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2Addicts | BMW 2-Series forum Technical Topics Mechanical Maintenance and TSBs: Break-in | Oil & Fluids | Servicing | TSB Small green O-ring on oil filter housing cap size/part #

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      09-24-2025, 04:20 PM   #1
John in VA
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Small green O-ring on oil filter housing cap size/part #

I can find the part # & dimensions for the E46 and E39 application but not the single green O-ring on the cap for the N20-powered 228i. Does anyone know?
Thanks!
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      09-26-2025, 07:16 AM   #2
MarcoZandrini
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Go to www.realoem.com and enter the last 7 characters of the car's VIN. Hit enter and bookmark the page. Click on engine and scroll down to find the oil filter.
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      09-26-2025, 10:07 AM   #3
John in VA
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Quote:
Originally Posted by MarcoZandrini View Post
Been there, done that - I've used realoem.com, bmwfans.info & bmw.7zap.com for decades which are very helpful. Not in this particular case though. For the F22 & F30 they show:



and




For the E46 & E39 you get the following, with #5 being O-ring, 7X2,5 (2 needed) - part # 11427549573:

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      09-28-2025, 09:46 PM   #4
nazali
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the o ring comes as part of the oil filter, you get 2 o rings, small and big and a crush washer,
at least on the 1 & 2
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