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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 03-26-2013, 05:22 PM   #1
AngeloUCF
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Air filter question

I bought a new air filter on amazon and it came today, but has a different part number than what was printed on the old filter and it's a little bit longer as well.

Old filter PN: 13721730946
New Filter PN: 13721744869

I can probably squeeze it in but it's definitely a big more snug than I expected. I have an '04 330i Auto btw.

Can anyone tell me if the dimensions are supposed to be the same for these two filters? So if I return the amazon one and buy one an 046 it's not gonna be the same thing/fit? Otherwise I'll keep it. Thanks!
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Old 03-26-2013, 05:47 PM   #2
haurelio
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it should fit fine, just more snug, I had the same concern when i changed mine for the first time.
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Old 03-26-2013, 08:26 PM   #3
John in VA
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I had trouble when replacing my filter. Rather than putting it in the airbox and trying to fit the lid, I had better luck fitting the filter into the lid and then putting it over the airbox. Good luck!
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Old 03-26-2013, 08:37 PM   #4
AngeloUCF
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Thanks guys, I got it in after a little bit of force and I think it will be fine. Weird that there is 2 part numbers for what seems to be the same filter though.
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Old 03-27-2013, 03:43 PM   #5
kejobe
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Two different part #'s means two different parts...if the same manufacturer. If not, that's a different story and would need to cross-reference. Glad you got it to fit, just make sure it's sealed completely and it should be fine. If not you could suck up dirt into the motor.
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Old 03-27-2013, 09:36 PM   #6
haurelio
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Quote:
Two different part #'s means two different parts...if the same manufacturer
not always, some part numbers are changed/predecessor for a new number but same part.
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Old 03-27-2013, 10:30 PM   #7
kejobe
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Originally Posted by haurelio View Post
not always, some part numbers are changed/predecessor for a new number but same part.
EEhh, true.
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Old 03-28-2013, 09:37 PM   #8
John in VA
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For our 328i, there are 2 different filters, with different part #s, of course. Both are the same size, but one has a pre-filter layer of foam.
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