BMW E46/E39 M54 Engine Oil Consumption Fix (02Pilot Mod) DIY
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- Опубліковано 14 жов 2024
- Please check out the following link for further discussion on the 02Pilot mod: www.bimmerforu...
You need about 2 ft of 3/32" ID vacuum line and about 6" of 1/4" ID vacuum line (or whatever line the 3/32" line fits inside of perfectly).
You should also purchase and install a 12mm non return check valve for your oil return line here: amzn.to/2emCgHz
This video is for entertainment purposes only. 50sKid assumes no liability for any repairs or modifications performed by the viewer as a result of the information contained in this video.
I just want to let you know, your work is phenomenal. Its because of you that i can afford to own my car.
Will W I second that will
@@ralphlicea1658 I third that
@@karsleers7195 Forth that.
I fifth that
I sixth that
I performed this mod on my car and it works! My oil consumption is next to nil........I removed my intake manifold, replaced the coolant pipes, CCV and refreshed the vacuums lines. My first time getting this deep into an engine.
When you apply full vacuum to that port dont you risk sucking the engine oil up the oil return line? How dirty was your intake manifold?
Nice I just did the same to my car, I felt awesome after I was able to do all that myself.
Also, it appears that a substantial vacuum reduces oil consumption. It also appears that factory settings and equipment don't maintain that high of a vacuum. I particularly enjoy the way u examine the data and allow it to guide your conclusions.
You mesn more vaacum there are less oil consumtion there is?
Factories want to sell cars, so they are made theresfter. Like oil fume go to airintake unfiltered and carbonizes the intake and valves, pollutes the engine, my opinion there can hust aswell be open crank case solution. Cleaner sir for the engine. The fune still gets out in the atmosphere anyway, then the fume vould be lead directly to exhaust instead. So we dont get it in climate intakes or smelling it through the doors/windows. Worse air, more gas/mileage😊 if they made cars quality on parts similar to trucks we could had the cars for 18 years and maybe just haveing an oil leak repair besides services😊
I know it’s 6 years later lol but yeah the mod increases vaccum wich helps seal the oil control rings better
You. Are. THE MAN!! I've watched this entire oil consumption fix process and you have the patience of a saint. I would definitely say you were a combination of Sherlock Holmes & Mcgyver.
Thank you for your videos. I run a BMW only repair shop. I have done this mod 4 times already with excellent results. And I always give you credit for it.
In the video he shows that this mod creates more vacuum, and even more on open throttle. Can't this damage the top lid gasket or valve body gasket after a while, i mean bmw engineers designed a certain vacuum for a reason, I'm worried some components might take damage over time. Did you have any experience with this?
@@andreachooo9847 is this the proper repair? No. Does it works? Yes. When the car is worth $5K or less and the owner is adding 1qt every 200 miles it doesn't matter. I did my first one 4 years ago. Customer is still happy and the car is running good with no side effects.
Do i need to use the non return check valve or can I just leave all the lines as is and just add the vacuum line?
@@andreachooo9847 you do. If not it will suck oil into the intake
Where do I put that one on the dip stick tube? And where can I buy one return valve like that because his link is out of stock
My oil light came on again and I was able to see what impact the o2 pilot mod has had. With this mod I have gone from 400 miles/quart to about 1400 miles/quart!! Thanks again 50sKid!!
Have you checked out your intake manifold and seen if it's full of Oil?
@@alant28 I haven't checked but haven't noticed an issue. I was trying to say that with the mod the oil consumption has dropped substantially.
mine gets oil in it. What is the issue?
Thanks to 50skid for the superb video and explanation! Showing why this makes sense by providing some actual numbers. Still wondering a bit about the implications of higher vacuum but finalizing this mod in my car today. Thanks to the O2Pilot author for the insight as well!
This is what im wondering. Is the increase in vacuum being put on the oil return line?
@@gregorytolson4621 Your vacuum is highest while idling
I wanna thank you for this excellent video. My 2002 325i which was consuming 1.5 litre of oil every 1000 km and throwing up the low oil level light after a 1000km high RPM journey. I followed your instructions to the letter to install the O2 Pilot mod, except I used the smaller vacuum port since it is unused and thereby not requiring a step up adapter for the hose. have now travelled 500 km after doing the mod and I have not had to top up the oil at all. I just did a another 500 km hard continuous drive and at the end of the journey, not a drop was added also. Thanks a lot to you man.
The oil consumption was alright for a while after doing the mod but it started going bad again. I did a flush and an oil change switching to viscosity 60. I’m a happy camper again.
@@DrSec56 60 is pretty thick compared to stock. Do a lot of people run it?
ironman tooltime, Due to the age of the M54 engine, the oil recommendation has been revised to viscosity 50. It is alright to use a +10 viscosity. It does seem to have cured the oil consumption problem together with the O2 pilot mod. It’s 3000 km without a drop of oil added.
@@DrSec56 interesting cheers
Just drove my first 500 miles no change in oil consumption '01 530. Comments for those attempting
1. The p/n to cut for the 1-way valve is 11157532649
2. I replaced all the ccv tubes 2 years ago with URO parts and they all were completely brittle and broke apart. I do live in AZ so it's hot, but I'm only using BMW parts from now on.
Just a word of warning: if you do the mod WITHOUT the check valve, do NOT do what Jason does at 10:00, or open the oil filler cap, with the engine running - the vacuum created when the valve cover is opened WILL suck a bunch of oil into the head!
Check valve installed. I just got done with this job and I'm about to crank it up!
Thanks for the heads up
Did he include the check valve in the video?
Yes, did this and my M54 became a white smoke machine for a while :)
did you end up fixing your oil consumption issue?@@MatejGirasek
Thank you 50sKid for your time and effort on your chanel.
10 years ago i bought a 2003 330ci convertible. In the North of Sweden. Its my summer car. Anyhow! Yesterday i did my 02pilot mod. The only thing i remowed was the airfilter housing and the upper big intake hose. The rear plug was broken so i took it with my fingers. The smaller hose was easy to conect with a plier. The rear tube was tricky, i took a drill and made the hole more like a funnel at the end. Once i got it started i could take a long stone aged plier to get it in all the way. The only problem i had was some big brownish flying things that takes a bite like a chicken nugget. It was +30 C and sunshine, and i had to work fully dressed. When i had the 2 tubes connected i put everything back and started the engine, and the vacuum was in the rear tube, so the arrow on the valve is pointing to the back of the engine.
I have the Torque app and obd sender, so i can see all sensors, but not erase fault codes. The vacuum meter is the same now as before 02pilot mod. The funny thing is that i get BOOST at full trottle on first and second gear, before and after the mod.
I had to fill up a + pint every 2 tanks. Now i have 2 trips to the gas station and i will hit 200 000 km.. 124 274 miles.
The CCV is never changed, but i dont have cracy vacuum when opening the filler cap.
Tried this fix 3 months ago with new ccv works really well. On a 325ci
I’ve now had this mod on for over a year and it’s a daily driver it’ still works really well
50sKid!!! REALLY APPRECIATE THE TIME AND EFFORT THAT YOU PUT INTO THIS AND YOUR OTHER VIDS!!!
I'm hoping that this works and gonna try it today. My 530i is sucking a quart down per
I hope it works for you, man. Let me know!
I was in the same boat +B Kreative, the mod made me keep the beemer, it works!! (I replaced he CCV and did the 02 pilot mode only, nothing else). Some consumption after the first week. 3 weeks later no consumption. Awesome
***** Before O2 pilot mode I had 1 quart per 120 miles on the street, 200 miles on the highway + some street. After O2 pilot mode AND CCV replacement I am close to 350 street, still to check highway I'm guessing close to 600... As you can see I have a nasty case of too much oil consumption, I still need to do the Ac Delco solution piston soak, other than that I'm much happier without being concerned about oil every week! (I thought I had NO consumption but I checked it yesterday after a combined street and highway 500 miles and had used a quart since the O2 mod..
B Kreative wel?
if u had 1 quart per 120 miles than you have to repair your engine! its a super huge usage when i had, and i had 1 liter after 1500 KM's
Great job. It does make you wonder just how much testing and development BMW put into the transition from m52 to m54, you would think oil consumption would be a basic assessment to make in the engine testing stage.
I just did this 6 years later and so far so good not seeing puffs of blue smoke on hard acceleration anymore
Thank you 50sKid your videos are so well documented , imo the best around anywhere.
The mod is working on M54, i also added the one way check valve.
I used vacuum port on the rear manifold with the same diameter on the ccv valve.m M54 3.0 E39
You just ran a 3/32" vacuum line to the manifold? Used the small port instead of adapting to the 1/4"?
You are the BMW doctor! Thanks that you save me so much money! You are the MAN!!! I did it your way and my m54 BMW 330i stops consume oil! Thanks again, man! Wanna buy you beer, a lot of!
Warning!!! Do not open oil cap while car is running with this mod. I've been able to flood my intake with oil, just opening the cap. Learned the hard way that a non return check valve is a must.
+50sKid what do you think about this? +BioZ in wich tube do you think is necessary a non return valve?
BioZ, i did this mod 2 days ago and tonite just dbl checking this under the hood and i took the oil cap off while my engine was running, CRAP! How long did it take to clear your intake full of oil?
Thanks BioZ for the warning
Did you install the check valve "now"? And was it resolved by doing so?
Guys i've read online that i wouldn't need the valve at all?🤔 and if it's needed, have yours been working since??
Thanks for the time and effort, I was just searching to rebuild my piston oil ring but with this mod I can save the oil consumption for last time.
Hi!, do you still have the mod 3 years later? I'm about to mod my 02 325i
did this on my 325i after watching the previous oil consumption video, changed out the oil, and so far absolutely NO oil being burnt off =D
DcApollo did you use the non return check valve ?
Ridwan Maassarani I didn't use a check valve, just a bit of 4mm ID vac hose from the ccv to the intake
DcApollo what year is your car
Ridwan Maassarani 2001
DcApollo I have a 2006 25i, do you think the say solution could be implemented?
Old video but thought I’d share my experience, doing this did decrease my oil consumption. However I autocross my car and I ran into issues with the vacuum hose falling off CCV port, and had to add a zip tie or hose clamp to get it to stay on. It’s a tight fit to get my hand in there so I ended up having to remove the throttle body to get the clamp on.
I'm about to do this as im in the middle of replacing my CCV. Any other tips when carrying out this mod? Which port on the back of the intake manifold? Also is the port on the manifold the same size as the one on the CCV?
Thanks
@@joefowler9600 www.google.com/amp/s/gumptiontrap.wordpress.com/2020/04/06/how-to-reduce-or-eliminate-oil-consumption/amp/. This is a pretty good write up, I don’t remember how I chose which port I used, but it wasn’t the same size as the CCV. But I was able to put the smaller size hose inside the bigger fine. I also put a zip tie on the manifold port which is pretty easy to do.
I enjoy these videos as well. I've read a few of these comments and I'd like to point out that the "02 Pilot Mod" likely would not fix your problem if you have noticeable smoke coming out of your tailpipe at this point. Your CCV would need to be fairly new or atleast not clogged what so ever for you to see promising results.
Another great video also reduced my oil consumption and replaced the CCV a year earlier still doing preventative maintenance but loving my car more and more parts starting to get very cheap in South Africa.
Awesome vids really appreciate all your time that you put into your vids
Completed this mod and it has worked awesome
No more oil consumption problems 👍🏻👍🏻
Thank you 50's Kid for all these informative content on E46 M54 engine, its help me a ton while I am working on my 04 330Ci that's been sitting the garage for years. This is a cool mod and I am definitely go to apply it to my car. Many of us are looking forward for you M5 oil separator video, hopefully it will somehow get on you new video list. Anyway, I just wanna take the time to said I really apperciate your works more people should've seen it.
Your viideos are fantastic! Thank you for all of the time and energy you have put into this channel! One thing I noticed in this video... you mention that 325's do not have the vacuum-controlled exhaust flap. My 2004 325xi DOES have this vacuum line and has the exhaust flap. So, YMMV to other 325 owners!
Another great video. Did you ever do the video on putting the M5 CCV in the M54 engine?
Hey Jason. I really appreciate your videos. I am an e46 owner, but n46b20 engine (2.0L 4 Cylinders) and I can confirm that the CCV system is a nightmare. I am working on the removal of the system and instalation of a PCV system instead. I would like to comment that in the pcv system you will need a second port in the valve cover working as a breather. As I didn't want to manipulate the valve cover I did a small hole in the oil cap, and added a termination to connect a hose that connects to the air intake after the MAF and before the throttle body. I will finish the mod in a few days.
Besides, I would like to mention that, in your video, you measured the vacuum produced by OEM CCV system and it is very rare you do not see vacuum, since I have checked personally on my father's e46 330i car to open the oil fill cap and it was difficult to open and then you hear the vacuum sucking, so I would say that your CCV system was not working properly??
Thanks you a lot your your very interesting videos! Regards. Jose.
Jose you should never need to put a hole in the oil cap. There's already a port in the valve cover where the original CCV system attaches to it so it can suck the blowby gases out. That's all you need for a PCV system. That is the "origin" where the gases come out. You then run a line from that to your intake manifold to recycle the blow by gases into the combustion chamber. And you want to put a PCV valve in the middle of that line so that 1) the flow is only one way and 2) the orifice size is reduced so that the strong suction from the intake manifold doesn't suck all the oil out of the valve cover. On your father's car, if his oil cap is difficult to remove, that means the diaphragm has failed inside the oil separator and all the CCV components need to be replaced.
Thanks for the video, I also performed the 02Pilot mod to my E46 330i. One thing to note, in the video. I would NOT check for vacuum at the location shown in this video without the check valve installed. I bought a vacuum gauge to also test and ended up sucking some oil back into the CCV system and the intake manifold, causing the car to smoke pretty bad. I am fairly confident the smoke was mostly carbon due to the smell and color. I cleaned what I could without pulling the manifold, it seems most of the oil was in the air injection thing, held in with the o-rings on top of the manifold.
Same here...didn't have the check valve and drew a bunch of oil into the intake, smoke like mad from exhaust. Removed the throttle body boot and oil was pooled up in it. Not good.
I did the O2Pilot Mod on my ZHP, I've ran 400 km so far, will post the results later when mileage increases. The first impression is that when i used to drag race it it would burn oil and always would drop the level to low, after i did the mod and raced the level stayed the same, no more blue smoke at the traffic lights.
Hi, do you have any recent updates to share so far?
@@akdomun Hi, I have the detailed results at ZHP MAFIA, check it and pm me if you have any questions.
www.zhpmafia.com/forums/showthread.php?21379-ZHP-NA-Project-More-Power/page19
for the moment i have run 8500km and only added a quart when at this mileage it would have needed 4 or 5 quarts.
Hi 50'sKid I noticed you listed the amazon link description incorrectly. The link you posted is for 8mm return check valve and you stated would need 12mm check valve. Just noticing after I purchased realized was the wrong fit. Thanks!
I wish this video was out sooner, I end up purchasing a baffled catch can as soon as I watched the other video. never mind, please keep up with the hard work and thank you for your great tips.
Sorry about that!
This video was such an incredible help. A BIG thank you!
Hello 50sKid, Love your video's, very informative and helpfull. probably one off the best on You tube!!
Whats the idea behind the non return valve in the oil return line? I also noted that in another video another non return valve was used in the line from the inlet manifold, why this modification? I'll understand the vacuum line from the inlet manifold to the ccv.
thanks for your answer, Ton
Check out this video here where I explain the CCV and reason for the non return valve toward the end: ua-cam.com/video/5rs1rnVnXhY/v-deo.html
Thank you,my m54 2.2 last year start to burn 1lit/1000km .After installing 02 pilot mode-no burning oil,already 2500km made.Next time i want to install M5 ccv+cold weather oil dipstick. No catch can setup.
thanks for great video 50's kid. So you recommend installing a check valve on the tube that goes to dip-stick when installing a 02 pilot mod ?
Nah not anymore--the valve didn't hold up perfectly after a year. Maybe I need a higher quality one.
Maybe should update your recommendation in the video.
Thanks for the explanation.
So I will do your pilot mod with the hose.
Thanks so much for your time .
The increased vacuum increased crankcase pressure which pushes the rings closer to the cylinder walls. Wouldn't this also increase wear to the cylinder walls?
no. Rings are supposed to be to the edge of the cylinder walls. That's the whole goal, right?
I just did this on my 2002 525i w/ M54 engine and am eager to see the results. Jason said he used a 3/32" ID tube for the inner PCV vacuum port, but I found that size was too small. I ended up using the vacuum line BMW (PN: 11657803732) sells (I had some extra laying around) and it fit the port perfectly as well as fit snugly inside a 1/4" ID tube for the manifold vacuum port. I used some silicon spray to help the tubes join. I know you've literally heard it a 1000 times Jason, but you are great and you look great with the new lifestyle. Not so pale anymore! :) Many, many thanks!!
Thanks a whole bunch man, really appreciate it! :) I have a '01 320 i M44B22 and also drinks 1l per 800 km,
smoke and all that. It's starting to be embarrassing, but I don't want to buy a new car, cause I am truly happy with the ol' 'gal.
I will do this mod together with replacing the CCV and all tubing around there, will report the outcome after 1000 km!
I think you just saved me min 1000 EUR for a complete engine rebuild. I owe you a beer ;)
Sandi Žbogar any update?
Great videos, 50sKid! I was wondering what is the difference between doing the 02Pilot mod and just removing the diaphragm from the ccv?
Removing the diaphragm will suck way too much air flow and basically suck the oil up from the dipstick tube. Plus because the diaphragm isn't there, air will leak in around the cap on the oil separator.
+50sKid Any chance on getting that E39 Oil Separator install video? I've got the all the stuff (check valve on its way still) for the catch can install. Plan to use a Husky water/oil separator (originally for air compressor lines) for the OCC. But would like to see how effective the E39 Oil Separator is before I take the CCV out and install the OCC. Thanks for doing this!
Is there any long term effects of this? Is it damaging at all? Would like to do this to my 330i if I know it will not cause more issues.
Want to thank you for this, solved my m54 oil burn issue immediately after. Also did a new ccv as per your video. Thanks alot
Hey 50's kid I love ur vids. Just had a quick question, I did this mod on my m54 engine and for some reason it caused 2 codes to pop up, p1504 and p1508 and put it in engine failsafe mode. Just wondering where u would go from here. Thankyou for ur time!
At first, thank you for such detailed and easy explanation..
but, i have one question, what type of oil consumption it's fixes, does it fix oil consumption on worn piston rings?
I have M54B25(E39,2003) with 135K millage, in extremely excellent condition.. but, suddenly, out of nowhere it started oil consumption(before, it was about 1 liter in 6K miles) and now it needs about 1 liter in every 1K mile.. Is your solution accepting my case? or i should rebuild my engine?
yes , this is what I am wondering also. :)
Great video, my CCV was replaced 4 years ago and my 530i burns a litre of 5w40 every 250 miles. I would like to try this.
By the way, the CCV drain hose is completely dry. That's because the CCV has failed again or because of lack of vacuum?
thanks a lot for this mod, my oil burning issues are over...God bless u sir👏👏
Did you ever do the video on putting the M5 oil separator in the M54 engine? I searched your channel & could not find it.
Hi Jason,
Just wanted to say thanks for all of your videos and help, just purchased a 325Ci about a month ago and have SO many parts coming in to get her back in shape.
That being said, I'm wondering if it's a good idea to attempt this mod instead of replacing the entire CCV (which seems a bit daunting). My car has exactly 130k, haven't driven it much at all since purchase, and by the looks of it, very little has been replaced. I've undertaken replacing all the gaskets and seals, as well as VANOS and DISA rebuild, but this (and the cooling system lol) is bothering me a bit. I live in Florida so weather and mayo probably won't be an issue!
Excellent video. Is this not a viable option in cold weather climates? Why did you mention it as good in warm weather areas?
In colder climates the CCV tends to clog up with a yellow mayo like substance which is water from condensation mixed with oil. If this hasn't happened to you, then you are OK to install a new CCV and use this mod to solve the oil consumption problem.
Hi, your videos are so helpful. I've had problems with the CCV system and thanks to your video was able to replace the system in place. I'm still suffering leaks which I'll get to the bottom of (I appreceiate it's impossible to diagnose without being there). That said...... I did a vacuum test. I thought I'd just check that the problem was vacuum rather than fuel pump ( the car - a 330ci - has done 136000 on it's original pump). When I disconnected the top hose from the crankcase and tested it the vacuum did indeed drop (I've done the 02pilot mod so initially had a much better vacuum reading) but much more significantly the car started to run very badly. Significant white smoke (it was dark but I'm certain it was oil) and almost stalling. Needless to say I got the hose reconnected asap and after a couple of mins and a restart the car cleared and - aside from a low idle (as before) - began to settle. I took it for a run and all was fine. I have tried the same procedure once more with the same result. I'm thinking that the oil control rings could be in very bad shape and removing what little vacuum is present in the crankcase is allowing oil to get into the cylinders. The car consumes oil at a similar rate to that discussed in your videos but emission tests at mot have always been very good. Have you any thoughts as to why the immediate oil burn? I've owned the car for around 100000 miles so know the service history is good. Thanks again
When you replaced the CCV did you also clean out the dipstick tube and all the pipes. I see many comments where the oil cap is removed and oil is pulled into the intake. This is probably oil that is already clogged up in the pipes or engines that have high vacuum without the mod initially. Without the o2 mod there should very very little vacuum as shown in the video. If there is large vacuum without the o2 mod then I would not advise doing this mod as there is a problem elsewhere in the engine creating too much vacuum. The oil cap should be easy to remove and not be held down tight by excessive vacuum pulling it down. The non return valve inserted between the dipstick pipe is a preventative measure to stop the oil being sucked into the intake.
Hey 50s kid. Love your work and I have an 02 325xi that eats oil like crazy. Im really interested in changing out my ccv system but don't want a catch can perse. Do you think an air oil separator like for a turbo Subaru would work?? Or is that basically what BMW has designed?? Could you lmk what you would recommend please
Thank you for your effort !
I have to ask before I go for it, does this 02pilot mode affects the engine in anyway such as an over vaccum flow in the crankcase or the intake manifold leading to same problems as a bad ccv, oil leaks pressure in the crankcase etc...
Thanks in advance
keep up the good work !
No, no negative effects like that.
iv done this MOD on my bmw 330i im very happy
Love all your videos!
Would you recommend a catch can system with an oil return to the dipstick over this modification?
Do you worry about the wear created by the increased vacuum?
If you don't have to replace your CCV system due to clogging up every year, then I recommend this modification over the catch can. The oil fumes with a catch can are too annoying.
50sKid is there wear in the engine that is possible with this mod? Thanks
@@vipereavp no
Awesome video... even at ludicrous speed... I understood your perfectly. Looking forward to more.
Hi! Thank you for another great video! Did you ever make that video on the M5 oil separator install on your E46? I find this topic extremely interesting, so just wanted to check if you did because I can't find it :)
Hey guys i just did the 02 pilot mod on my 01 e46 like yesterday, i have been burning about 2qt every 1k miles. I cant wait to see the results after 1k miles,
Update on my 02 pilot mod, the first 1k since install it burnt about 1.5qt, since then i see about 1qt burned every 1300miles. This is already a great reduction, i wish it completely stopped burning, but im happy with what i got.
Another update usually il let my car run until the oil light comes on which is about 2qt of burned oil, and it used to come on every 1k miles. This time around the light came on after 1500miles. I wish there was a way to make the 02 pilot mod more effective.
@@snkahu check your system for vacuum leaks
@@lawpenner you think vaccum leaks can cause more oil consumption?
@@snkahu the O2 pilot mod directs vacuum pressure to suck piston rings toward the cylinder walls, to create a better seal and reduce oil consumption getting past your oil rings.
If you have vacuum leaks then you may not be getting as good of vacuum pressure, and your O2 pilot mod may not work as effective, thus you end up burning more oil
your my fav bmw guy on here explain things so clear and saved me money and iam learning as i go thanks 2 you
Thank you for all of your videos and detailed explanations behind your clear and linear thinking. I greatly appreciate you taking the time to publish your work. Just curious if your're still running the 02 Pilot mod on your newly rebuilt engine? I have a 2001 Z3 roadster 3.0i M54 engine with 51K with very little oil consumption (1/2qt every 4K miles), but I'm thinking about completing the 02 Pilot mod anyway. Any reason why I shouldn't?
Thanks in advance!
I realize you installed the M52TU rings as part of your rebuild to resolve the M54 piston ring issue, but still curious if you retained the 02 Pilot mod or reverted to the stock CCV set-up.
I went back to the stock system--no need for the 02Pilot mod now. No need to do the mod until your consumption actually gets bad. The one problem with the mod is if your valve cover gasket is a bit leaky, it can suck more air in through those leaks because you're putting the crankcase under vacuum and that would cause your fuel trims to go up which would make your mileage poorer.
Hi great video. Just not 100% convinced of the Zero vacuum measurement? I would have thought there would have been some at least
?
I did the 02mod a while ago and it did cure my oil consumption completely. After that I decided to replace the CCV for new parts, since I suspected a vacuum leak somewhere. Shouldn't have done that, the consumption is back, even with the extra vacuum hose. What I noticed afterwards, is the fact that the vacuum is nowhere near as high with the new parts. I assume that the new spring in the CCV doesn't let the valve open wide enough to let the appropriate amount of vacuum get to the crankcase. That might explain, why some people experience higher oil consumption after replacing the CCV, as you mentioned in your previous video.
Hmm, that's very strange and interesting. The thing about the vacuum being applied at the take off port is that it comes before the valve, so the valve would never stop that vacuum from being applied at the crankcase. I wonder if maybe your lines are clogged? Is there vacuum at the valve cover when you unplug the tube?
I checked the lines for clogging, didn't have any. I understand, that the extra line doesn't affect the valve, but since the CCV is connected to the intake manifold, there is vacuum applied to the valve membrane. Thing is, before I installed the new parts, the tube that connects to the valve cover already had some vacuum, even without the mod (maybe the old membrane was deformed/torn or its seat was clogged, which allowed some vacuum to get to the valve cover). Not too intense, but noticeable. After the mod, in addition to higher vacuum on said tube (with the old CCV), I also had vacuum in the dipstick tube, which I don't have with the new parts, go figure. I'll try a direct line from the valve cover to the intake manifold next, see how that turns out...
50sKid e e ess0a español
At 5:53 the gauge shows almost no vacuum pressure because the with the CCV input hose connected to the gauge, the valve cover hole is wide open causing the crankcase to have zero pressure and the same inside the CCV. You need to plug up the VC hole.
Would you be able to do a video on how to replace an oil level sensor on the e46? My yellow oil light comes on sometimes for 10 seconds then goes away after start up. I'm pretty sure it's the oil level sensor and I know that it's a common thing with these cars. That'd be awesome if you made one, thanks!
So what are the drawbacks of this mod? Of connecting CCV with intake manifold?
The CCV already draws vacuum via the intake it just increases with the additional port from the intake
Thank you for the video. You start mention that th 02 pilot mod is not for cars driving in cold areas. I live in Denmark, which can be rather cold in the winter. Why is it, that cold weather is not good for the o2 pilot mod?
Hello 50skid. I want to ask something. I am now in the middle of this working process on my CCV. I want to ask if this oil consumtion fix is safe. How many miles did you drive on this setup. I mean on this vacuum boost hose from intake manifold to separator. No ofense to you. I love your videos and i really respect your work. I am just curious to know what do you think about this setup after some miles. Thank you for answer 😊
I drove for a few months with it. It's safe, there are hundreds of people who have done it.
I found a break tru on my ccv catch can set up. It works so wonderfully. I wanna talk to you 50skid
This is tremendously entertaining!!! I will do this mod asap as I have a 330Ci and it's burning oil every ~1500 km or so. Big ups!
BioZ4 months ago
Warning!!! Do not open oil cap while car is running with this mod. I've been able to flood my intake with oil, just opening the cap. Learned the hard way that a non return check valve is a must.
@@leonchang9692 Where did you add in the valve?
@@Runk3lsmcdougal I ended up deleting the OEM CCV and went with German Auto Solution's CCV replacement kit. It has been working well for the past 4 years.
Hello 50's kid, greetings from Portugal! I am a subscriber and love your videos, they helped me a lot working on my car. I bought a 04 e60 with m54b22 engine about a year ago, running on lpg now, and i want to do a ccv mod but I am indecisive between o2 pilot mod, pcv valve without catch can and e39 m5 ccv. What would you recommend? Thanks
I recommend the 02pilotmod
Thanks 50sKid, love your vids! 2005 325xi here, uses about a quart every 500 miles. No blue/gray or any noticeable exhaust coming out of the tailpipe. Live in Twin Cities, Minnesota. Questions for you please. 1) Is it possible that this mod could blow out/suck in any other seals because of the vacuum created? 2) Can this mod be "disconnected" during the winter months, then hook back up for the warm months? 3) Could you use an insulated vacuum tube? Thanks, Dan.
1) no 2) yes, but not necessary to disconnect in winter months 3) not necessary
Hey 50's Kid . . . I noticed that it has been over 5 years since you did the Mod to reduce oil consumption . . .
Question 1 . . . is that still the best solution?
Question 2 . . . You mentioned installing an e39 M5 Oil Separator . . . I don't see a video on that . . . Did that not work better or not at all? Is that why we don't see that video?
Question 3 . . . Your Non-Return Check Valve link is to a "Fuel Line" Check Valve . . . is that the correct Check Valve to Install . . . And can you provide a picture where specifically that check valve should be installed and what direction the flow should be? I don't want to install it on the wrong line and/or in the wrong direction.
Thanks.
Great job with this channel man.
I read some people saying that in some models, you just need to remove the belly pan to access the CCV port. This is the way I'm gonna try on my '01 325ci. I'll let you know if i get away with it.
On the other hand: What about the ID hose? Some people using 3/32", 6/32". I checked the oem diagram and saw a 3.5mm port. Shouldn't be that one the ID hose?
Thanks!
no you do everything from above. Yes it's 3.5mm ID hose but I believe 3/32 works.
50sKid So from underneath the car it's not possible to access the CCV? Some people say so. That way would be the easiest one.
I'd also like to use a check valve for the oil return hose as you did. Not sure how easy this proccess is.
Thanks for the video.
Question. Do I have to install the check valve on the return line with the Pilot mod hoses or you were referring to the previous can mod video?
Please advise.
you don't have to
another great DIY , I was wondering if this will work in a cold climate coz I live in Michigan and I do have this oil consumption issue ?
Me too 😕
@@hamzeh509 yes. you can do this in cold climate
Great video again! I actually just did the 02pilot mod cause my E46 320i uses a lot of oil too. Also, some months ago I had the entire CCV system replaced (winter version). Applying the mod was easy. I used the large tube from the intake that was capped. And just like you I checked the vacuum with the same meter you use. And voila, the cauge reaches 18 mercury. But... soon it will drop back again no 0. When I repeat these steps, every time it reaches 18, but then soon drops again to 0. That isn't good right? What does it mean/what could be the problem? And how to fix it? Could it be that I used vacuum lines that are just a little too loose connected on the CCV and intake manifold? Or is there a leak somewhere else in the CCV? Please advice. Much much appreciated!
Umm... that's very strange. Could it be a problem with your vacuum gauge? Maybe it's a bit old & there is a leaking seal inside? Can you try checking something else that produces vacuum or air pressure and see if it holds?
Actually it's brand new. I bought for this purpose alone...
If you put your hand over the tube while running, do you feel the suction remain strong or does it give out?
Ah, haven't tried that yet. I just relied on the gauge. I'll try tomorrow. What if the suction gives out?
Update: after measuring the vacuum yesterday, today I started the engine and a huuuuuuge amount of smoke came out the exhaust. My guess is that the o2pilot mod I did resulted in oil being sucked up from the oil pan when measuring the vacuum. What's ur guess? So today I decided to also install the non return valve. Result: the vacuum now stays at 18 mercury! Nice one. When measuring the vacuum the membrane in the CCV can be heard very loud. And sounds like a large balloon deflating. Did you hear this sound too when checking the vacuum? I wonder what it means.
I'm a little bit confused. Is there a difference between the little and the big intake ports?
I just want to know if there is a necessary for me to buy the adapter for the hose.
Thank you!!!
Great as always. A question in terms of relative impact on oil consumption between catch can and O2pilot mod.
I removed catch can, installed a new CCV, with this O2pilot mod (and the leaky vacuum lines). Car runs super smooth. However, I have not seen any reduction in oil consumption. I did not have oil catch can long enough to know for sure but is it correct to assume that both methods (O2pilot and catch can) have same impact on oil consumption?
They will have the same effect on reducing oil consumption as they both effectively add vacuum to the crankcase.
@50sKid pleaes could to me if this mod is safe to do in the UK climate? And would you replace the ccv with a new at the same time? 😊
50skid thank you for this channel, really. I have a 2001 530i with the M54. It has about 70k miles on the clock (Japanese Export). I do not consider my oil consumption sever: Max 3/4 quart per 2500 km (round 1500 miles), and I use 10w40 (I live in a hot climate; 10 Celsius/50 Fahrenheit is the coldest it can get) .Probably in my case this mod will considerably reduce the already mild oil consumption. But I want to keep the car and I am wondering whether going for this mod or installing an oil catch can now would be of benefit to the engine (particularly piston rings) in the long run. Obviously, over time piston rings will gradually consume more and joint clearances will become bigger. My question is would any of these vacuum increasing mods make the rings consume faster as they're being pushed tighter towards cylinder walls for better seal? Perhaps, sticking with the ccv system only and waiting until the oil consumption becomes intolerable; let's say when mileage hits 130k, would get me the most out of the stock piston rings and would even save the cylinder liners as well. Of course with regular oil change every 5000 miles. I know this video has been here for a while and am a bit late, but I would really appreciate your thought about this and you will help me decide.
Ahmed Al Kerraz I simply have no data to confirm one way or the other whether this will cause increased wear of the piston rings, however you are balancing potential wear with the definite fact that burning oil causes caked on gunk to build up between the rings, in the ring lands, and on top of the piston.
Thank you for your reply. That's a good point. Honestly, I never took into account solid deposits building up that would likely cause more damage and wear. So, I guess am going for the 02pilot mod for now at least.
Jason, where would we be installing the 12mm non-return line? On the tubing we use for the mod?
in the oil return line that goes from the oil separator to the dipstick tube. You cut it in half and install the valve inline
Recently I tried just replacing the ccv + hoses hoping it would solve this oil and smoke problem. It solved the smoke problem but not the oil. That being said I would like to try this 02 mod but was wondering if you think it will be ok without the return check valve. thanks and love the videos.
It probably will be.
hello 50's kid,
would this be a good preventative maintenance mod, if there is no noticeable oil consumption issue?
No don't do it until you have the oil consumption. If your valve cover is leaking in any way, it will cause slightly poorer gas mileage.
great vids, say do i need to do the catch can if i live in a hot country or should i try the rings first?
Will it work for me, im in a cold climate area?
Hi !
I am doing some research and have some interesting information regarding the O2 Pilot Mod.
If I may, you are making a misinterpretation with the vacuum measuring device.
Hey 50sKid Thank you very much!!!!! You ROCK man!!!!! You should know at least 1 person in this world is your fan bruh!!!! I was waiting for you video and going to do vacuum line from intake to valve to incrase vacuum. Thank you!!!! Thank you!!! you did lab for many peoples.
Thanks so much, man. I'm glad to have you as a subscriber!
@50sKid Some questions.
it is mandatory to install check valve on return line or it should be bypassed? How you think by increasing vacuum is it possible that lubrication of the cylinders will decrease?
Thank you! by the way I am subscriber from your first video :)))
Haha, that's awesome. I haven't tried this exact mod without the check valve. I would say that given the size of that small vacuum line, it's probably not enough air flow to suck up the oil so you can probably get away with it. But if you get blue smoke out of your tail pipe, get a check valve.
Hi Mr 50skid,am here in Los angels close to you. I did exactly like you did but it has so much vacuum. I almost can't open oil caps.is that's Ok?
Yes that's the idea
Hi Jason! Do you think doing the o2 pilot mod without overhauling the ccv first, could cause rod knock? My car died shortly after doing this mod, producing a knocking noise. I got it started on a downhill section of road and it was knocking quite badly. Some mayo on oil cap and inside of valve cover that wasn't there literally 100 km before doing this - I overhauled the vanos shortly before doing the o2 pilot mod.
Big thank you!
But I'd like to ask since I have a manual, will this mod affect my idle?
Cause it would be a pain in the **** if controlling the clutch at idle gets even more difficult.
No it won't. All modern cars have an idle air control valve that takes care of it automatically.
The idle control valve on my E46 is causing me some headache. By the way all your videos and tips on the 325i apply to the 320i too, which was only available in Europe.
Great video! Does increasing the vacuum have a adverse affect on engine performance?
I have actually read that increased vacuum can actually increase performance because the piston rings seal better!
Yeah I honestly do not see any difference. I think the people saying that are just wishing it was true, lol. But that's me, I could be wrong!
Haha that's what I was thinking as well! :P I'm hopeful but doubt I'll see anything!
50s, isn't the stock vaccum around 16 mbar (0.5 inHg)?
18 inHg seems like a lot of pressure for the seals to last, it's 0.4 bar of absolute pressure inside the Crankcase.
This is a great video - I’m going to try and install this at the same time as changing the oil filter housing gasket, with the help from another great video of yours.
I’m in the UK and have a 320Ci - my question is regarding this new hose. If we’re using the smaller vacuum port, can we use one size hose? Is it the same sized port on each size?
Thanks!
Hi, did you do the o2 pilot mod? I'm also in the UK and want to try it, but not sure if its ok to do in our climate?
Thanks, Joe.
I am about to do this mod and will use a single 3.5 ID hose - the rubber plug on the oil separator is exactly the same part number as the one on the manifold!
@@joefowler9600 The UK doesn't get cold enough for the "cold weather" CCV, but short trips can cause gunk to build up; the 02 pilot mod _should_ reduce that.
@@JMUDoc hi, thanks for the reply.
Just to let you know, i installed the o2 pilot earlier this year and it has dramatically reduced oil consumption.
@@joefowler9600 Did you use the check valve? Jason reckons it's not worth it because they fail and have to be replaced...
I did something similar on my e46, works as described. #50sKid, what do you think about doing this mod on other engines with low tension rings and oil consumption? Coyote 5.0 for example.
I have a 2004 Bmw 325xi, when the car is in drive and stopped the car starts to vibrate. Once I accelerate the vibration stops. There's a 140,000 miles on the car. I took it to Bmw. Motor mounts and transmission mounts were replaced. They say it's just a old car. Can you please give me your suggestion.
Vibration could be coming from the power steering pump or the water pump or even the engine oil pump. It could also be coming from the transmission oil pump. Basically any of the pumps.
Torque converter,go get it scanned at autozone for free. Start there
So I done the O2 pilot mod and I see no difference. Car still smokes like a trooper randomly.
When the car stays overnight, cold start there is no smoke at all. So I dnt knw wht this car is doing cause that tells me it's not valvestem seals.
Thanks Jason, I completed the 02Pilot Mod on a 2005 325xi with 229k in Massachusetts. At 7:30 you mention 2 of the 3 rear ports are capped off but the 325xi's here only cap the large port. The two smaller ports are connected in this manner..
4mm port upper > vacuum hose > pierburg check valve (black/white) > vacuum hose > check valve near secondary air pump
4mm port lower > vacuum hose > vacuum tank (black)
At first the vehicle idled and drove great, but when slowing down to take a off ramps the vehicle idles low, and when stopping the vehicle stalls unless I pump the gas.
Are these vehicles vacuum systems not properly routed? And if so, should 1 of the 2 smaller ports be capped?
Try removing and cleaning your idle air control valve. You want to make sure it rattles when you shake it. I recently had to clean mine again. Sprayed some wd-40 inside to lube it up and get it freed.
After inspecting what I did I forgot to connect the lower most electrical plug to the wire harness box. A note for other viewers, be certain to re-attach all connectors including the lowest most plug, the camshaft position sensor 12147539165.
Hi I have a question. I loved your video with the whiteboard showing how either the O2 pilot mod or your new pcv valve/catch can setup generates vacuum on the crankcase in order to "reseal" the oil rings. Makes sense how this would stop oil burning completely. But now that you have constant vacuum on the crankcase, have you noticed oil level dropping by burning oil through the CCV system rather than through the piston rings? Perhaps it just burns less? This engine doesn't appear to have a breather hose for air crossflow through the crankcase - maybe that's why it burns less oil? Really curious about what you think.
No you don't get increased oil consumption through the CCV system because, in the case of the catch can setup, there is a PCV valve in the system, and with the 02Pilot mod, we're only using a 1/8" vacuum line to apply a small amount of vacuum. It's not enough to suck any oil.
OK I see. So any atomized oil droplets will not be enough to affect the oil level?
With the 02Pilot mod? No you still have the oil separator in the system. With the catch can, the can itself acts as the oil separator.
Oh right, I see. With the 02Pilot mod, the crankcase vapors still have to go through the oil separator, so you're good. But what have you noticed with your catch can setup? Quite a bit of oil in the can? Or pretty moderate?
Didn't keep the catch can very long--I moved on to the 02Pilot mod and then I rebuilt my engine.
I don't have that port on the ccv, 04 325xi..... *UPDATE* So I have the "cold weather" ccv version, so it's like wrapped in a protective shroud, so I couldn't see the vacuum nipple. So I took long needle nose pliers and ripped/tore a hole in the shroud around the ccv after I realized why I wasn't seeing the vacuum port. Then it was right there. I only had to take off the airbox and half of the throttle body elbow. I used 3/16id vacuum hose on the ccv port, and 1/4id vacuum hose on the back of the intake, both from Napa. And I did slide the hoses into each other aswell.