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      02-24-2020, 02:05 PM   #1
whydillon
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HELP! N55 Leaking Oil

Hello,

Recently my n55 started leaking oil, it was very minimal but my car just hit "Minimal Oil Level" and it is now parked, until this issue is fixed so I don't cause any damages to the engine itself.

SIDE NOTE: I live in Canada and it's very cold here so the oil may not leak as fast, the reason I say this is because overtime I park outside when its cold it leaks very minimal, but when I park in the garage or when its warm outside theres more of a puddle

After some research I'm going to assume it's my Oil Filter Housing Gaskets or my Oil Filter Cover, but I could be wrong and potentially it's something else.

Here are some photos of the top/side/underneath my Oil Filter Housing, looking for a second opinion, should I go ahead and replace the gaskets and the Oil Filter Cover? Or just the gaskets?

If you need any more info/pictures let me know.
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      02-24-2020, 02:52 PM   #2
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Clean the area thoroughly, put some UV dye in your oil to trace the leak.




It's not likely that the oil filter cover is leaking, but the O-ring inside it may be. That happens a lot if the filter isn't replaced with an OEM grade Mann or Mahle.
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      02-24-2020, 10:33 PM   #3
whydillon
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Quote:
Originally Posted by Billfitz View Post
Clean the area thoroughly, put some UV dye in your oil to trace the leak.




It's not likely that the oil filter cover is leaking, but the O-ring inside it may be. That happens a lot if the filter isn't replaced with an OEM grade Mann or Mahle.
I plan on doing an oil change asap and I am going to be using this oil filter:

https://shop.advanceautoparts.com/p/...7CL4*-49999785

Should I use the o-rings that come with it? Or should I go to the dealership and pick up the OEM BMW ones?
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      02-24-2020, 10:55 PM   #4
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I am in Canada also, Surrey, BC.
I went through this about 1 year ago and then again 6 months ago again.
it looked exactly like this.

first time I used cheap gaskets and within 6 months or less, it started leaking again.
2nd time Oil got on my belt and Tensioner, and started speaking to me.

I don't think in your case it's the housing, just the OFHG.

I have done this job 4 times on 2 different vehicles and got really sick of doing it.
I think this time I found the right way to do it.

1) watch this video: you want the updated Gaskets from BMW OEM....easily found on ebay for 30ish.
Just a Note, that the new BMW Gaskets come with nubs all around, for both OFHG and OIL Cooler Gasket.....so get the correct ones.


2) Now for me, the word reduced leak was not good enough for me.
so I called Permetek local product manager and explained my situation, and he stated, that I should be using Permetek Ultra Grey, along side the new Gaskets.
(so far 1 year, no leaks.)

3) after cleaning both surfacesm and the groves in the OFH, then place a VERY small bead of Utlra in the grove, first in the OFH, then install the Gasket, now the Gasket if installed properly will stick out a bit, now ad another small bead of Ultra Grey, but this time, make the upside down V Shape all along the Gasket to the metal.

4) Install and THUMB Tighten ONLY.
5) same procedure for OIL Cooler Gasket.

6) Wait like an hour, or for it to cure, follow recommended wait times according to Ultra Grey packaging.

7) Torque all Bolts to correct Torque Values, (DO NOT Over Tighten)
8) Wait 24 Hours before starting your car.

No More leaks.

if you got oil on the belt, replace it.

Good luck.
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      02-25-2020, 07:22 AM   #5
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Quote:
Originally Posted by whydillon View Post
I plan on doing an oil change asap and I am going to be using this oil filter:
https://shop.advanceautoparts.com/p/...7CL4*-49999785
Why? Don't believe advertising hype. Use the OEM filter, save some $$$. https://www.fcpeuro.com/products/bmw...1-8195#fitment
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      02-25-2020, 03:54 PM   #6
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I do not recommend using the K&N PS-7014. A neighbor, also with an N55 F30, did so a year or so ago and immediately had a leak at the Filter cap. When we examined the O-ring, we discovered that instead of being round, it was oval and there by not providing adequate seal. I sent it to K&N with details of what happened- never got a response. Don't know if that was just a wrong O-ring or all of the PS-7014s are like that. Stick with a MANN/OEM filter kit.
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      02-25-2020, 09:23 PM   #7
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Quote:
Originally Posted by Orion4 View Post
I do not recommend using the K&N PS-7014. A neighbor, also with an N55 F30, did so a year or so ago and immediately had a leak at the Filter cap. When we examined the O-ring, we discovered that instead of being round, it was oval and there by not providing adequate seal. I sent it to K&N with details of what happened- never got a response. Don't know if that was just a wrong O-ring or all of the PS-7014s are like that. Stick with a MANN/OEM filter kit.
Was the filter itself good?

Pretty set on the K&N PS-7014 oil filter, might still buy it and just purchase the OEM BMW O-Rings as well instead of using the K&N O-Rings as you mentioned they may not seal properly.

I don't mind spending extra money to make my engine happier lol, I just want whats best.
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      02-25-2020, 09:25 PM   #8
whydillon
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Quote:
Originally Posted by BashShah View Post
I am in Canada also, Surrey, BC.
I went through this about 1 year ago and then again 6 months ago again.
it looked exactly like this.

first time I used cheap gaskets and within 6 months or less, it started leaking again.
2nd time Oil got on my belt and Tensioner, and started speaking to me.

I don't think in your case it's the housing, just the OFHG.

I have done this job 4 times on 2 different vehicles and got really sick of doing it.
I think this time I found the right way to do it.

1) watch this video: you want the updated Gaskets from BMW OEM....easily found on ebay for 30ish.
Just a Note, that the new BMW Gaskets come with nubs all around, for both OFHG and OIL Cooler Gasket.....so get the correct ones.


2) Now for me, the word reduced leak was not good enough for me.
so I called Permetek local product manager and explained my situation, and he stated, that I should be using Permetek Ultra Grey, along side the new Gaskets.
(so far 1 year, no leaks.)

3) after cleaning both surfacesm and the groves in the OFH, then place a VERY small bead of Utlra in the grove, first in the OFH, then install the Gasket, now the Gasket if installed properly will stick out a bit, now ad another small bead of Ultra Grey, but this time, make the upside down V Shape all along the Gasket to the metal.

4) Install and THUMB Tighten ONLY.
5) same procedure for OIL Cooler Gasket.

6) Wait like an hour, or for it to cure, follow recommended wait times according to Ultra Grey packaging.

7) Torque all Bolts to correct Torque Values, (DO NOT Over Tighten)
8) Wait 24 Hours before starting your car.

No More leaks.

if you got oil on the belt, replace it.

Good luck.
Thank you.

This video you provided cleared up a ton of information that I was not aware of such as the gasket design flaw, gonna have to upgrade to the new ones for sure!

Also, do you know where I can find the information on how much to Torque each bolt, I'd hate to have another leak from being too loose/too tight as you mentioned!
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      02-25-2020, 09:47 PM   #9
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Quote:
Originally Posted by whydillon View Post
I don't mind spending extra money to make my engine happier lol, I just want whats best.
Mann/Mahle OEM are best. That's why BMW uses them. It's not a Fiat.
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      02-26-2020, 01:15 AM   #10
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Quote:
Originally Posted by whydillon View Post
Thank you.

This video you provided cleared up a ton of information that I was not aware of such as the gasket design flaw, gonna have to upgrade to the new ones for sure!

Also, do you know where I can find the information on how much to Torque each bolt, I'd hate to have another leak from being too loose/too tight as you mentioned!
See attached.
Page 32 of 38.
22nm for the OFH E Bolts.
OIL Cooler Lines only 1 Bolt is 8nm on page 36 of 38
use this link to convert from nm to foot pounds
https://www.unitconverters.net/energy/nm-to-ft-lb.htm

good luck
and DO NOT Over tighten, then you crush the stupid design very easily.
this is why i used the Permetek Ultra Grey.
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File Type: pdf ISTAD Oil Filter Housing Gasket V1.pdf (3.27 MB, 11 views)
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      02-26-2020, 05:04 PM   #11
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Don't know. It was only installed for short time due to the leak. He decided to be safe and stick with the Mann. You pay more for the K&N and then add getting the O-ring. Why bother? It's not like the K&N is going to give you more HP! I've used Mann's in all my BMWs without a single issue. I get mine through FCPEUR for $8.79 AND get reimbursed for that amount when I return the used filter and o-rings, after the 2nd purchase- No Brainer for me!



Quote:
Originally Posted by whydillon View Post
Was the filter itself good?

Pretty set on the K&N PS-7014 oil filter, might still buy it and just purchase the OEM BMW O-Rings as well instead of using the K&N O-Rings as you mentioned they may not seal properly.

I don't mind spending extra money to make my engine happier lol, I just want whats best.
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      02-27-2020, 03:41 PM   #12
whydillon
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Quote:
Originally Posted by BashShah View Post
See attached.
Page 32 of 38.
22nm for the OFH E Bolts.
OIL Cooler Lines only 1 Bolt is 8nm on page 36 of 38
use this link to convert from nm to foot pounds
https://www.unitconverters.net/energy/nm-to-ft-lb.htm

good luck
and DO NOT Over tighten, then you crush the stupid design very easily.
this is why i used the Permetek Ultra Grey.
I see that the PDF you attached is for a F30 335i N55, will the torque be the same for a 15' F32 435xi N55?

Just want to double check lol
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      02-27-2020, 03:42 PM   #13
whydillon
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Quote:
Originally Posted by Orion4 View Post
Don't know. It was only installed for short time due to the leak. He decided to be safe and stick with the Mann. You pay more for the K&N and then add getting the O-ring. Why bother? It's not like the K&N is going to give you more HP! I've used Mann's in all my BMWs without a single issue. I get mine through FCPEUR for $8.79 AND get reimbursed for that amount when I return the used filter and o-rings, after the 2nd purchase- No Brainer for me!
Sounds good, yeah I'm not gonna risk it, I'll just use the OEM ones and play it safe!
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      02-29-2020, 12:10 AM   #14
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Quote:
Originally Posted by whydillon View Post
I see that the PDF you attached is for a F30 335i N55, will the torque be the same for a 15' F32 435xi N55?

Just want to double check lol
I am pretty sure it is for all N55.
just an FYI, it was the same torque for my N54 also....LOL

The OFH is and has been the same since the 2006.
the design has not changed at all.
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