N54 Boost Solenoid Valve DIY - BMW E90 335i E60 535i E82 135i

[@deandeily9489]

You have had this car for a week and you are already making tutorial videos! 50sKid I hope you know how truly appreciated you are in the BMW community. First e46 - now e90. Thank you so much for all that you do.

[@osamatanweer893]

I love it too because I got an e46 325xi in 2018 and his videos helped me service that car. And then May 7th 2021 my 335i gets delivered and lo and behold to my excitement he gets one too 🥳🥳

[@danielvarga6021]

don't own an N54, but I´ll still watch! hahah.. great channel

[@raymccurry5556]

Same

[@lp2565]

Same here.

[@S3tekh]

Yep, i still have a e60 with a m54, i remember how much of a fan boi i became watching the 50skid, no regrets i love my m54b25

[@bpsehgghhhh6684]

be thankful you don’t. any NA bim engine is better than this pile of tuner-junky crap. also the N55 is just a much better design than this. EVERY single n54 owner I know or know of doesn’t have shit in the bank for a reason😂😂😂

[@danielvarga6021]

@@bpsehgghhhh6684 I guess I would go rather for an N52 330i, but still I had many difficulties with my M54b25 in an e46.. depends a lot on previous owners

[@honeytank9795]

The white bandana...essential gear for BMW repair sessions :-)

[@amirsalem8715]

hey 50skid I wanted to thank you for all your videos I recently rebuilt my e46s engine and without your amazing videos I wouldn't know what to do keep up the amazing work and I hope one day you reach 1 mil.

[@TomasLineros]

I love when there's a car problem and it's not so hard to repair, especially if there’s a DIY video from you. I’m really excited about more videos coming. Thanks 50sKid! 🔧💯

[@brendenns3926]

Great video!!!! I dont own an e90, but still watch these videos cause i love watching people wrench on bmw's!

[@clausfkvist]

Great to see you back 👍

[@e46m54nissansr20937]

Thank 50s kid i removed the coolant tank and canisters and had easy access to the solenoids. I had an overboost limp mode constantly and OMG does it pull on stage 1+ 91. Ive had this problem for months the boost and torque is consistent WOW

[@MrTdy64]

I’m glad to see you with the 335, I’ve learned a ton from watching your E46 videos. Thank you! I’ve had a number of E46’s. They make great first cars for my kids. Now my wife drives a 535 and I had a second one for a few months. I noticed your video wanted to share this trick I found. The boost solenoid should hold vacuum when it is working properly. I used a harbor freight brake bleeding tool to draw a vacuum on the input side. The worn out solenoid may not hold vacuum very well. The new one will vacuum. Recently I had two 535XI’s and the rear solenoids would not hold any vacuum, the fronts would drop pretty quickly, but I could at least somewhat draw some vacuum. If you still have your old solenoids, give it a try. Both my 535’s would exhibit the 30FF low boost code. After replacing both solenoids I no longer got the 30FF even under full throttle pulls.

[@Editingbytoxic]

glad your back, saved me hours and money, also want to upgrade to a 335, my 323ci is starting to feel slow after driving it for 3 years, Respect from Sweden.

[@50sKid]

Tell me about it, my 330i feels quite slow now. I want to swap an N54 into it -- wish that were possible lol.

[@straight6petrol]

With an N52 engine in mine I'm not sure what I'm doing here... I guess it's just that lore of the 50s kid. Great content and so glad you're back!

[@jwd1112]

50sKid, your videos are easy to follow because you explain everything in detail. Good job! I’ll test my boost solenoids the same way you did. Thanks!

[@donaldbarron7916]

Awesome show !! I did these on my Wife's 2010 535i. I wasn't getting a code or loss of power . I was getting a humming noise. I replaced both of them.

[@ToastRunnerHere]

So happy to see you back! Learnt a lot from your E46 series and it helped me with my E46 project. Have a E90 N54 - love you started a new series!

[@derekkchung]

Thanks for the theory of operation and your troubleshooting step. NOT MANY OTHER VIDEOS DO THAT. THIS IS WHY YOU ARE THE BEST. One thing I learned is that when the CEL is red, stop engine, why?

[@50sKid]

That's what the manual says!

[@stefanodone8218]

Hi my friend , good work thaks for this video very important Good luck Greeting from Italy 🇮🇹🇺🇸 I love U.S.A

[@marcsaiber6684]

Thanks for your diligence in all the work you share

[@I_Learned_a_Thing]

Thank you, finally solved my overboosting issue (30FE + 3100).

[@dinhvanpham8102]

Hi, thank you very much for an excellent video. I have to do the same job on my BMW 525D Xdrive N47 engine. Now and then I loose power. I have already replaced 1 Boost solenoid and 1 Charger pressure. My next job is to replace the last boost and Charger. Very much appreciated video. It helps me a lot.

[@watchfreaxx]

Great video. Thanks for giving some love to this car. I own e91 and love it

[@codyfield6859]

I love your passion and attention to detail and the fact that a non OEM bmw fastener bothered you. Keep doing what you're doing sir. Looking forward to future videos with your new project car!! 😁👍

[@getitdonegarage]

Excellent man u make patience essential to working g on these machines

[@dinhvanpham8102]

This is the best and excellent video about Boost solenoid Valve. I have the same boost problem on my BMW, I have bought the parts and i am going to replace m boost solenoids today. Thank you very much for your sharing. Keep on he good work.:-))

[@Hennysgarage]

Love the paper trick. That will save my ass in the future. Thanks 50’s kid!! Btw. I found your channel when you had the e46 and you were solving my problems, then I got an n54 and you get one too!!

[@mononi19771]

Thanks for all your videos I have a 2001 325i I have save so much money looking at your videos thanks you brother

[@jesseplascencia4114]

Thank you for the information and video. I think that's what's going on with my BMW. I'll have to test the boost solenoid valves like you did first.

[@michaelblacktree]

great video! 👍

[@alexayala3660]

I have the exact same codes and issues with my 335. After searching for some info on this I stumbled upon your video. Thanks for the informative and detailed DYI video. Going to harbor freight now to double check but I’ll order these boost solenoids being that my car has 150k miles. Im sure that is my problem.

[@anasuddin5684]

Have you resolved this issue?

[@MarioDallaRiva]

Bravo, Jason! 👏🏻 I agree...that non BMW fastener would bother me. In fact, I noticed it right away before you even mentioned it 😝 Who knew you were a golfer?? 😎 I must get me that Milwaukee. I recently bought their underhood M12 light and it's great. Also nice when doing interior work. I'll check out your parts sponsor there.

[@50sKid]

a golfer?

[@brandoncalkins2512]

Will this indeed cause a constant buzzing noise from my motor? It even does it for a second after I shut the engine off. I have a 2008 bmw 535i. I’ve never had engine light come on though

[@seanmarrero3461]

Looking forward to all the things you do to the 335i. In the process of a motor swap

[@oldjarhead1125]

And another great DIY. thanks...keep posting

[@Megurin88]

lmao i have the same problem on freeway pull after i repaired my wastegate rattle, and at first it really was my wastegate adjusted improperly, so i dropped the frame and readjusted, the code did not came up until i took it to race track, and canyon run, so i dropped the subframe again just to adjust it, now code never came up but boost is no longer matching the boost target. im starting to think that my BOV is not being responsive enough. lol, anyway thank you! now im on my way to change my boost solenoid.=D

[@I_Learned_a_Thing]

Did it work?

[@Megurin88]

@@I_Learned_a_Thing it sure did

[@itsKeaze]

Legend

[@josefasacothelordofbeats7623]

Life saver thank for the troubleshooting. No wonder 💭 I can’t boost

[@MarkRawling]

Cool vid. They were both leaking by the look of it, #1 wasn't exactly hitting zero either. Evidence that these things are eventually going to leak.

[@50sKid]

Yep, I noticed that when editing. It's not that they were leaking though, they were sticking closed. Bank 2 wasn't dumping the vacuum and going to 0 inHg at all and bank 1 was only going to -5 inHg.

[@lp2565]

Great Video, as always! Thanks for sharing!

[@richardjohnson9702]

Back with a vengeance... Thnx 50....

[@Streamlined955]

I would’ve liked to have seen some video of the 335i afterwards running sweet and smooth.

[@50sKid]

You mean like just a shot of the engine running or me driving the car around?

[@shrkys4]

Much mahalo! great video!

[@joebutlersnr7017]

I had a boost problem on my N54, I have an aluminium charge pipe with a bov and a Cobb access port tune , the boost would only go up to 16 psi and then drop like a stone with the engine light on and a 30ff fault code on my protool app , great I thought this could cost me anywhere between £2 and £2.000 + , as it was it cost nothing and was an easy fix but not such an easy reason to track , the T map sensor had popped out slightly due to the retaining bolts partially stripping due to being to short , fitted longer one's that I had lying about and now I've seen 19 psi with no problems .

[@ElRayDelRio]

Same issue...Ive been chasing this boost leak for mobths now 😅 My bolts backed out over the years 😢 unfortunately im now using a different set of bolts but still throw the dreaded 30ff. I had also replaced my 50mm bov v-band clamp as mine had began leaking and my hotside charge pipe from turbo to innercooler and its helped but now I believe my boost solenoids are no good. Do you happen to remember which size bolts you used for the tmap sensor? Thanks

[@zhuque2262]

Aye guru. I got a 2002 x5 that won’t let me scan the obd port. Checked fuses. Fuasable links. Changed batteries with 2 other charged ones... even had my jumper on there too with extra juice.. I just get low voltage can scan car... I checked the dme and tcs. Car is in motor and trans fail safe prog.

[@50sKid]

There is a bad module on the network that is preventing communication. This same thing is happening on my E46. The way you figure it out is to dig into wiring diagrams and figure out which modules are connected together in the K or D can lines and then unplug them one by one until things start working again. In my case, it was the steering angle sensor.

[@montplayz8434]

Can the bad boost solenoids also throw a 30ff code? Instead of turbocharger pressure too high 30ff is too low. I'm having similar issues but no half light just misfires on cylinder 5 and 6

[@richarddavis6291]

Great video really helped thank you

[@alonzoacosta883]

that milwaukee though 👀👀

[@50sKid]

Yeah the high-speed. It's awesome!

[@mrdude3540]

Hey bud. Have you done a video on replacing the air intake manifold? Mine craked open

[@50sKid]

i haven't, not really a common problem. But I'm sure I will be removing that sucker real soon to do some walnut blasting on the intake valves.

[@mrdude3540]

@@50sKid thanks bud. 👍

[@lvlupfcty8500]

If anyone is wondering how these work. Stock boost converter solenoid is normally open. Vacuum is pulling through it and holding the wastegate closed, ECU sends ground to solenoid when desired boost pressure reached, solenoid closes, removing vacuum from wastegate and the wastegate spring opens, bypassing exhaust flow through wastegate. They fail by either leak or valve getting stuck open/closed from what I've encountered.

[@singhsarabjit]

Hello, I am doing bench test by giving 12v to Solenoid and it is not clicking, does that mean that it is bad? Thanks G

[@igralec84]

Great video, waiting for my solenoids to arrive, went on a first trackday and sure enough didn't have the right power on the straights and got 30FE, 30FF and 3100 with a half check engine light. Driving home at night, the car pulled better in 6th than it did in 3rd and 4th at the track, strange... hoping it's the solenoids and maybe the hoses, will replace them because it can't hurt to replace 13yo parts :)

[@titolozada2510]

did the solenoids fix your problem?

[@igralec84]

@@titolozada2510 no, actually made it worse and threw the codes on the first lap on track, so it's either the wastegates or it was the MHD v9 map. Haven't done any trackdays since then, but haven't gotten the codes on the road either.

[@rocsocom3166]

MHD show a low boost code 30FF. I did a smoke test for vacuum leak couldn't find any. going try replacing Turbocharger Boost Solenoid Valve. Remove top cover plenty room to work on solenoids. no need to remove the canister

[@jdeanmj]

Do you have a video changing the turbos and also a video on roof rattling on a 335i e93 hardtop convertible?

[@FixItYerself]

👌

[@AssAss1n03]

Hey got 04 e46 and I only get sound out of the driver side speakers what is the issue is it the amp

[@BmwMe-uh9sy]

wat about the transmission code wen u gonna fix that nd btw the bolts that hold the expansion tank r 10mm bolts same on my n55 they r not torx fasteners but still oe hardware

[@50sKid]

It's coming. I just finished filming it tonight.

[@AlexanderLopez-bk9iv]

Will this test work if you have a bov blowing air out to the atmosphere?

[@jonhardy7131]

Is it ok if the boost solenoid is wiggling? The round part that has the cut out for the driver to fit on to the nut.

[@florimbaj]

Great video man,I been watching your videos for so long.I love bmw and I always have one but I never have a good bmw scanner help me find a adorable bmw scanner i need one thanks.!

[@50sKid]

Look into how to setup ISTA, do some research. I can't tell you where to get it because it's pirated software but it's out there.

[@Steve-xo2vl]

Hey 50sKid, great to see you back! I have a 30FF code(charge pressure low), would changing solenoids also fix the problem?

[@50sKid]

No, your turbo wastegates are likely worn out.

[@Steve-xo2vl]

@@50sKid hey thanks for you reply, luckily it was only a vacuum line. I didn't find it straight away as it was one of the lines that comes off the brake booster under the manifold cover.

[@suj1945]

What's the idea with people referring to these engines as having 2 banks ?

[@Ls3juju]

Is that whine normal ????!!! I’m having that

[@dilettanteofspam4379]

Hi there. I know this doesn’t pertain to this video but I’m posting it here in the hopes that it’s actually seen. Thanks for all the terrific videos. I’m in the market for an m56 valve cover. Do you still sell these? I’d like to buy from you if possible as a kind of thanks for all the great information. Car is a 04 330i looking for a ccv fix for cold weather.

[@50sKid]

Email me

[@reglockyer9234]

Ive always assumed that my wastegates are worn due to a tinny rattle that sounds like an exhaust heatshield rattle.After about a minute the rattle disappears as the revs drop to normal after initial warm up.If i do this before driving, the car is fine.If i drive off before waiting , then within a few yards that yellow half engine power light comes on. I then have to stop, turn off, start engine again and all is fine. Ive always imagined that the vacuum pots lose their vacuum when parked up for over 5 hours.Maybe its these solenoids ?

[@50sKid]

No the bushings in the turbo are worn out. I posted a video on it last week

[@ademc8872]

So a boost solenoid can cause a overboost issue? I thought they were mainly responsible for boost too low situations?

[@50sKid]

Nope other way around. Boost too low is caused by worn waste gate bushing.

[@ademc8872]

@@50sKid oh i see. Big thank you for the excellent videos!

[@jdeanmj]

What’s the part number?

[@mltonganuelas2108]

Please help. My Snap-on scanner threw 3100 and it said Boost pressure control, switch off. Is this similar to yours stating deactivation? I'm thinking so because different brand scanners word things differently maybe?

[@robertmills4268]

Which scanner do you use

[@50sKid]

i have a launch pro mini

[@toddcagle4245]

Did you rid of your e46 330?

[@50sKid]

nope!

[@ProperRepair]

I cringe every time I see an "aftermarket" bolt. Not so much because it's not a BMW bolt, just that it's different from the other(s).

[@hetormolina1785]

I think I’ll stay with my e46 ahaha a lot more simpler to handle

[@lp2565]

Same here.

[@imagerycreated203]

I have no codes

[@dardarwin01]

FCP Guys lifetime warranty

[@fastboatster]

So the car isn’t so bad, and for the money you probably paid for it it’s a freaking performance bargain

[@phoenixlounge7656]

Remember! They don't always throw codes, the performance can still be terrible and still have no codes!

[@markt9438]

N55 do not n have these issues

[@phoenixlounge7656]

That is correct. They are electric

[@OgXKush1000]

Get a Bmw e39 540 and make some videos !

[@50sKid]

Ughhh... not a fan of BMW V8 engines lol

[@atipsuttisaragara868]

make it into a drift car

[@TheTruelakersfan]

You don’t remember Kobe making it his mission to never let the nuggets win a playoff game??? Lakers have knocked them out for decades. Currently the few years lebron has knocked them out of they hate the lakers

[@JuanTorres-pq8fd]

Bro said bimmer wrong