N20 Catch Can

MHL · 11-21-2017, 07:04 AM

Would these also be needed in a B48M engine?

sspade · 11-21-2017, 08:29 AM

Quote:

Originally Posted by Jamitt

Why can't these be shipped or sold in California?

Not sure what you mean... I just moved to Cali from east coast on 8/1 and I was able to buy one online, have it delivered and install it without an issue whatsoever...

sspade · 11-21-2017, 08:30 AM

Quote:

Originally Posted by MHL

Would these also be needed in a B48M engine?

If it is direct injected and does not have one stock then yes.

M2_MEDUSA · 11-27-2017, 09:12 AM

Crazy how long you guys wait for oil change interval especially with all the horror stories on the N 20/26 engines. Right now I'm under warranty and I take my car in for an oil change every 4.5k miles. And I plan on doing an oil change every 4K miles after I'm out of warranty in about a month.

sspade · 11-27-2017, 09:34 AM

Im changing mine every 5k as Ive always done. Just hit 36k. Will take my last couple freebies on the 10k marks and in my garage in between with the Mobil 1 recommendation from owners manual.

take1step · 11-27-2017, 03:05 PM

Has anybody found a heated can or recommendations to avoid these cans freezing in the winter months? It's freezing here in Canada!

drivef30 · 12-01-2017, 06:08 PM

Update, after I'd say 1000miles or so. Looks really fully and watery, not sure if this is normal. Let me know you opinion, my car isn't driving frequently and does many short trips.

sspade · 12-01-2017, 06:44 PM

Wow. That looks incredibly orange!

I thought mine looked odd but yours is even less oil looking? And the volume of liquid caught after only a thousand miles does not seem right either...

I have the N26. Basically same as N20. Which do you have?

sspade · 12-01-2017, 06:51 PM

Quote:

Originally Posted by take1step

Has anybody found a heated can or recommendations to avoid these cans freezing in the winter months? It's freezing here in Canada!

My last car was originally purchased new and driven the first 20k in Michigan. Equally cold as most populated parts of Canada...

I never had a problem with it freezing or even aware this was possible BUT my last car was NA and my can caught a much more "oil like" substance and less watery than my N26. That could definitely play a factor.

Not a worry for me where I live now but still interested to hear others opinions on this as well... anyone?

drivef30 · 12-01-2017, 07:24 PM

I hoping its because of the short trip and not reaching operating temp frequently. Car runs great otherwise. I will be doing a oil change next weekend and drain the OCC again and see the result from there on.

Ps. Freezing oil catch can shouldnt be too much of an issue. Oil doesnt freeze to start of with, and the water would freeze inside the can but would not affect air flow unless your can gets super full like mine LOL. So dont worry about a heated can IMO

jthoms1 · 12-02-2017, 06:31 AM

So, I bought the BMS oil catch can and attempted install. What should have been an easy 30 min job for a shade tree mechanic turned into a debacle. I have a 2012 328i. First problem I ran into was the vent hose you disconnect to insert a reducer and attach to the can was brittle so it snapped. One hour drive and $62 later. While removing the aforementioned vent hose from its lower attachment point to the larger hose that attached to the airbox...one of the retaining clip points brokeon the large hose. I finally got everything back together and the can installed it was running rough and throwing a P107 code (I think)...it was the one indicating a an air leak in the intake system. Fortunately I just bought this thing as a CPO about 1.5 weeks ago and already have a 7:30 Monday drop off for them to fix the brakes. So, I removed the can...put it all back together and will have them investigate the code and discover the the other hose with the broken clip point that needs replacing. The question is...once I get it back will I dare to attempt install again?

This was just a cautionary tale to others consider some issues they could run into on a simple mod....especially if your car is a bit older.

drivef30 · 12-02-2017, 02:00 PM

Any pictures of the broken parts? (I myself broke something in my install (pictures on the last page, and need to take my car in aswell). Let us know if they cover the repair for you under cpo

jthoms1 · 12-05-2017, 06:09 AM

Quote:

Originally Posted by drivef30

Any pictures of the broken parts? (I myself broke something in my install (pictures on the last page, and need to take my car in aswell). Let us know if they cover the repair for you under cpo

Picking the car up today. As I mentioned in my post, the CVV hose broke (the one you disconnect from the front top of the engine) and the large hose that connects to the MAF/Airbox. On the large hose the connectors that hold the CVV hose in place snapped as I was trying to remove it. That was self inflicted as I need to be more gentle working on this thing, I’m used to building 4Runners. They did replace the large hose under CPO.

vooonoo · 02-18-2018, 07:24 PM

Do you guys end up having to top off the oil with these cans?

sspade · 02-18-2018, 07:37 PM

Nope. I change my oil every 5k religiously and the oil loss is insignificant and within spec of the digital oil level meter. I suppose if you ran 10k intervals without emptying the can... you may risk overflowing / lowering the amount of oil in the crankcase to get an low oil warning.

hmmwvj · 04-26-2018, 04:27 AM

Does anyone have oil forced out of the catch can's threads and running down the side of the can?

Also, the can is dry/empty and only smells of oil. I'm wondering if the 50 micron filter is too restrictive.

11-21-2017, 07:04 AM	#23
MHL Private 13 Rep 65 Posts Drives: '20 BMW G22 and '22 Volvo S60 Join Date: Oct 2017 Location: Europe iTrader: (0)	Would these also be needed in a B48M engine?
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11-27-2017, 09:12 AM	#26
M2_MEDUSA Major 664 Rep 1,074 Posts Drives: 2021 M2 Comp. SpecialEdition Join Date: Sep 2017 Location: Texas iTrader: (0)	Crazy how long you guys wait for oil change interval especially with all the horror stories on the N 20/26 engines. Right now I'm under warranty and I take my car in for an oil change every 4.5k miles. And I plan on doing an oil change every 4K miles after I'm out of warranty in about a month. __________________ Instagram: M2_Medusa
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11-27-2017, 09:34 AM	#27
sspade Major General 2465 Rep 5,457 Posts Drives: F30 Join Date: Oct 2017 Location: Stevenson, WA iTrader: (3) Garage List 2016 BMW 320i [7.87] 2014 BMW 328i [6.83]	Im changing mine every 5k as Ive always done. Just hit 36k. Will take my last couple freebies on the 10k marks and in my garage in between with the Mobil 1 recommendation from owners manual.
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11-27-2017, 03:05 PM	#28
take1step Private 101 Rep 96 Posts Drives: M340ix 2020 Join Date: May 2017 Location: QC iTrader: (0)	Has anybody found a heated can or recommendations to avoid these cans freezing in the winter months? It's freezing here in Canada!
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12-01-2017, 06:08 PM	#29
drivef30 Lieutenant 111 Rep 463 Posts Drives: 17' 340i xDrive M-Sport Join Date: Aug 2017 Location: Michigan, USA iTrader: (2)	Update, after I'd say 1000miles or so. Looks really fully and watery, not sure if this is normal. Let me know you opinion, my car isn't driving frequently and does many short trips. Attached Images
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12-01-2017, 06:44 PM	#30
sspade Major General 2465 Rep 5,457 Posts Drives: F30 Join Date: Oct 2017 Location: Stevenson, WA iTrader: (3) Garage List 2016 BMW 320i [7.87] 2014 BMW 328i [6.83]	Wow. That looks incredibly orange! I thought mine looked odd but yours is even less oil looking? And the volume of liquid caught after only a thousand miles does not seem right either... I have the N26. Basically same as N20. Which do you have?
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12-01-2017, 07:24 PM	#32
drivef30 Lieutenant 111 Rep 463 Posts Drives: 17' 340i xDrive M-Sport Join Date: Aug 2017 Location: Michigan, USA iTrader: (2)	I hoping its because of the short trip and not reaching operating temp frequently. Car runs great otherwise. I will be doing a oil change next weekend and drain the OCC again and see the result from there on. Ps. Freezing oil catch can shouldnt be too much of an issue. Oil doesnt freeze to start of with, and the water would freeze inside the can but would not affect air flow unless your can gets super full like mine LOL. So dont worry about a heated can IMO
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12-02-2017, 06:31 AM	#33
jthoms1 New Member 5 Rep 29 Posts Drives: 2012 328i Join Date: Nov 2017 Location: Charlotte iTrader: (0)	So, I bought the BMS oil catch can and attempted install. What should have been an easy 30 min job for a shade tree mechanic turned into a debacle. I have a 2012 328i. First problem I ran into was the vent hose you disconnect to insert a reducer and attach to the can was brittle so it snapped. One hour drive and $62 later. While removing the aforementioned vent hose from its lower attachment point to the larger hose that attached to the airbox...one of the retaining clip points brokeon the large hose. I finally got everything back together and the can installed it was running rough and throwing a P107 code (I think)...it was the one indicating a an air leak in the intake system. Fortunately I just bought this thing as a CPO about 1.5 weeks ago and already have a 7:30 Monday drop off for them to fix the brakes. So, I removed the can...put it all back together and will have them investigate the code and discover the the other hose with the broken clip point that needs replacing. The question is...once I get it back will I dare to attempt install again? This was just a cautionary tale to others consider some issues they could run into on a simple mod....especially if your car is a bit older.
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12-02-2017, 02:00 PM	#34
drivef30 Lieutenant 111 Rep 463 Posts Drives: 17' 340i xDrive M-Sport Join Date: Aug 2017 Location: Michigan, USA iTrader: (2)	Any pictures of the broken parts? (I myself broke something in my install (pictures on the last page, and need to take my car in aswell). Let us know if they cover the repair for you under cpo
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02-18-2018, 07:24 PM	#36
vooonoo ¯\_(ツ)_/¯ 537 Rep 1,000 Posts Drives: f30 328 Join Date: Nov 2017 Location: nj iTrader: (0) Garage List 2014 f30 328i [0.00]	Do you guys end up having to top off the oil with these cans?
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02-18-2018, 07:37 PM	#37
sspade Major General 2465 Rep 5,457 Posts Drives: F30 Join Date: Oct 2017 Location: Stevenson, WA iTrader: (3) Garage List 2016 BMW 320i [7.87] 2014 BMW 328i [6.83]	Nope. I change my oil every 5k religiously and the oil loss is insignificant and within spec of the digital oil level meter. I suppose if you ran 10k intervals without emptying the can... you may risk overflowing / lowering the amount of oil in the crankcase to get an low oil warning.
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04-26-2018, 04:27 AM	#38
hmmwvj Private 11 Rep 62 Posts Drives: F30N 320i Join Date: Aug 2017 Location: MY iTrader: (0)	Does anyone have oil forced out of the catch can's threads and running down the side of the can? Also, the can is dry/empty and only smells of oil. I'm wondering if the 50 micron filter is too restrictive.
	Appreciate 0 Quote