BMW N62 Vacuum Pump Oil Leak Repair - 650i 645i 750i 745i
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- čas přidán 13. 09. 2024
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Timms BMW Repairs and Information. As a general rule I’m not too worried by a small oil-leak, after owning seven M62 V8’s you get used to the slight weeps around the valve covers. The problem with the leak from the vacuum pump on my 650i is that the oil blows back onto the exhaust manifold - and that stinks.
Seals: amzn.to/2Z27Z7j
M6 x 15 SS Bolts: amzn.to/2ZfKL8Z
M6 x 10 SS Bolts: amzn.to/2TK45K1
Washers: amzn.to/2Mlt3Pb
These pumps are a problem on many models of BMW - the leak comes mainly from the front o-ring which is under the machined front cover. The cover is thin and only has five fixings, a tiny loss of elasticity of the o-ring and the small bow of the cover between fixings is enough to let the oil out.As there is very little manifold vacuum, when the throttle is given a good poke the crankcase pressure cannot be relieved by the feeble vacuum pump.
The positive pressure is too much for the thin face plate on the pump and out comes the oil - it gets blown backwards and onto the exhaust. It is easy to think that you have fixed this oil-leak as during normal driving it doesn’t leak, but after a good thrashing it can start spewing oil out again.
There are a few routines around on various BMW models for replacement of the o-rings and I looked at quite a few before I started this job, but using the standard method there is a possibility of breaking the lugs on the pump and other ghastly hassles that you don’t need. I decided to do the job in an unusual order so that there is no possibility of damaging the pump - but I’ll explain this as we go along.
The on-line routine can be found here:
www.meeknet.co...
#BMWVacuumPump #BMWOilLeak #VacuumPumpRepair
Timm, great information. I replaced mine to resolve a leak and this video was extremely helpful! .One thing I might add, folks may want to use caution with the black bar sweep in the rotor. Its slides out easily and the ends will pop right out as well. Mine dropped down to the splash tray and when I removed manged to extract it one of the ends were missing. After an hour of removing the splash and digging around throughout the engine trying to locate the part, I found it on the ground afoot away under a towel I dropped when looking . BUT, the leak continued after I was done. Turns out the leak was from the oil pressure switch directly underneath the vacuum pump!. Lessons learned. Bright side of removing the splash guard was I went ahead and cleared all the grease and grime from the leak off the guard and the undercarriage.
Well worth saying!
With your inspiration I did this yesterday on my '07 750Li. One of the screws stripped (topmost one). It was ridiculously tight. I cut a slot across the screwhead with a Dremel rotary tool and cut-off wheel but a well fitting large flat screwdriver wouldn't budge it. I applied penetrating oil (PB Blaster) and ended up using a small chisel in one side of the slot to attempt to drive it around, slicing off metal nearly 1/4 of the way around before it budged. It moved a little 2 times, not quite 1/8 of a turn, and then freely turned out with fingers. In hindsight I suppose I should have applied penetrating oil when it first offered more resistance than the others. I didn't see any obvious corrosion on the screw or in the threads. My gasket kit included 5 new screws which had a larger, different shaped head that protruded slightly above the cover, but I'm contemplating getting screws like the ones you used so that there will be much more material to grab on to if needed in the future.
It took me about 45 minutes of work to replace my vacuum pump after seeing this. You rock dude!
That's kind of you, thanks!
I was dreading this repair but after watching your video it looks easy.
Nothing on a BMW ever looks easy even when it should be, because it can't be and that be a lesson you'll learn the hard way thinking you're on easy street. Suddenly you're shredding money like Edward scissor hands using change to pay Freddy at the Quick Trip on Elm St. :-(
@@alexdelarge8749 yeah I got rid of my 650i. Huge money pit.
Carried out this repair today on my 645ci as per your video. Worked perfectly. Thanks Timm!! 👍
Nice work!
Thanks Tim! Did mine. Ended up using M6 x 16.
Nice 👍
Carried this out today, thanks very much Timm.
I forgot assembly grease, and getting the flap back in the camshaft was a proper nightmare 😂
Alright, Timm. Another weekend, another lesson tutorial. Here we go again! Thanks again, Sir!
Good man!
I found that by turning the 27mm crank bolt I was able to get the slot for vacuum pump straight up and down and that made fitting a reassembled vacuum pump back into the car a piece of cake. The mating piece in the pump itself flops around so refitting can be annoying....very easy to look inside of the heads and see where the mating piece is in its rotation when the pump is off the motor. Do that and the job becomes a breeze.
i found it easy to turn motor by hand then place back same bmw tis . thanks saved me new one
Fantastic - great explanation on the pump and great tip on the cover off install!!
Glad it was helpful!
Simples... Been bugging me for a while since I've jetwashed it. Great vid with nice editing to show alignment... Many thanks buddy....
Glad to help Kerry!
Thank you! Trying the method next week once my parts arrive and I buy some of those screws!!
I hope it worked out for you!
Thank you ever so much for posting, you have no idea how much this cheered me up seeing how easy it was to do! :)
I'm so glad!
AYE! your video just saved me a ton of head scratching.. servicing an oil pressure switch on a 10 650i with no manuals.. during repair i heard something small fall and hit the skid plate, didnt see what it was.. after job car is making a belt squeaking like sound except not the belt, it was the Vacuum pump.. seen the Hose/nipple was missing so i knew i needed to find it HOWEVER the video i was referencing had a hose while i did not..... finally i find your video where the nipple is plugged and i realized the thing i heard fall was that nipple.. promptly found it and reinstalled it.. 20mins of shit that never need to happen.... BUT! Thanks for the upload
That's great news!
Nice one Timm, making ownership of the beast much more palatable
My pleasure!
Thanks Timm, excellent video as usual. Followed this and it all went perfectly, eliminated the rough idle I was experiencing and hopefully the oil leak too. J
Great news, thanks!
Can I ask why it eliminates the rough idle. mine is leaking and it does idle rough at start. Thanks
@joes3534 I'm about to see if this is my problem too, but It must be some sort of vacuum leak or it's throwing sensors off, does yours like to blow smoke after idling for 5mins+ too?
@@pokingfun4008 Not the 650i I have now. Never saw any smoke. Thank God. 😊. I had bad experience with 2 other 650i in the past with bad seals. I don't know why some of those 6 series do smoke and some don't. I wish to know the difference how they were driven before. 😕
haha i was asking because ive got that problem atm, but i know for a fact its not my seals because it never smokes on startup, but if you ever get smoking its not always the stems like people say, the way you drive these cars isnt what kills them its people who dont change the oil/do maintenance frequently after maxing them out every day 😅 if you have a vacuum leak/bad ccv valves sometimes itll pull oil in the intake while idling and burn it making it seem like the valve stems @@joes3534
The perfect seal I found for the front cover plate is the one I use for my e36 m5x/s5x water pump oring thank me later 😊
Leaking in the same place on my E63. I've been putting off the repair for ages, but your video and the links are really useful. Now everything on order, and planning to get it fixed permanently this coming weekend. Great advice on the m6 bolts too, really helpful.
Cheers :o)
Thanks, my pleasure!
Same case for me. I found this video today so I guess I'm gonna give it a shot and DIY :)
Great video and write-up, thanks! Only think missings is the Nm spec for the bolts.
I can't say I've ever used a torque wrench on tiddly bolts like those on the pump - most don't go down to a low enough setting. Must be careful with them as it is an Aluminium body!
Nice 8-series on the driveway there..
what i do is using a litle bit thiker o ring and that will seal this for very long time
Great Video, Thank-you!!!
My pleasure!
Does the vaccum pump need to Stay capped or does you supposed to run a hose to it from some where
On the N62 it stays capped
@TimmsBMWRepairsandInformation I have a 550i might be a E63 8 think I'm getting this air release sound near my engine or coils but I have no lights on on my dash or codes of vaccum leak
Thank u so much i needed this very bad.....godbless u
Thank you!
bro I have a question for you, I have an e60 545i. Do you know where the 2 pipes go from this vacuum booster? One of the pipes goes to the exhaust flap system?
Sorry, never worked on your model - but one goes to the manifold...
Hello Tim. I just rebuilt mine and positive it was installed with the keyway in the cam slot and all settled in. Started the car and bam, bike the housing in two. Luckily nothing went into the engine but can't understood why. Ordered a new pierburg pimp and waiting for delivery. Is this things internals not symmetrical? Does the tang that goes into the camshaft only go on one way? Or is there no "top or bottom" side of the tang? Waiting to install the new one so I don't break another.
Thanks!
Cheers- did mine today!
Good man, keep up the good work!
Good tip fella, thanks for this
No problem 👍
I´ve made the job thanks. After doing I´ve observed an strange noise (metal) from de pump, is that ok ?
Hi timms could you do an video with the tools required to do an maintenance on bmw series 6? For example what you use often and the size.
Here you go: czcams.com/video/woTGvS8eyiY/video.html
Great video. I tried doing this repair on my 05 645ci but I don’t have access like your car I have another hose running right in front of it not sure how to work around it.
What sort of pipe is it, rubber, metal?
Timm's BMW Repairs and Information thanks for the prompt response. I was able to get the job done.
I’m looking how to change my power steering reservoir and hoses
thank you for the great solution. will the pump refill with oil on its own or do I need to add oil before starting the engine?
Yes, no need to add oil, it soon gets a film of oil!
Hi. What kind of grease I have to use ??
You need a general purpose grease such as this:
amzn.to/3T5nL9T
That is one clean engine! Do you use anything special to wipe the black surfaces? Well done review. Thxs...
Thanks! There's no simple way of cleaning an engine bay - I just use cheap microfibre cloths (lots of them) and wipe down everything I can get to - it is amazing how well that works out!
So you only replace the screws of the front plate by the M12x15? But the three torx for the pump remain unchanged?
All explained here: www.meeknet.co.uk/E64/Timms_BMW_E63_and_E64_N62_Vacuum_Pump_Oil_Leak_Repair.htm
@@TimmsBMWRepairsandInformation thanks a lot for your response! This helped me a lot and now it is clear. Keep up the good work, looking forward for upcoming new N62 Videos 😊👍
brilliant! It helps a lot!
Glad it helped Denis!
Any specific kind of grease you guys are using?? Going to knock it out tomorrow!
Just a pot of General Purpose from Amazon!
Hello ,
What torx wrench can remove these three screws around brake vacuum pump ?
could you send me new links Tim? the old washer one does not work work, also do i need 3 M6x15 and 2 M6x10?
Thank you for the video and online version. Do you have a recommended torque setting for the bolts?
Thanks! You only need 20NM or so, but I don't usually use a torque wrench on these small bolts on aluminium, just use a short wrench of 9 inches or so and don't turn too hard!
Hi Tim, great video as usual, wanted to ask if an oil leak like this or one from the valve cover could cause damage to other peripheral components like the alternator or starter motor in the N62 engine?
Thanks! Yes, it can - my alternator gave up after it was covered in oil!
Thank You kind Sir
My pleasure Harry!
I'm doing this for my 550i just ordered part no toy for now 😥
Shouldn't take long - just make sure you don't tighten-down the pump before making absolutely sure it is aligned with the camshaft - they do crack if not fully engaged.
Hi I changeg this about 5 months ago now it started making the same noise it did like whining buzz noise at idle comes and goes bote my pcv orange rubber was bad must of ben bad for a long time idk if that caused it to fail
@@silent_torseeker7741 When my mechanic mentioned that I had this leak, he also said that in the past, he's changed out just the O rings for customers before and they tend to wear out again about 6 months later. Sorry for your luck!
Hi Tim I have a 2008 650i convertible as you do and I got an 11,000 bill from a BMW shop,for engine oil leaks and coolant leaks. They are saying that the engine is good, but the seals inside the engine is where the leaks are coming from. They said it's a 40 hour job to open and seal. Your thoughts please and thank you.
Hello, that sounds like the famous coolant transfer pipe, it will be leaking coolant from the water pump weep hole if that is the case. Find another garage that does the extending pipe replacement and the labour will be around 8 hours instead of 40!
Hey Tim- thanks for the video and instructions. Going to do this repair next weekend. You first attempted m6x10 bolts but they didn't work. Instead of the m6x15s with washers in your opinion will the m6x12 work without washers?
I still got a very small leak after some spirited driving - just damp rather than dripping. The washers did the trick as they spread the pressure further.
@@TimmsBMWRepairsandInformation aha! Cheers mate! Thank you for the speedy and informative response. I'll go the same exact route you did with the M6x15s and washers. Of course I had the m6x12s on hand already.
Hi there , are we using two washers per bolt ?
Hellp,
My car is e63 650i 2007 and my air pump is leaking bad as well, please let me know the OEM part number of BOTH O-rings not just the big one. Ebay link would be useful as well.
The easiest way to find parts is to use www.realoem.com/bmw/enUS/select - stick your VIN in and you will find all the parts used on your car.
Question for you sir...I have a 2005 645ci 4.4L It started a gradual cold start misfiring ( code 0300 multiple misfire ) so I replaced all coils with Eldors and new Bosch plugs per BMW specs, still misfiring. Then I replaced the vacuum booster O-Rings ( Silicone seals ) the car is still misfiring ( 0300 code ) my next move is replacing all four of the Vanos Solenoids this week. My alternator bracket is leaking but terribly. ( Next project ) Also did pressure smoke test and no leaks. So what's your opinion? Car has 79,000 miles on it. I'm about to lose my mind over this car. I do have a independent BMW mechanic working on this car. Just asking for opinions.
Thanks
That sounds like a blocked catalytic converter - get a garge to do a back-pressure test at the Lambda points. If you want further help stick it up on this forum: www.bimmerforums.co.uk/forum/f16/
Hello great video. Any idea on where to find the needed parts in USA? I checked Amazon with no luck... Thanks
Try the search term 'BMW Vacuum Pump o-rings' and you will find them on both AMazon and Ebay
Canada
Is oil leak from the vacuum pump can cause vacuum leak to the engine? I've changed pretty much everything and now it's only the pump that is leaking quite heavy
Have you replaced the o-rings and bolts as the video shows?
Hi, could you confirm where I can get the seals? The smaller one is a BMW spare. The larger one is not listed. I can buy from abroad off eBay, but no guarantee they will fir! Thanks, Mick
I got them from Ebay as I could not find them from BMW
Hi, would it be ok to use m6 x 16 bolts with washers?
Yes, there's probably at least a millimetre spare....
@@TimmsBMWRepairsandInformation did you have to remove the hose attached to the pump on the top?
@@unauthorisedgangsta No, I left that in place....
I’m getting ready to do this.
Did you have to add oil after this?
No, nothing lost!
Just a question- I have a 2013 750li xdrive ( Montana, USA). Do I need to worry about the vavle guides/seals on this engine (N63T, I think, build 2012-11-13) like the original N63? 60k miles. Thanks. Tim Pfister
Hello Tim, just keep up with yearly oil-changes and you have nothing to worry about!
@@TimmsBMWRepairsandInformation Tim Pfister - Thanks for the reply. I think I will also use a seal conditioner now, as a preventive. Wynns?
Hello, I just replaced vacum pump in my e61 550i for new one but after few days squeaking noise appeared. Any suggestions what that can be?
Difficult to say - is the noise coming from the new pump?
This is great info for a quick fix, i plan to this tomorrow but i dont have the opportunity to order from amazon where i live, does anybody know the o-rings dimensions so i can buy them from a local shop just before i take my pump apart ? Thanks !
Sorry, I didn't measure them, and I doubt if they can be had 'off the shelf' as BMW uses some strange sizes!
@@TimmsBMWRepairsandInformation if they are regular circular section o-rings, then a close size would be fine, anyway, thanks for the response, you are doing amazing work here on your channel and website, i learned alot of useful info about engines, and you also have good taste in choosing cars. i owned e39 540i, now i own a e39 m5, e63 645ci and i dream about a e31, cheers!!
Hi Tim I found the smaller o ring but cant get a part number for the o ring under the plate,would you have the part number?
BMW don't sell the o-ring (well, it isn't on the realoem diagram) - so I bought through Ebay with a search of 'BMW N62 Vacuum Pump Seals' - you will find lots of them there!
@@longmoormilitary-railway7620 thanks bud will look into it now
I followed the steps but the pump won't fully go back in. Can you give some additional guidance?
Have a look at the procedure at 2:08 - rotate the rotor until it slots into the camshaft and then push the pump body and rotor fully into position.
@@TimmsBMWRepairsandInformation I did that but still wasn't fitting. Found on another video I needed to turn the motor so the camshaft is upright. Unfortunately I forced it on and cracked the pump. Just ordered a new used pump on eBay for $40
Update - got it on. 👍
hi timm, please tell me were i can get the second o-ring between the pump-body and the cover-platte. The little o-ring is a bmw spare part but not
the big one. Thanks a lot.
Ebay is your best bet - that's where I got mine from.
Timm's BMW Repairs and Information
thank‘s for the quick answer but i can‘t get the o-ring behind the coverplate (the ohne with the langer diameter). Could you please give me the dimension
or even better the part number. Thank you for your patience.
@@mickeymouse8790 Use 'N62 vacuum pump seals' on Ebay and there are thousands of them - here's a search in the UK: www.ebay.co.uk/sch/i.html?_osacat=0&_odkw=bmw+n62+vacuum+Pump+o-rings&_from=R40&_trksid=m570.l1313&_nkw=bmw+n62+vacuum+Pump+o-rings+seals&_sacat=0
that‘s what i wann to know.😎 Thank you Timm
Can you please give me the exact measurements of the hex bolts .. I can find them ....!
They are specified in the video @ 2:29 and 2:40 and are M6 x 10 and M6 x 15.
@@TimmsBMWRepairsandInformation thanks timm all i can find is M6*1.0*15mm is this the same
@@jagveshjagernauth8049 Yes, the other measurement is the thread pitch, they will do nicely!
My bmw 545i 2005 e60 is having a rough idle and spitting some codes can you help me
what codes?
Also does a defective one make like a whisle Noise
Not as far as I know - more likely to be one of the PCV valves (sometimes called crankcase ventilation valves) - easy to change and around £30, details here:
www.meeknet.co.uk/E64/BMW_E63_E64_Crankcase-Ventilation-Valve-Replacement.htm
....or wait a week as that is the next video coming up!
Oh ok cause I try repairing my self I just pay for the diagnostic to pinpoint is more like a buzz whisle kinda sounds electronic or like a old school UFO sound lol
Try this:
czcams.com/video/Yy_Vzir5xco/video.html
Thanks I took it to get diagnosed they are sure it's the vaccum pump well ordered it and will be changing Wednesday you can also check my only one video it shows the sound there if you are curious
Would this cause the brakes to judder? someone on a forum suggested it may on my friends 640d
No, although the brakes are vacuum assisted the pump would never cause a judder - the vacuum is accumulated by the brake booster - and an oil leak does not affect the vacuum anyway!
Did you ever find out what was causing that judder? I have the same problem on my car I think
@@logann6615 afraid not he ended up trading it in as it had a few issues he didn't want to deal with
the proplem is the orginal o-ring is to skinny it would leak after some time, put a thicker o ring and this proplem is in history
Mine is crying for help. Literally crying oil out....
They do that!
Anyone familiar. With the f02 chassi 2014 750. Need some. Help. I
Does anyone know how to fix a really bad misfires When it is cold once it runs a little bit it runs fine. I'm getting a lean on idle and misfire codes. Seams like other people have issues on other BMWs but not solutions for a 05 645ci E63.
The best plan is to use INPA - more info here: czcams.com/video/CBfyCItOJH0/video.html
any dme codes stored? I had this happen to mine, once I removed the codes it was back to normal.
550i?
What, the 5-series boys didn't get the big one? Shame!
I got a p0022 code after doing this
P0022 means over advance on Bank 2 - the vacuum pump is on Bank 1, so probably not the reason - but a cause can be the chain tensioner that is between the blocks - always worth changing it anyway as it keeps the chain guides happy!
I have a 750i
@@chechoteterrazas5565 Well done!
damn ://// why didn't i see this like 5 months ago :P
Well, I posted it years ago!
This is something that is clearly bmw’s engineering fault
Splash this is one of many flaws by BMW 60,000 dollar plastic filled cars. Loads of over engineering and loads of under engineered things.
Bb