BMW N20 Vacuum Pump & Boost Solenoid Replacement DIY (X3, X1, Z4, 328i, 528i, 320i & More!)
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- Опубликовано: 5 окт 2024
- ►This DIY addresses one of the easiest jobs you can do on the ever-popular N20 engine: the vacuum pump. On this particular DIY, we're using a 3-Series BMW F30, but it's also applicable to a handful of other vehicles listed in the description below.
Some of the signs you may need to replace your vacuum pump are if your car enters limp mode and displays a "Drivetrain Malfunction" Warning light. Also, if you're noticing a leak coming from your vacuum pump, or if your engine cover is full of oil, those could also be signs you need to replace your vacuum pump.
The N20 boost solenoid is also worth doing at the same time for earlier models. On the later models, the wastegate is controlled electronically, therefore you don't have to replace the solenoid. The vacuum pump itself and the associated gasket, however, are the exact same process between both models.
Shop the parts used in this video here:
Vacuum Pump: www.fcpeuro.co...
Vacuum Pump Seal: www.fcpeuro.co...
Boost Solenoid: www.fcpeuro.co...
Brakleen: www.fcpeuro.co...
This DIY is also applicable fo the following vehicles:
BMW 328i
2012 BMW 328i Vacuum Pump (F30, Up to 9/2012)
BMW 328i xDrive
2012 BMW 328i xDrive Vacuum Pump (F30, From 1/2012)
2013 BMW 328i xDrive Vacuum Pump (Up to 11/2012)
BMW 528i
2012 BMW 528i Vacuum Pump
2013 BMW 528i Vacuum Pump (Up to 7/2013)
2014 BMW 528i Vacuum Pump
2015 BMW 528i Vacuum Pump
2016 BMW 528i Vacuum Pump
BMW 528i xDrive
2012 BMW 528i xDrive Vacuum Pump
2013 BMW 528i xDrive Vacuum Pump
Up to 7/2013
2014 BMW 528i xDrive Vacuum Pump
2015 BMW 528i xDrive Vacuum Pump
2016 BMW 528i xDrive Vacuum Pump
BMW Z4
2012 BMW Z4 sDrive28i Vacuum Pump
2013 BMW Z4 sDrive28i Vacuum Pump
2014 BMW Z4 sDrive28i Vacuum Pump
2015 BMW Z4 sDrive28i Vacuum Pump
2016 BMW Z4 sDrive28i Vacuum Pump
BMW X1
2013 BMW X1 sDrive28i Vacuum Pump
2013 BMW X1 xDrive28i Vacuum Pump
2014 BMW X1 sDrive28i Vacuum Pump
2014 BMW X1 xDrive28i Vacuum Pump
2015 BMW X1 sDrive28i Vacuum Pump
2015 BMW X1 xDrive28i Vacuum Pump
BMW X3
2013 BMW X3 xDrive28i Vacuum Pump
2014 BMW X3 xDrive28i Vacuum Pump
2015 BMW X3 xDrive28i Vacuum Pump
2015 BMW X3 sDrive28i Vacuum Pump
2016 BMW X3 sDrive28i Vacuum Pump
2016 BMW X3 xDrive28i Vacuum Pump
2017 BMW X3 sDrive28i Vacuum Pump
2017 BMW X3 xDrive28i Vacuum Pump
BMW 320i
2013 BMW 320i Vacuum Pump (Up to 9/2020)
BMW 320i xDrive
2013 BMW 320i xDrive Vacuum Pump (Up to 9/2012)
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Get free parts from FCP Euro:
www.fcpeuro.co...
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Shop the vacuum pump here: www.fcpeuro.com/products/bmw-vacuum-pump-vaico-11667640279?
Did you install new seal? I think it was edited out of the video
Please do as many N20 videos as you can, these engines are everywhere!
We have more in the works! Stay tuned
We're working on it!
Thank you so much i can finally fix my car without ripping my arm off
@@fcpeuroI must say that you have done a very good informative video. Keep it up. Anyway, my N20 is already 144,000 km and recently it suddenly lost acceleration after pushing to 2300rpm. It suddenly decelerated. I think the remedy must be related to your video?
Thank you for everything. I didn’t know what was wrong with my car I’ve been bringing it to several mechanics and they’ve charged me and couldn’t figure the problem out. This is exactly what’s wrong with my car thank you.
What sort of symptoms were you having? I may have an issue with my F30 328i
I have the same issue rn. Replaced both 02 sensors, Injectors,spark plugs, completely new turbo kit, timing chain kit, hpfp, and I don’t what it is. I’m hoping this would be the final solution. It’s a 2013 n26 with electronic Wastegate.
@@rolo7487did this fix your issue? What codes were/are you getting?
Wow you are so complete with your instructions that I am ALMOST convinced to skip waiting for a loaner car and paying the dealer to do it and go buy the parts and do it myself!! Thank you!!! So much! I need more videos for my 528i 012’
I’m letting the dealer do it because it’s throwing a bunch of codes and i don’t have a scan tool myself
Good video, I just did the vacuum pump replacement. A couple of comments:
1. The screws holding in the vacuum pump needed a T40, not a T30
2. On my wife’s 528 it was MUCH easier to reach the vacuum pump from the left (drivers side)
Thanks for the tip on getting the seal and how to get out the old one and it took a long time to figure out how to disconnect the vacuum lines from the engine cover. Great video overall, thanks.
Great notes, thank you!
Also note that it's easier with a 1/4 in bit and ratcheting box wrench to remove the 3 bolts on back of vacuum pump
Very helpful video. You just inspired me to try to fix this myself. Dealer wanted over 2200.00 to fix. I dont have that kind of money. Thank you for carefully explaining every step. My gratitude to all of you for sharing your knowledge and expertise.
We missed this comment Maria but very curious how your DIY went, and did you save all that money in the end!? Hope all is well with your N20!
I just replaced one on my daughters 2013 X3 with an N20 4cyl. engine. It was a little difficult to get the seal out as well as the T30 screws. There is less room between the pump and firewall. The pump solved all the issues. The pump was full of oil and the check-valves were deteriorated and frozen. Thanks for this informative video.
Man. I love these n20 videos. Give me more!
We love that you love these n20 videos sadatx101! More to come
The nipple for the vacuum line for the boot has a check valve inside it, and when that rips, oil goes into your boost vacuum lines. They sell the nipple with a new rubber check valve online
“N20 vacuum pump repair kit”
~$20 vs $500 is big difference. You can save your pump!!
I agree with boomy818 that it is very possible that one or both of the black plastic nipples ( one large & one small) are defective and the smaller one is the actual reason for oil inside of vacuum reservoir. At 11:01of the video when the vacuum pump is rotated oil leaks out of the smaller nipple but I did not see oil from the larger nipple. Just give some thought. Thank you for the video.
Great video, I had a similar problem with oil getting into the vacuum lines, but all I changed was the non return valve that supplies the waste gate actuator.
Glad you like the video, Sipho. Non return valve is a nice simple fix!
Still have a leaky vac pump though?
Excellent video, I currently have this issue with my daughter's 2013 328i.
Thank you very much I’m going to order my parts today and start working on my car this week
It's not a T30 but a T40 for the pump. Great video and explanation!
Thank you. It is very informative. Please keep doing N20 DIY videos. Valve cover, water pump, etc.
Great video! This explication was perfect! Thank you!
14:37 thank you for this boost solenoid
Yow bredda yuh save mi a whole heap a $$$, respect zeen breddrin 🙏
Thank you for creating this video, this is greatly helpful. One thing I need to know is the size of the E20 socket.
I used a 15mm socket to remove the bracket, the one on front is e14, you can get full set at auto parts store for $29.99
I know this is old, but my back piece near the FW was very different. To get access to the back, I needed to take off the windshield wiper arms, to get off that cover that then would allow me take off the piece that was crowding access to the pump. I thought it was going to be a PIA when I first looked at it, but ended up not being as bad as I thought.
I didn’t even know they had a seal on these thanks
I followed all steps replaced everything in this video and the engine malfunction is still there. However, I do have an increase in torque as it should be, what else could be causing this, engine malfunction.
Very good video. Do you have please the diagram for the vacuum hoses and other hoses by chance ?. A mechanic worked in my engine and I believe He didn't reconnect the vacuum hoses properly and now I have a Drive Train Malfunction light on
Me too!
What if my engine cover doesn't have the reservoir? Where is the line supposed to go from the vacuum pump?
What would be the symptoms if that fails?
When you crank the car @21:16 and there is rattling, I’ve read online that that is the wastegate actuator? Can anyone confirm? My car makes the same noise when first cranked.
I'm gonna replacement the vacuum pump now. Is it need to disconnect the battery or not?
Your video is the best. Thank you for your detailed video.
Hi Lee, while it is not mandatory, it certainly does not hurt to do so.
Has this good for BMW and 26 engines as well like 428i coupe 2014
Your the Best Thanks from California
Can you do a charcoal canister replacement soon in 1 of your videos
we can certainly add it to the list!
Great video.
Mine is a 2013 328i, and the 3 bolts are T40 torx,
Not T30.
Thanks
can this cause a rough engine idle??
Love your videos guys, very clear and informative- fabulous work 👍
How did you get the seal in for replacement? Was it easy to pop back in?
I put oil around the seal and i pressed it in with my hand. Hope this helps
I didn’t take anything out from the back top. You can do it without taking all those stuff out. But thank you so much
Hi, Nice job and vidéo
You Just saved my car with your work and tips
I've à question, when we change thé boost solenoid, is there any procedure coding or learning of the new spare ? To set the New settings to the car system ?
Thx 😁
My n20 has an electronic waste gate, I see some fresh oil leak at the back of the engine, what could be leaking oil there? Can it still be the vacuum pump eventhough my car has an electronic wastegate?
Thank you so much for this informative video. Dear sir, I can see you are working on my Engine n20 f30 328i, but I have see the engine top cover is different. I have electeical wastegate actuator which is differ from yours, and I have the same vacccum pump. How to connect this? What's wrong,? My previous owner of this car changed may be exhaust system. I am trying rebuild everything. Let me if you have any help on my email address or here, to share for everyone need this help. Thank you so much I like the way you explain everything step by step.
Great video! Question- I have an n20 with EWG, the 2 vacuum nipples on the engine cover have nothing connected to them, what should go on there to be exact? I suspect some previous mechanic didn't assemble my car properly ?
How long does the timing chain on this engine last? Some say about 100K miles?
very helpful thanks you
When are you all going to do a video for a vacuum pump replacement on a N55 engine?
Thank you I have this problem now I know how to fix it.
Perfect timing Leroy R Crum jr!
You're very welcome! That what we love to hear!
Great run thru.. what should normal idle vac be on the solenoid side of the vacuum tank? And can you do a video on Xdrive oil pan removal? getting ready to do a chain job and I'm good on everything except that part.. Thanks again and please keep up the great work.
Curious why you guys chose to use brake cleaner which ruins rubber and plastic as opposed to something like seafoam that doesn’t?
This is a good point. If this was more than just a vacuum hose we would have used an alternative solvent. That said, brake cleaner is very good at breaking down oil residue and evaporates very quickly making it a good choice for this job. If you're still concerned I would suggest buying a length of new vacuum hose as there are not many solvents that will break down oil without having some side effect on rubber.
www.fcpeuro.com/products/braided-fuel-vacuum-hose-55mm-od-x-30mm-id
Thanks for the video.
I have a F10 with N20 engine and recently there is a problem with the vacuum pump.
There is an oil leakage but I am now sure if it is from the seal between the pump and cylinder cover or from the pump valve.
You said that seal replacement is also needed but is it possible to replace the seal without detaching the cylinder cover?
Our BMW local said that replacing the seal itself cannot be done independently but the cylinder cover must be detached.
Could you please show me a tip for this?
Thanks in advance.
I apologize if this question has already been addressed. I have a 2015 328i N20/F30 I get that drivetrain malfunction but I never get a code. It is my understanding that limp mode drivetrain malfunction or not working at full speed could be anything from intake to gas? I know forsure I am having an issue with the fuel level sensor so I am replacing the lpfp because it's one piece with the sensor and fuel filter. I'm worried it's more than just the fuel level sensor. Is there another way to find out if it is my vacuum pump and boost solenoid? My car is not like this one that you are working on so I would not see oil under the engine cover. Any educating information is greatly appreciated. Thank you your diy videos are well put together and easy to see what you're actually doing..
Is there there happened to be oil in the vacuum line going to the actuator should would we need to replace it as well ? Or just clean out the lines
mine is the same, can this cause a intake camshaft out of tolerance issue?, thats the issue i have but when i take off my cover it leak out lot of oil out of the vacuum resevoir
It is possible that the pump has severely failed!
@@fcpeuro would that cause camshaft to shift timing, also say i change the pump clean out lines and everything will that then fix timing or will it need to be retimed with timing tools
Caught this early on my Z4 not too terrible to do yourself... just another n20 quirk to add to the list
Is this the same replacement for PWG Vs EWG?
I figured it out myself it indeed it not the same
Oil pouring out of engine cover / vacuum reservoir - yep. Would severely reduced fuel economy be another symptom of this?
I have electronic actuator. How do you get to clean the vaccum line that goes from left side vaccum pump to the resrvoir on engine cover that T's off to the right and connects to hose on the right that then goes under brake resrvoir into dash area? That end hose still has oil in it and I dont see any opther way to get to the end of it, other than removing the parts near the brake fluid reservoir.
Hi, try to do the same video on the BMW 116i F20 the N13 Engine PLEASE 🙏
If it is a vacuum pump, even if leaking, why would it push oil in to the lines when it should be sucking air out of the lines?
Ok, so does the pump use oil to create the vaccum? Just confused as to where the oil should be vs. where it should be...
So mine went today. After watching this the day it came out. I completely forgot to look at my pump when this happen today and went to bmw. I wasn't getting an engine issue light but was getting smoke out of engine on the N26. from dripping oil on the downpipe. Went to BMW and they covered it under warranty because I have the SULEV N26 possibly. Anyhow it was nice to see my 120k engine get something under warranty... I really wanted to do it myself lol I had the parts in the shopping cart and everything.
Where did you find a micro torque wrench for the three bolts on the vacuum pump? I am ready to put the bolts back in, but can not seem to find a torque wrench small enough to work......
So this fix pertains only for the vacuum pump?
Not the electronic one?
This actually helped me out a lot!! 👍🏻
Hi, just a ques, what does the vacuum reservoir attached to the engine cover do? I have been driving with my engine cover off and my mechanic just use a new vacuum hose to connect the vacuum pump hose to the bottom nipple of the boost solenoid
Hi, Great video. I have a BMW 11 525D Xdrive 218 HP. Is the vacuum pump sitting on the same place as your car? I have Got Limp and drive train error coming up very often. This type of symptoms are a faulty vacuum pump.
Seems like there was some issues to install the vacuum pump seal ! reason why they didn't showed it 🤔 still wondering, critical step and they just missed it
Could this cause general misfire in different cylinders and stall the car almost immediately? Mine is pouring huge amounts of oil from the cover.
It certainly will not help!
Hi, Is it possible to test and measure with a vacuum pump if the vacuum works like on Booster pressure solenoid?
Thank you so much for this excellent video on replacing the vacuum pump. This is something I need to do on my 2013 X3. I do have a question associated with the vacuum reservoir. I just replaced the valve cover gaskets and had to remove the vacuum pump to do so. I didn't have a new vacuum pump at the time to replace. But I may have a loose gasoline connection, but I can't see where it's leaking with the coil pack/engine cover on because of the lines connected to the vacuum reservoir. Question is can I run the engine without driving it with the vacuum reservoir removed just so I can see where the leak is coming from? Thank you!
Hi Mark, you most certainly do not want to try and start the vehicle without the pump attached, the massive vacuum leak that will cause is enough to keep it from starting.
So if I have the electronic actuated turbo I don’t have the boost solenoid ?
I have an interesting question... what if oil is coming out of the vacuum actuator? (16:24) do we replace it or just move the wastegate until just air comes out?
Nice video except the size of the Allen key is t40. Not t30. Using t30 will damage the inside of the nut.
hi can you make a video how to remove the vanos solenoid on 2013 bmw x3 vanos center valve
You dont have to take off the entire cowl off, also anytime i have to take a vacuum pump off I usually plank on the engine to reach the end lol
How did you clean the hose?
What do you think the issue is if I got a drivetrain malfunction after replacing the vacuum pump? A bad replacement part? Car isn’t running the same as before due to that drivetrain malfunction I believe
Hi Daniel, the best thing to do first is to ensure everything is plugged back in and seated correctly. If the light was not on before the repair, it is possible that something was left undone!
@@fcpeuroyou were right, Car back to normal. Thank you
Hi.Love your video!I have question.Please,can you answer!I have oil in my vacuum reservoir and the malfunction light is on.So do you think I need to replace the vacuum pump?Not any oil should be there,right? Thank you
I enjoy looking at your videos good job
Hi this video was extremely helpful. I do have a question, If we have an engine where the westgate is controlled electronically, would we only have to change the vacuum pump AND also the Westgate? Or just the vacuum?
I wonder the same thing
Just the Vacuum since the wastegate is controlled Electronically. But supposedly the wastegate actuator could go bad overtime in rare cases.
wait, those things are not supposed to leak oil?
is the vacuum pump must be replace on every 100km like timming chain
or
until it run down only replace ?
My bmw shop is charging me 1500$ just to change the boost solenoid on my 2016 x4. I got a drivetrain malfunction the next day after they changed my oil? Do u think it was tampered with? Since the boost solenoid is next to the oil cap?
So if we don't replace these parts it only affects performance or will it damage other parts as well?
Can you tell which s better between the posh Panamera GTS 8 cylinder 2021 and the 4 S V6 cylinder engine
How do you install the seal ?????
how did the oil get into the pump? is there a bigger problem?
Excellent video and super detailed and informative. Just one quick question, the video did not show how to install the vacuum pump seal. Did i miss it? Being the seal is on the back of the engine I was curious on how you actually got the seal in place. Was it difficult to install? Please help me with this because I plan on doing this job and need this info.
Hi Rock, sorry we missed that part! Nate reached back there with his hand and just pressed it in by hand, it keys itself and bottoms out relatively easy. You can lightly lubricate it for an easier install as well. You can do it!
@@fcpeuro Thanks, just got all my parts from FCP Euro and will tackel this job at home.
I NEED SERIOUS HELP!
My vacuum pump bolt is stripped :(
How would I go about getting it out?
Sorry to hear that! You may want to try using a bolt extractor set.
Very helpful educational and DIY video, thanks FCP euro.
You are very welcome, Johnny! Glad you found the video helpful!
Amazing. Thank you
I have the" Drive train malfunction " but I dont have oil in the vacuum system I do have a P2096 (vacuum leak that causes more air to enter the system causing a lean mixture) Do you think changing both these would correct the problem ?
Hi, I've the drivetrain malfunction error with code P15ED saying terminal 15N2/87_2 power supply circuit. Could you please help?
I had a N20 528i, and I had same problem like this vedio. I am going to replace vacuum pump and pressure converter. Should I replace a new cover(because oil inside)?
Sorry my English is not good
What was the mileage of the car when the vacuum pump was replaced? Is this a typical failure around that mileage? My N20 has an electronic waste valve control and I would like to know if I need to be prepared for a new vacuum pump at a certain mileage mark.
hey Pedro, how did your fix come along ? my F34 began to give out a buzzing sound at cold start from the engine but goes away after driving which leads me to believe that the boost solenoid might be going bad. I am wondering if I would need to change the vacuum pump too. Apperciate any thoughts.
@@JR-tl8tg Actually, my engine is still performing 100% without any problems. It has now 94K+ miles and counting. I proactively replaced the timing chain at 72K miles with an FCP chain kit to be piece of mind. The original chain was in perfect condition when I pulled it out. No issues with the vacuum pump and the brakes.
Changed my spark plugs recently and that vaccum tank under the engine cover is filled with nothing but oil drained a lot out of it
Hi from dubai, thanks for great video. Can you explain how a vacuum pump works with solenoid n turbocharger.
I am not sure if I understand your question completely but I think you are asking how the whole vacuum system works in regards to the turbocharger. In that case, the wastegate on the turbo is actuated by vacuum. This is the big canaster that the vacuum line leads to. The boost solenoid lives in between the vacuum pump and the turbo wastegate actuator. This solenoid is controlled by the ECM and when the engine requires a change in boost pressure the wastegate is opened/closed via the solenoid opening or closing allowing the negative pressure to pass and act on the wastegate actuator. Hope this helps.
Do you think it’s okay to install a used vacuum pump? The car had 88k miles and it doesn’t have any oil in the vacuum lines as of now. And it’s 70$
There is no way of knowing how many miles were on the used vacuum pump, we would advise against it unless you know the working condition of it. At the very least you should replace the seal www.fcpeuro.com/products/bmw-shaft-seal-11127507217?+mps&+pump+diy . That being said you do not want to deal with the carnage of a failed vacuum pump.
@@fcpeuro thanks for your response! You guys are great people ,it did have 88k miles! I checked the odometer. And of course I would replace the seal. It’s so cheap I might as well try. What do you think do you think it’s good if it doesn’t leak oil and only has 88k miles? And it’s oem. Ofc I would replace the seal.
@@F80__Los unfortunately we cant really advise you on a used part that we know nothing about, if it passes your visual and manual inspection and you're comfortable running it on the car, we would say do what you see fit! Good luck!
Bro I am still getting drivetrain malfunction message and engine light is on.
For lci 2016 528i bmw can you unblock the one side of the vacuum pump? Where it was blocked Bc lci no longer uses vacuum activated turbo I’m installing a valvetronic exhaust system n it requires to tap vacuum. If I can unblock I will just directly connect it to my exhaust.
What if your wastegate is moving sideways?
You should say what to do if acuwaiter did have oil in it.
How did the seal go in?? No room to tap it in so did it go pretty far in by hand and then the rest of the way when bolts were tightened?
Hi Frank, exactly that! You can get it in most of the way by hand, then once you get the pump started, it will squeeze it in the rest of the way.
Please help
Is it possible that the vacuum pump sit perfectly without being attached to the valves
I have changed the valve cover on my n20 my self and reinstall the vacuum pump it sits perfectly no issues but i want to make sure that it sits
It can only go on one way, so if you have the pump aligned with the camshaft, it will sit in nicely. If it is not aligned, it will not seat in. In an insane worst-case scenario, the back of the camshaft is damaged, leaving nothing to key into, then it will sit in no matter which way you clock the pump.
Can you please do one specific for 5 series?