and no lean codes. I drove it home, it was all highway, it would only smoke when i let off the gas, and accelerated again. so i kept my foot on the gas a little when we would slowdown. it didn't smoke again until we got off the highway. do you think i blew the diaphragm out of the ccv? all the hoses are good,and still hooked up. I hate to pull the ccv again, think i could do the catch can, or better off plugging therm? thx

my 04 330 has the same throttle body

help if possible m54. can I just block the equalizer off till my catch can comes and just leave the pcv there or not ty

I have a 2002 BMW 530i with the plug from the throttle in the same direction as the one in this video. My CCV also has the vacuum port to the fuel rail plugged off. The fuel pressure regulator is on directly on the fuel filter, that's why the fuel filter cost $75 instead of $20. Anyways I got the car for free so I can't complain. It was leaking badly from the oil seal that seals the oil filter housing to the engine block. I'm replacing everything under there while I'm in there and going to delete the CCV system taking it out completely. I will go the catch can route, because it just makes sense to help keep everything clean. I'm just not sure on if to block off the whole on the oil tip stick or stick a old V8 valve cover style filter on there. I don't want to smell any oil at stop lights since my wife will be using it as her daily. I would appreciate your advice on that specifically and any other suggestions you might have recently come up with that were not discussed here already. I also will be adding a wire extension from the starter signal wire so it will be easier to test the starter in future when needed. I'm will use AMSOIL 5W-40 EURO oil with the WIX XP oil filter. BMW coolant with mixed with Kangen water and DEX 3 ATF for my power steering. I loved your videos I subscribed and will be following your from now on. My next project is going to be replacing the automatic transmission pan and fluid. It would be nice to have you do a video on that next please. BMW call it a lifetime fluid but that's bullshit and you know it. I know that the filter is built into the pan, so you have to buy a whole new pan. I just don't know how to refill it. Wife just gave me a plate of food, got to go now. Your awesome bro keep up the good work. Call me if you would rather chat, I'm old school and hate typing :)) 407 252 8506

I won't to do this how do I set the catch can on a e46 320i other problem is m o t think it an inspection will it fail emissions , as for the catch can not find any caps on the intake to get suction to the can thanks

how about for the e38< I hear these have problems

are you sure the dipstick does not have to be blocked ?? it will be a vacuum leak though ???

Hi Nathan, What type of filter do you use. A one way filter [similar to a petrol filter or a small air filter [2way]. I'm not a mechanic so apologies if it is a stupid question.

hey i gotta take my intake manifold off to replace it, and im doing this aswell u think its easyer if i have the intake manifold off first?

i was thinking why do we need to put the CCV Valve hosing back in that Hard to Reach spot if were redoing it. can it be mounted on the out side by just using different hosed and clamps making Life easier for next time what your thought on this

How does the Ecu deal with not having the PCV? Does it through a code? I am in the middle of swapping my blown e39 525I motor to an E46 330I. I am plan on removing all things that are problematic and I could do away with such as the secondary vacuum pump and the back 2 O2 sensors. Also who do you use for tuning your ECU to calibrate delete these items?

Hi Nathan, will you work on some diesels engines, like M47(BMW) or newer?

my e39 has a fuel line to the ccv what do i do and my intake does have that pluged its in use the line goes under the cabin filter into the bottom the car

What about instead of blocking off the vacuum holes on the intake couldn't you just get a cheap pcv valve and connect the valve cover hole with new hoses? Seems like it would be better for the crank case ventilation.

Would that stop it from emissions pass

Hi Nathan. Nice work on your videos. I just did a head gasket replacement on a 2004 m54 car. I also deleted the ccv at the same time. It seems to run good with the exception of white exhaust. Would the lack of sufficient crankcase ventilation cause this to happen? thanks

Hey Nathan, if I wanted to bypass the ccv but not remove it, which hoses am I installing breather filters on? Thanks!

Hi Nathan, Is it possible to delete the CCV on the M62 or M62tu? If so, can you advise and document? Thanks.

Thanks for the video. I want to run e85 in my 2001 bmw 325i (M54). What special (if any) things do I need to do to successfully use e85?

Great video - Thank you!! Say, why do you have to remove the CCV? Can you just splice the hoses and block them and just leave the CCV in its place and be done with it? Again, Thanks!

If you are in a hurry it can be "bypassed" in less time but, the old pcv will remain in the engine bay disconnected.

another good video Nathan...just a question before I remove CCV and convert to catch can..question is My E46 52TU 323i when filer cap is removed there is no change to engine rpm ,idle is smooth and power is ok ..have Torque Pro in car Android and LTFT is -8.6 both banks ..have not done a railpressure test but MAF is new all intake rubbers replaced

Nathan. 03 530 no locks no wipers....it could be needed a new gbox under passenger floor .

Hmm i replaced my ccv and all hoses yesterday and now i get the chewbaka and ticking noise. I previously replaced the vcg and al gaskets of the intake where else can ther be a vacum leak? I have no codes, the engine is just not running smooth like it shoud it has a slight vibration at iddle and also vibrates while driving

thanks for your replies, so would it still be the same for me if I do that in stead and just cover the crankcase and plug the hole. would it hurt the engine, or have lights on my dash board?

Is this possible to do to the 2006 bmw n52?

I've not been able to find the capped off connection in back of the intake manifold.

What is the funktion og these parts?

What is the benefit? Thanks

Would it be safe for me to block off the oil dipstick vacuum line or should I vent it like you recommend initially? Also, wouldn't venting it cause a vacuum leak or rough idle? I'm not looking to install a catch can.

Hi Nathan. What's the advantage of removing the CCV? why not just replace it if there is a leak?

Would this work on a 03 e46

Just for the sake of not having to dig all the way down past the throttle body to remove the ccv, can I just cut the pipes filter or block the appropriate pipes then reassemble?

can i do it on n52 engine?

Sorry on late respond, with cap off on radiator ,engine works little bit rough and like it started to misfires but doesn't blow coolant , turn cap on and engine start to shake little bit? I restarted car and works fine, wormed up any take to ride and there is no problems, not even smoke come out from exhaust , coolant level seems ok but I notice little oil drops on garage floor

does this still allow the oil to be sucked up to the top half of the motor? Ive heard mixed tech reviews on pcv and ccv removal

Just so you know. In the UK this will lead to an instant MOT (inspection) fail. It’s horrible from an emissions stand point and you’ll be breathing in fumes. Happy motoring

I'm curious, why would I need to actually take the ccv valve out of it's mounting place? Couldn't I just cut eevrything off of it and leave it there. It would eliminate having to remove the icv and the throttle body. Or am I missing something? If I were to add a pcv where would it go?

Has anyone ever tried simply running high temp hose instead of the plastic stuff and moving the CCV valve a few inches out from under the intake so it could be serviced easier? Seems like you could keep the basic valve/system but use the rubber hoses to move it around a bit rather that using a catch can.