BMW E46 DISA VALVE - The WHAT, the HOW, and the WHY it WORKS & FAILS [2021]

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THE BMW DISA VALVE on your E46 with the M54 engine plays an important role in creating performance and fuel economy. But what's its purpose in the intake system? How does it work? And how does it FAIL?
If you have strange noises in and around the intake manifold, and a lack of high-end performance, the DISA Valve could be the cause. To give you an understanding I give you all the answers to better understand the DISA Valve and fix the problem.
⭐️ Error Codes possibly associated with a Faulty DISA
P1083; P1085 - Lean Condition
P1090; P1092 - Front Oxygen Sensor Lean
P1087; P1089 - Oxygen Sensor Slow Response
P0311; P0316 - Cylinder Misfire
P0174 - System Too Lean
➡️ NEW Replacement DISA Valve from ECS Tuning (this is an Affiliate Link).
click.linksynergy.com/deeplin...
▶️ DISA VALVE Upgrade Kits
www.germanautosolutions.com
www.x8r.co.uk
(These are not affiliate links).
😎 Thanks for watching, and I look forward to seeing you in my next video.

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29 июн 2024

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Комментарии : 106

@hyunjodye5283 2 года назад

Man please don’t stop making videos, you’re like the bob ross of bmw informational videos

@chadriddle3517 2 года назад

Good description

@waynev5097 2 года назад

Great explanation - you have a talent of explaining in a very easy to understand manner.

@magmagmag9 Год назад

Goodness me. This is literally one of the best RU-vid channels for BMW enthusiasts. One video and I'm hooked. Thank you sir. Keep it pushing.

@DEATHDRONE5000 2 года назад

Best explanation on the DISA valves ever. This obviously applies to the n52 as well. But hopefully you can include a tear down of the n52 disa valve eventually

@dietrichschilberg3247 2 года назад

You sir are quite literally my favorite channel to watch on RU-vid. My god damn hero as far as my car is concerned. Quite frankly you have not only aided in the improvement of my car, but, the preventing of necessary maintenance to it. Thank you!

@tommaillard1415 10 месяцев назад

THANK YOU SO MUCH, thanks to you I think I figured out my issue which none of my other mechanics could do

@scenicgarage6107 2 года назад

Another great video full of useful information! Great to watch content from someone so local too. I might add that I get a lot of my parts from clickable automotive who are in Australia and specialise in oem bmw parts!!!

@SlowE46... 2 года назад

Thanks you so much man I definitely need to do this to my e46 soon 🤙🏽❤️❤️❤️❤️

@garybeale9019 11 месяцев назад

Great video! Very well explained.

@ISTVANX Год назад

Thank you soo much great detail and very good explanation! I’m very grateful!

@alfredatlhopheng223 2 года назад

Thank you so much. Great lesson

@L7Fx 6 месяцев назад

I wish you went over the diaphragm membrane in the vacuum pot. You can test it by covering the little hole on the side and seeing if the flap stays in position when it's closed (or open??) Removing the cover is a pain in the ass and cost me at least 3 hours of my time, but it is serviceable with a 15 dollar part

@mukhtarp9218 2 года назад

Ur hands are gnarly mate. Throw a shrimp on the barbie. Good work matey

@aubreyj.tennant1123 2 года назад

Dude, I’ve been looking (over the last 9 months) for an expert explanation of the disa. My e46 was gutless at low and high rpm. Otherwise in ran beautifully. No rattling. I suspected the Disa. I bought a repair kit. Thanks for this detailed vid! 👍

@Ezra-qd7nv 2 года назад

How did you go? Did it fix the issue?

@johncoss5604 2 года назад

Great advice great illustration.

@Sixty4motorsport 2 года назад

Thank you! Cheers!

@jackpayton5065 2 месяца назад

Best explanation ever

@corder077 8 месяцев назад

Thanks for the video

@1980albatros 2 месяца назад

Thank you🙏🙏 here on 05/01/2024 and your videos are sooo much apreciated.

@miroslavprochazka7838 14 часов назад

Thank you for usefull video sir.

@Greaseman762 5 месяцев назад

this video kept me from going with the m50 intake manifold swap

@leeghany5163 2 года назад

Thank you!!

@Mattispottiger 2 года назад

Any updates on the VF Engineering rig? Would love to see a “final impressions”. Here in the US I can find a 330 salvage with some ease, so i might just swap my 325i for that to start. Interested to see how you feel. Like you said on your maintenance videos and you “do not mod”…This is a long term car for me. Love the E46 family and the problem solving/platform benefits.

@gvergel74 2 года назад

Thank you!!!!

@dazzamac70 2 года назад

Another great vid Michael!!!👍 Maybe you should start wearing some gloves to help protect those digits!✋🤚

@Sixty4motorsport 2 года назад

I've noticed these injuries come in lots of 3's. wonder what the next one is?😁

@HoustonALEE713 2 месяца назад

MR.... I LIKE YOUR STYLE

@thefeydakin 2 года назад

I get the bank 1/2 running lean code occasionally and mpg has been bad (200k mile E46). Haven’t noticed strong rattling noise but now that I watch this I’m convinced it’s DISA? Would you recommend just replacing entire thing or try rebuild kit knowing mileage (note I bought this from a friend for my sons first car so don’t know when he replaced it but I’m betting not since 100k). Great videos!!

@DankUraniumYT 4 месяца назад

I went ahead and modified my Disa valve 😊😊😊

@nickgrove6946 2 года назад

love your e46! what wheels do you run?

@LochyP 2 года назад

Note that the DISA O-ring is a very common gasket for vacuum leaks!

@dRew-something 2 года назад

Great explanation. I bought a disa valve upgrade kit from x8r..they told me to not take the o ring off but place the one supplied on.

@Sixty4motorsport 2 года назад

Thanks for the info

@Paris.Kalachnikov 2 года назад

I've just now put anX8R kit in my 530 with the thinner black O ring going at the base of the Disa as their video showed. Perfect with a strong induction sound from the Mishimoto intake boot.

@dRew-something 2 года назад

Thanks for your reply and help,I still haven't done mine yet but will do soon👍

@Volks2462 Год назад

Is there an aftermarket brand Disa valve that is worth buying or is it one of those things that need to be OE ?

@erwa2139 2 года назад

That's it!! We have found Geddy Lee's brother!!

@LochyP 2 года назад

Been a while mate, hope you're doing alright!

@R34p3r15 2 года назад

Great video!!!👍🏼 I have been watching the channel for a while now and been doing the mods which you have recommended except the supercharger :p, although, i have been getting good performance, fuel economy has been killing me. Can you suggest some ways to increase the fuel economy of an m54 engine??

@Sixty4motorsport 2 года назад

Okay, great suggestion. I'll look into it.🙄

@R34p3r15 2 года назад

@@Sixty4motorsport Thank you!! Looking forward to it:)

@pikapika9473 Год назад

Thanks

@wesseyjackson3269 2 года назад

Hello I have an important question, if the disa valve is not plugg in can it make your car misfire?? Urgent answer please

@AtTheHandle 11 месяцев назад

6:50 that part is sucking in air crazy into my DISA valve

@Bitello330 2 года назад

Show! DISA improves torque at low and medium revs, favoring performance and economy. Use the aluminum replacement kit and you'll escape the death pin. Success!

@Sixty4motorsport 2 года назад

Thanks for the info!

@mateuszbienio8980 2 года назад

I have an important question how do i change my ccv valve to custom or make it like m50 engine had so much less problems with this setting ?? My english sucks i know

@isrealperez9069 2 года назад

My fail at the diagram air was leaking it made a needed noise replaced it working great

@Sixty4motorsport 2 года назад

Thanks for sharing

@NikitaAnnenkov 2 года назад

I just wanna add something: my DISA was rattling cause it was old, but when I replaced it the new one rattled as well. Turns out it was bad engine mounts and intake side was sagging and when replaced those mounts all noise and vibration disappeared.

@Sixty4motorsport 2 года назад

Often the case. Think you've got the problem sorted but.... At least you don't have a rattle anymore!👍

@chrislim7976 2 года назад

Replacing engine mounts is not a minor job. Would of preferred disa valve.

@darkoz1692 Год назад

Replacing the engine and transmission mounts is the best piece of maintenance I've done on my E46, the car now has zero vibration and feels like a new car.

@mule666 Год назад

@@chrislim7976 it's easy af what are you mumbelin about

@eurocam. Год назад

Funny how he said my disa valve was rattling but it wasnt even the disa valve rattling so then why would you even say it was rattling it wasnt you just THOUGHT it was

@juliuscaesar756 4 месяца назад

I’m going to be replacing my disa very soon I’ll come back with an update about it hopefully the rattling in the disa area stops

@dylanj9277 4 месяца назад

unplug it first to see if rattle stops that tells you disa is bad

@3ManFunny 9 месяцев назад

so my disa seems in good shape expect it doesn't move or close when i close it and put my thumb over the little hole and the flap just opens freely it doesn't hold like in other videos i apply +12/- on the terminal and it only makes clicking sound once doesn't move or close. should i replace the whole unit? i get very rought idle and lack of power.

@bbltd.3154 2 года назад

Frank!!!!!!!!! (Shameless)

@John-zr2zk 10 месяцев назад

I have a 04 330ci I have replaced the DISA 😂valve twice. Looks like I'm doing it again. I have a rattle. I've replaced disa 2x, MAF2x, purge, gas cap air idle control valve, plugs, coils, and fuel injectors. It's starts rough and only stays running if spray starting fluid in maf. When I stop it quits running. When I unplug the maf I have no throttle. But runs decent. I have a slew of codes that's why I've replaced what I have. I haven't disconnected the battery yet to reset the codes. Any ideas? Please help. I'm beginning to see a bong fire.

@taukwal8783 Год назад

I got a 2002 bmw e46 coupe Had the coq light come on Car was struggling to catch speed on take off but then regains it after time But now it doesn’t move forward Got rid of the coq light but car won’t still move forward got codes P1512 P0102 P0721 what could this be ? Help would be appreciated

@channyproduction4879 2 года назад

mine ist making noise but its throwing the code for bank 1 and bank 2 running lean and mpg its good at all

@VanquishMediaDE 2 года назад

I had a P1074 (p1071 is typically for 4-cyl engines and P1074 is for i6 or V-shaped engines) code on my scan tool, needless to say a 11 euro lower intake boot turned into a 300 euro repair (I had to replace my mass airflow censor), it was not that expensive of a repair but at least I no longer have a vakuum leak.

@sksuppressor756 2 года назад

Your maf cashed a vacuum leak?

@VanquishMediaDE 2 года назад

@@sksuppressor756 No the MAF sensor went out and the vacuum leak of the lower intake boot is what tripped the check engine light and gave me the P1074 code.

@f1fork 2 месяца назад

I was always taught that if you bleed on a job it's a job well done ;) .... badass :)

@jamiestanley8774 Год назад

Great info . I have a 525i n52b25 ,if noticed big diffrences in preassure when opening oil filler cap Plastic valve cover . Will this be a warning my disa needs either a kit or a new on .

@mikenite69 Месяц назад

I'm sure you sorted this already by now, but your problem sounds like the CCV system is failing and building crankcase pressure.

@todayigaming4141 2 года назад

@Sixty4motorsport Hi Michael, I have a problem with my steptronic not going into sports/manual mode. When it's in P I have to wiggle it to the left a little to get it into D and from there I cant push it left to get it into S/M1. Could you suggest a fix or how I can diagnose the problem? I'm not very techical when it comes to cars but I dont mind getting my hands dirty if I have to. Thanks!

@Sixty4motorsport 2 года назад

Modern auto trans can be a minefield. So many variables. Initially sounds like an issue with your shifter (you shouldn't have to 'wiggle things' to get them to work properly). But - it could also be an electronic problem. Investigate further around the shifter and inspect as many of the mechanisms that you can see to look for worn or loose bits. Also get it up on jack stands and further investigate under the car. If nothings obvious you will probably have to take it to a specialist.

@bobafittness1346 2 года назад

The DISA valve was the main reason I reverted my M50 manifold back to stock (B30). Lost low end torque with the M50 mani but gained high end. Not that good for a daily driver IMO.

@Sixty4motorsport 2 года назад

Interesting!🙄

@sksuppressor756 2 года назад

A piece of plastic fell off my disa into the manifold. I guess all I can do is hope that piece of plastic made it all the way through? Haha :( Was running on 4 cylinders and without MAF plugged in it only misfires over 30% load. Gonna hope the square cm of plastic missing from my old disa is the culprit of my vacuum leak (hoses look fine, upper intake boot is fine and I'm pretty sure lower also (kinda scared to take it off since putting the hose clamps back on and tightening is gonna be a bitch) besides when I taped everything up and blew as hard as I could, it seemed like everything was 100% sealed (slight slight leak out of my tape haha)

@juantrujillo5121 Год назад

Ur hella smart

@aubreyj.tennant1123 2 года назад

Dude, I’ve been looking (over the last 9 months) for an expert explanation of the disa. My e46 was gutless at low and high rpm. Otherwise it runs beautifully. No rattling. I suspected the Disa. I bought a repair kit. $49. USD but have not yet installed it. Do you you think I should replace the whole Disa instead or try the kit? Thanks for this excellent detailed vid! 👍

@IvanIvanov-oo1ti Год назад

hey ,what happened did you repair it or bought a new one ?

@aubreyj.tennant1123 Год назад

I did repair it. Didn’t solve my limp mode. My grandson inherited it. Took it to a BMW specialist shop and they could figure it out. He eventually had someone repair it but codes are still there. Waiting to get the details from him. Cheers!

@IvanIvanov-oo1ti Год назад

@@aubreyj.tennant1123 thank you

@YohooJesus 2 года назад

Funny mine broke recently and I had to get that fixed

@Sixty4motorsport 2 года назад

Great timing, right!😁

@thegreatstromboli 2 года назад

I have an issue with my 2001 e46 325ci... when I start the car any the engine is cold, it shakes, sounds like it wants to shut off but, after several seconds, it all smooths out and idles great. Also, from 0-60 it feels sluggish but from 60 on, it feels good. What do you think?

@Cavinxo 2 года назад

i got the same problem 😭🤝 also a loud whistle here n there

@wreckloosecibblecaboot 2 года назад

you possibly have a slow/failing leak in your ccv system. namely by your specific problem, its probably your bottom ccv reservoir hose that goes from your reservoir to your dip stick tube. might wanna start checking around in those areas. before its gets worse and unintentionally expensive.

@chadriddle3517 2 года назад

@@Cavinxo any answer for your issue

@FraxinusExelsior 2 года назад

The DISA does not end with the M54 and E46, its in the N52 and N53 engines as well, with the similar problems! Only on the later engines it seems that replacing them is alot more complex...

@sksuppressor756 2 года назад

Yeah for me it was unplug, unscrew 2 hex, pull out, put new one in, screw in 2 hex, plug new one in. Haha

@blackpassenger 2 года назад

oh man, thanks for that explanation. Ive often wondered what the disa does. a friend of mine here in japan, had his disa fail and the parts went inside the engine, causing catastrophic failure. is that rare? i have a 2000 320 with only 50k miles on the clock (84k kilometers). Should I just go ahead and changed the Disa? I just replaced the throttle body, ICV and MAF sensor. One more question: Im beginning to smell some gas in the engine compartment. The odor makes its way into the cabin when the fan is on, but it goes away as I drive and returns after I switch off the engine. Im thinking the culprit may be leaky injector seals? Am I on to something?

@chadriddle3517 2 года назад

Possibly, but my guess is your purge valve may be bad snd not opening when it should

@blackpassenger 2 года назад

@@chadriddle3517 Big thanks. Is the purge valve different from the schraeder valve?

@blackpassenger 2 года назад

Alright, did some research. if the purge valve were bad, would I not get a check engine light? The car runs perfectly otherwise.

@blackpassenger 2 года назад

@@chadriddle3517 you know, you were right. I replaced all the injectors with brand new ones, but the smell is still there. took to the bmw dealer here in kobe and they said its the purge valve. Ouch! 100,000 yen in new injectors, down the toilet. Not to mention the time. Took me damn near the whole day.

@chadriddle3517 2 года назад

@@blackpassenger wow , man I hate to hear that about the injectors . Yea those purge solenoids can be pesky to trouble shoot if you don’t know about them . Glad you got it fixed !!

@eastsideofthetracks8311 2 года назад

I replaced my disa valve about 10k miles ago and it failed again maybe I bought a cheap brand ?

@guy4469 Год назад

Hi my E38 728I is making such a screeming noise from this box at 189,000 miles its screeching loud now i know im going to ghange the hole unit 2 x tork screws is easier X8R company is near me so ill just buy the full unit £55 , deliverd .

@chadriddle3517 2 года назад

Have you got the e46 running with the vf super charger

@Sixty4motorsport 2 года назад

Sadly not yet....soooon hopefully!