Bmw N52 engine rough idle. Non return valves cleaned!!!

Update on the video! after a few days the rough idle was back and I've found out that my CCV valve is broken!
See that video here: • BMW N52 engine CCV Val...
Installing a stage 3 intake here: • Installing a 3-stage i...
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[@WarpDriveM]

Update on the video! after a few days the rough idle was back on cold start only and I've found out that my CCV valve was broken aswell! See that video here: kzbin.info/www/bejne/rWHWeHeVea1qecU Installing a stage 3 intake here: kzbin.info/www/bejne/iZLPh6aibZ2ebKc

[@lukeviewservice]

Pin this comment!

[@devergo999]

Same here,I've changed everything and still had the problem and almost give up...luckily I find this amazing video!Thx a lot! 😃

[@mosalah6495]

Mann god bless you I swear to god with out you I was ganne sell my car for 500$ because I been forcing this problem for along time ago but after I watched this I did everything you said and it worked I wish I can meet you and give you a big huge Mann no word can explain my happiness thank you so much

[@WarpDriveM]

Glad to help! Enjoy your car! 🚙👍

[@youngprince716]

Wow that's awesome!

[@kreshnikveliaj9741]

You’ll have to fly to Russia for the hug😀

[@daliborjurjevic1979]

mann i howe this problem on 530d rmp droping cliking

[@teedawg2386]

How does a rough idle sound?? Mine just keeps moving from 1500 to 1700 . Up and down up and down

[@soundseeker63]

I wonder how many people have spent $$$$s replacing the VANOS solenoids but never checking these... probably a lot! Makes me wonder if you even need to change the solenoids either... Maybe just remove and clean them like this and keep the engine oil good and clean, should avoid all the expensive VANOS issues BMW engines are so famous/infamous for! This video could save people a lot of money on unnecessary parts! Very well done for showing us this tip 👌

[@christianserrano9448]

My idle kept jumping up and down every single Red light and sometimes even turned off!!! I did EXACTLY this (my filter was DIRTY DIRTY DIRTY) and now it’s running brand new again!!! .. Thank you 🙏 god bless.

[@WarpDriveM]

Glad that this worked out for you!

Did this solve the issue bud? Or did you have to fix something else?

[@Blacktank]

Brooooo. You saved me thousands, the repair shop quoted me on some bullshit replacement.... these are the things ive done my self trying to solve the misfires, i replaced ignition coils,vanos solenoid,crank shaft sensor,new oil, new sparkplug, i even got the valve cover gasket replaced... and it sat there for 4 years... finally after watching this i did it my self this morning.. removing the front right wheel and removing the wheel well makes it a easier task! The bottom one had some particles, but the top nonreturn valve was filthy!!! I cant thank you enough!!!

[@RRSAutoempire]

What misfire problems were you having one bank or both ?

[@tech42long35]

Awesome tip, thank you from every N52 person. Short, to the point, filmed-well enjoyed it. Never saw Anything about these filter-things. Very cool.

[@rowen898]

Thats the most steady needle i have ever seen. Well done sir!

[@Boz1211111]

Wow, never seen steady rpm before?

[@rowen898]

Boz 2011 i have seen steady rpms. Thats pretty steady. I do live in canada where our engines run at -35c on winterized gas. Tough for an engine to be steady from cold.

[@garrydrakeford6677]

Thanks mate, changed my banks solinoids twice still had problems so I pulled out the non return valves and they were full of grit. Cleaned them and now got a smoothe running engine. Cheers.

[@scottkucinski4967]

Just bought my first bmw as always was worried they were money pits but after watching alot of KZbin videos for diy it looks manageable to maintain most things yourself

[@WarpDriveM]

Absolutely! And welcome to the club! Enjoy your car! 🚙👍

[@kingb7080]

I don't have any rough idle but am gonna clean mine as a precaution. Thanks buddy, first vid with such a great information.

[@CorbinWilliams]

Did you end up cleaning yours? I’m getting ready to do the same 2011 528i with the inline 6🤙🏽

[@kingb7080]

@@CorbinWilliams Yes I did and it actually worked. I also replaced spark plugs. But that bout it.

[@GPTSkills]

Thanks for covering this. My rough idle is not as severe as yours and does it momentarily on cold start ups. I already replaced my valve cover assembly, eccentric shaft sensor, ignition coils, spark plugs, vanos solenoids, cleaned MAF sensor, and changed oil to 5w30 instead of 5w40. I will be ordering new non return valves to replace them, regardless if they turn out to be clogged or not. Update: I replaced my non return valves today. I noticed both the motor and trans. were more smooth, so far. I only get the rough idle after leaving my car alone overnight, so I am gonna have to wait and check how the idle will be the next day after a cold start.

[@Sal3600]

Did you solve your rough idle?

[@streetfighter4dude]

I’m assuming your issue was to do with injectors

[@thecommenter7201]

Have you solved the cold start rough idle?

[@makeshiftpatriot]

One of the best videos I’ve seen for fixing rough idle issues.

[@johnmichaelkarma]

Excellent. Yes, yours is the first vid I have seen do to mention the filters. Great tip. Cleaning the filters regularly may prolong VANNOS life and just help entire system. great tip, thanks

[@design2drive]

This video got me subscribed.. i did my solenoids and it didnt solve my problem on my n52 e92, i would never knew about those filters man... thank you very much

[@alvernhem]

So did you fixed it with this then ?

[@design2drive]

@@alvernhem nope, i had to change one of four O2 sensors, had to diagnose it to know wich one was bad

[@alvernhem]

@@design2drive thanks but did you replaced the check valves or not ?

[@design2drive]

@@alvernhem nope, they were clean..

[@alvernhem]

@@design2drive Ok thanks

[@markbutler9291]

Rough idle can be caused by blocked engine crankcase breathers. The breather filters are built into the valve cover which will need to be renewed if this is the problem. When the engine is running remove the oil filler cap and remove it, if the cap is hard to remove or you hear any 'sucking' noise as you remove it then you have a breather problem.

[@doggboy6688]

Were is the oil filter cap 528i 2008

[@Crone85]

Isn't that only on N53? Believe N52 has the CCV attached to the inlet manifold

[@electrotx]

The CPV valve is built into the valve cover! Rock Auto LEAST EXPENSIVE by far!!

[@cohmah]

@@electrotx This ^

[@thecommenter7201]

I removed the oil filler cap but it is not sucking air at all.

[@genesmolko8113]

I tried and tried, I couldn't get any purchase on those valves. I don't know how you did it, hats off to you man.

[@dennispapadopoulos4920]

Thank you 💯💯💯 Great work I'm gonna try it on my N52 as soon as possible. You are the only one who shows it properly.

[@Vodafone16v]

Wow. So lucky to find this video!!! You described everything I have been struggling with! Same same problem here. Already replaced PCV, spark plugs, checked Ignition coils, cleaned and checked Vanos solenoids... Seems like one more thing to do is clean/replace these Vanos valves!!! Thank you so much for this video!!! Will be reporting soon!

[@thecommenter7201]

Hey. Do you have part number of PCV valve for N52 3.0L gas engine?

[@ryanneal1879]

After 6 months of chasing vanos codes and replacing parts for my rough idle I came across your video. Lo and behold I took them out cleaned them up, re installed and my car has the most stable and smooth idle! Was a little different for me as I have the n13 engine 116i. You are right there is not much if any information on these non return valves and how they affect the vanos system!!

[@danielzimnoch4365]

Sure nuff helped me out with the 08 528i. At first I had issues because I flipped the connections lol went back to look at the video and realized my mistake. Runs good. This is why I love KZbin, just search and u can find. Edit Saved a lot also on doing my own starter, that went out again. First time paid over 1200 bucks at a dealership. This time paid less than 200 for the part. Gained valuable knowledge about this car. Also did the coils, sparkplugs, cleaned the various filters and sensors and whola, runs like new.

[@jokerash]

If rough idle it's correlated with smoke when you floor it, check the O2 sensors, this was the culprit on my N52. Changed everything, vanos solenoids, coils, spark plugs, etc. Problem was Bank 1 pre-cat O2 sensor, NO check engine and NO fault codes...

[@WarpDriveM]

Good to know...thx for the info 👍

[@bastian9653]

Thank you from France!

[@rhollyday]

Change synthetic oil every 5000 miles to avoid this problem caused by burned paraffin sludge. Thanks for the good fix video! I never knew those filters were there.

[@deeyomoma1641]

Bro I’ve done everything to my car I’ve changed both vanos ,camshafts sensors ,spark plugs ,coils ,engine flush ,injectors ,intake gaskets ,ppc valve, breather ,hoses ,clean throttle body I watch a ton of vids going on a yr now trying to figure this problem out spent so much money . I going to try this out I hope it works . bless you bro . Wish me luck🤞🏾

[@WarpDriveM]

Don't forget to check the valve from the engine cover I have a video for that as well and remember to reset adaptations before you start the engine. Good luck

[@VictoriaBCProperties]

@deeyomoma did you find the problem?

[@deeyomoma1641]

Nope still the same

[@Wergrun]

I remember doing this to my car and thankfully they were pretty clean

[@davidviner4932]

I have Forte fuel system clean and full engine flush carried out at every service and I don't follow the BMW 20,000 mile intervals as shown on the dash count down, I stick to 13,000 miles maximum between services. No problems because of this and I cover 250 miles a day

[@prebird]

I literally change it every 3000 just cause I’m being extra cautious. Any idea when tranny fluid should be changed?

[@jahking9361]

The knowledge of the filters is very good.👏👏

[@ymedehaan2621]

Thanks man for sharing this video. I changed all the items you mentioned and have the same problem with rough idle. I am going to clean the filters and let you know the result.

[@alvernhem]

Results ?

[@JAMAEL89]

Thank you. I checked and they were completely clogged.

[@ArkadyRenko1]

The best explaination I have seen on youtube. Keep up the good work. I have theh same problem with my e92 325i N53. I will take care of it now.

[@peterivanov8474]

Good job Man, everything is straightforward to the point. Liked and Subscribed.

[@BLAZENYCBLACKOPS]

Great video, thanks a lot, going to remove and clean mine out after oil change.

[@jfazioli3941]

Best video ever I've been searching for what was making mine do the same and there was a loss of power I haven't done it yet but Im almost 100% sure this is it... thank you for this video.

[@bimmerhacks]

Update please....

[@jdunn938]

Thanks for the vid. I just bought an e60 and it has a wonky idle. Trying this today

[@partalien9862]

Great video, well done, really straight! I have an N52N in a 125i and want to do this job. Brilliant mate, spot on!!

[@mickkingston1450]

Change your spark plugs to the new 4 electrodes on them, BMW changed the spark plugs without telling customers to fix the idle problem The new plugs are available at BMW to replace the single electrode one.. The bmw & Mini dr on youtube has just given out the info recently..

[@WarpDriveM]

You don't have to believe everything from the net. Just think at this...how come the car was running normal without the new spark plugs before and now runs normal just with that spark plugs...kinda strange for me... but every one believes what they want...anyway my car idles perfect with normal spark plugs

[@chelsiefetherman3324]

This doesn’t fix the idle issue 🤦🏼‍♀️ cars were fine before..

[@geo26969]

Why didn’t I see this video before. Thanks. I. Well we had no idea. This issue has been hunting me for 1 yr driving me nuts

[@233kosta]

BMW: displays minor irregularity Owner: FIRE UP THE PARTS CANNON!

[@paulrichards6033]

Thank you! I have the same issue…

[@rickt8325]

Thanks for this video, I have been going crazy trying to figure out my rough idle and I've change literally everything but never seen anything about these filters, I feel this will finally do the trick, cant wait to perform this service, thanks again!

[@moizali1752]

let us know how it goes, I am having the same issue after replacing valve cover to fix the oil burning issue.

[@rickt8325]

I took them out and they were completely covered and clogged, I cleaned them to like new conditions and unfortunately it didnt correct the problem I'm having, my car keeps throwing a p1415 code and it surges really bad on cold starts almost like it's out of gas and when slowing down or coming to a stop light or stop sign it surges and rpms drops to the point of stalling and then shoot up to idle and stay there, I'm stumped, please help if you can, I live my car but I'm told the point of getting rid of it.

[@ibozgaming9928]

@@rickt8325 try lambda sensors! i have same problem with my n53b30a ! changed bank1 o2 and its better now so will change other 2 sensors and nox sensor too and see how it runs! if won't fix theres ony one more last step left for n53 and its injectors :(

[@jtaylor2563]

Dirty VANNOS is Common problem on N52 always use highest octane gas and helps with this issue.

[@jamiestanley8774]

Great info Great result Great video. Well done

[@adammahomed6167]

It’s a great educational video my friend.

[@brendamelendez8597]

Good job my brother!!!!!!!

[@BirdogEd]

Excellent! 😎👍

[@ariswall5378]

good explanation!

[@johnpetersen8116]

Didn't know about this one! Nice job!

[@A92_]

I cleaned the vanous cylinders today and still have a rough idle, I will try this tomorrow hopefully it works.

[@JAMAEL89]

2019 brought BMW X3 person sold at a high discount because he could not remove check engine. Saw your video and did exact what you posted and cleared it right up. Fix cost about 3.00. You are the best God bless you for posting.

[@powergaming357]

I have same issue i am gonna clean it thanks for sharing.

[@lanecastro5693]

Mine were not clogged but great video and well explained.

[@alexaquatica9219]

Thank you bro ,from Russia.

[@alansolomon2863]

Wow! Thank you, you're the mother F-in man, fact! 1💚

[@CorbinWilliams]

Nice car and great video, thank you!! From Los Angeles, CA

[@WarpDriveM]

Thanks for watching! Thx, I don't have the e90 anymore you can watch my other videos to see the cars that I've changed or what I worked on the E90. Greetings from Germany 🇩🇪😀

[@masriwahab3297]

Wow..like myself, after spending thousand of dollars on unnecessary parts for rough idle like solanoid, spark plugs, mass flow sensor etc etc...thsese 2 non return oil valves are the problems? Thanks man for the video. I should have saved money had i watched your video earlier...ha..ha.

[@AnthonyStromDesign]

Bad Mass air flow sensor also causes rough idle when cold start. That was my case.

[@krispytoast8804]

Same here

[@ArkadyRenko1]

Do you mean NOX sensors ?

[@krispytoast8804]

@@ArkadyRenko1 it was the maf sensor on my Intake that went bad, no check engine light but it started like shit and would sometimes stall going from 2nd to first I replaced my sensor and it runs like new

[@GPTSkills]

@@krispytoast8804 Thanks for the info. That will probably be my next step if the non return valves didn't do it for me.

[@iam_myster_e]

Is it normal for the car to idle but have a strong vibration? It’s not a rough idle per say but it’s like not as smooth as you’d expect

[@Carfanatic-kt8rr]

dude, I never ever heard in my life about vanos filters! eather you have more infos than regular people (hobby mechanics) or you just made it up! im going to google it!

[@WarpDriveM]

Haha...do so!

[@BrianSingh-i4z]

Good job

[@1911indi]

thank you sir! will try it

[@simplelangperorock]

Great. Good for you man. Hey, what size T-socket did you use? T-30?

[@ryanwilliams9207]

Fair play good work 👏

[@SalTheSneakerHead]

thank you! i just recently started seeing my car idle roughly and i was planning on overhauling my coils and spark plugs but i will try this first! How hard was it to remove the two filters?

[@sergioespinoza8345]

Thank you so much.

[@jamasi5]

This, is a great video man I appreciate you making putting the effort to it. I have a 07 bmw 328xi wogon and I wonder if my have the same filters?

[@WarpDriveM]

Yes the filters are the same.

[@jamasi5]

I’m still struggling to find the same filter as you though

[@pav1u]

WOW i am going to give this a try, i have the same symptoms plus a loss of power at low rpm and a little hesitation when i give throttle below like 2000rpm ...Thank you Sir, subscribed anyway

[@Justin-tu6nc]

Did you figure out the issue?

[@pav1u]

@@Justin-tu6nc Yes, it was a battery positive Fuse cable that went bad and sometimes car did this weird running and loss of power etc

[@davebasey9863]

Thank you Great information

[@austingfellers9112]

THANK YOU!!!

[@rakotondrasoahary5795]

Sir thank you so much for the video, i have exactly the same issue, we just cleaned the vanos intake and exhaust, but we have never seen this, What tools you use to clean this to avoid damage please ? Thanks again

[@johncastillo8609]

I had the same issue on my n62 v8 4.8. It was the Crankshaft Position Sensor

[@winstonmarcano564]

Hello dear.. was the same failure? How you fixed ?

[@luckybiby8968]

My E90 has this unstable idle problem, just in time to get the return valves clean, thanks!

[@medokadric630]

Yo thank u my guy I have the same problem

[@kevinyuni]

Good .vid.. useful..these filters if not cleaned ..will give you all kinds of rough idle.

[@bonkeydollocks1879]

I tried everything on mine and I mean everything, could not get rid of it.ifonly I could have known about these filters before I sold the car Maybe this was the answer

[@lukasp7406]

Was it?

[@bonkeydollocks1879]

@@lukasp7406 I will have to reword what I said I think. I tried everything I could without knowing about these filters. To be fair a bmw main dealer and two independent "specialists" didn't mention these either. One independent adjusted the gap on the finger between the motor and valvetronic cams and it cleared up a lot but was never as silky smooth as when I first got it. It was running like a swish watch one minute, I overtook a lorry on a dual carriageway, then pulled back in and I noticed the hesitation and fluffy Ness on idle and part throttle. Baffling. It was absolutely mint with leather interior and the fancy stereo in it (forgot the name) I had to sell it quick due to having a company car, I sold it to a chav family from liecster who after about two months wrote it off. Such a shame

[@RickCT2000]

nice job! thank you!

[@arisowski]

Have the same problem but car went into limp mode. Earlier it started 3 times and then died. Now im waiting for the mechanic diagnosis

[@flow_922]

Mine was acting like this but worse but it was just bad gas I think they change their octane around at the gas station it was running like it was on 85 octane went and put more gas in it now she runs perfect

[@evelinniko9449]

awsome video!

[@joehernandez7173]

Thanks bro 👍🏼

[@nicolas7183]

Thank you

[@fatihayar365]

Very good video Thank you :)

[@Data4664]

AWESOME!

[@kaosaefong2270]

Great

[@e60tube90]

And thanks ill check mine to

[@董旭冉]

Looks like the RPM & engine still shaking when cleaned them all in your video

[@xhulsF36]

i don’t know if i have the same problem i only had it happen once (this morning) i started my car and it was jumping a bit then stopped shortly and was steady at 600 rpm’s, do you think i have the same problem or was it just warming up?

[@DG-od4si]

nice video, thanks

[@wickedzayyy]

THIS IS EXACTLY WHAT MY BEAMER DOES ALONG WITH TERRIBLE THROTTLE RESPONSE

[@plexusgamer1105]

Is yours a Blue Water E90 328i, looks super nice

[@discordjulius6990]

Check your mass airflow sensor under your air box

[@nohandle846]

I have the same issue of rough idle making me go crazy tbh. Have an 002AFC code. Cleaned the maf, the map, the throttle body and changed the plugs and did an oil change and filter. May it be the return pipe of cvv? Thanks for the help (n46 engine on e92)

[@vladimirzzz979]

Thanks a lot for the effort, just one question what do you use to clean those?

[@WarpDriveM]

Thx. I've used brake parts cleaner and a razor blade

[@markgreywolf642]

Just subbed... this is very helpful.

[@GGGmodzs]

I cleaned mine a while ago it woks fine. It just to jump so bad when i was in a red light

[@odzy4915]

Bro, no one has ever showed this information about rough idle, i will try it. I have a question, why does a car hiccup in cold start and makes the car have high idle when turn on the ac or shit to drive/reverse? BMW E90 N52 No codes are showing, and no engine light as well. Also I've changed every gasket like how you did, new spark plugs, new compressor, new pcv

[@jonghyeonnam5519]

Thank you for the information. I have a quetion. What's the lenth of the extension? How long is total length? T40 + extension + wrench?

[@Onispeedsixer]

Ty you for this video. Question do you know if the n55 motor has those bolted filters

[@krookiemonster2673]

My 2007 x3 also chugs but has a really loud high pitcged squeal and does it all the time. Everything i found on it is that i need to replace the pcv vavle... which just so happens to supposedly be molded to the valve cover.. atleast from what ive been able to find out about it.. its creating a ton of suction and if i take oil fill cap off it stops squealing but will still chug just not as bad.. took it to bmw dealership and they said my valve cover is cracked.. didnt say where just that it would cost 2500 dollars.. there is no oil leaking tho. Which my dad a mechanic of u.s. domestic vehicle of 20+ yrs says there would be oil leaking out of a crack if there was one... there is some sensor on the top front of my engine that has had caulk rubbed all over the case and there was a bit of oil in the plug part of same sensor.. cant find what the sensor is to replace it tho.. for all i know that could be the thing i need to fix..

[@krookiemonster2673]

At 1:40 u almost pointed to the sensor im talking about.

[@contento73]

Thanks !!! : )

[@williamsanderson9751]

I got the rough idle on my E83 rite now and changed the plug and coils then the steering pump recently...thinking it’s still gonna give a rough idle when I go start it up thinking I need to clean or replace these filters along with the vanos and see if that is my problem as well these N52 motors are a big pain but when you get to changing parts you become familiar with everything in your vehicle good tips on the video thanks !! How long did the job take you to clean these 2 filters?

[@WarpDriveM]

You should be able to do this job in 20 min....

[@a.f.1587]

Wow i think you should fix your headlight too, they seem very foggy.

[@WarpDriveM]

I've already done it: kzbin.info/www/bejne/naW9d2x7pNiBmKs