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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Microfilter replacement



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      03-01-2011, 03:13 PM   #1
Romanian nightmare
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Post Microfilter replacement

So i got a quote from the dealer for about $150 to replace the in-cabin microfilter. It sounded a little steep so i started to look at this forum for DIYs on this. Found a few and i'm ready to tackle the job. My question here is should i buy the actual OEM part # 64 31 9 142 115 or go with what sounds to be a replacement copy from Amazon or other on-line discount car parts. The price difference is only about $20, but i don't know what this will do from a reliability stands. Has anyone used a "copy" and had success? Just curious what you guys think!
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      03-01-2011, 03:40 PM   #2
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Do you have a link to the one on amazon? I can't find one on there for the E9X. If the aftermarket is a carbon filter (not just paper) then I MIGHT consider trying it. That is only if there have been positive reviews on the product already. In the end, a filter isn't really that hard to make, so an aftermarket one could very easily be just as good as OEM.
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      03-01-2011, 04:04 PM   #3
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Quote:
Originally Posted by fisherbln View Post
Do you have a link to the one on amazon? I can't find one on there for the E9X. If the aftermarket is a carbon filter (not just paper) then I MIGHT consider trying it. That is only if there have been positive reviews on the product already. In the end, a filter isn't really that hard to make, so an aftermarket one could very easily be just as good as OEM.
Here is the link...and after looking some more, it appears that this is not a carbon filter, but rather just paper....

http://www.amazon.com/TYC-800115C-3S...ar=1&carId=001
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      03-01-2011, 07:22 PM   #4
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Did you try Tischer? I don't think the filter is that expensive IIRC. I'd be cautious about using an aftermarket filter. The filter element snaps into the filer cover (which is what you remove to get to the filter). If the aftermarket filter does not eaxctly fit the cover, it may lead to an improper fitting of the cover when placed back on the car. If the cover does not filter properly, it can lead to water leakage into the blower housing and eventually damage the blower motor.
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      03-01-2011, 08:25 PM   #5
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micro filter

You can get the OEM original filter at Bavarian Autosport. www.BavAuto.com
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      03-01-2011, 10:38 PM   #6
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I got a tune up kit from tischer. It was 7 quarts of oil, oil filter, seals, crush washer, air filter, and and microfilter.

I can't remember what I paid but it was around $100 I think.
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      03-02-2011, 12:02 AM   #7
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If you look at the bottom of that Amazon link "Customer Also Viewed This Item" ...it has a link to a charcoal filter:

http://www.amazon.com/Hengst-Activat...=pd_sbs_auto_1
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      03-02-2011, 05:28 PM   #8
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what did you use for a search criteria to find the DIY? I can't find any, and have a can of ozone to spray in there.
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      03-02-2011, 05:31 PM   #9
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Never mind, wrong forum searching.
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      03-03-2011, 09:49 AM   #10
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I got my microfilter from amazon, it was made by Mann Filter, which is the company who makes the OEM one.

http://www.amazon.com/gp/product/B001DRHMMS
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      03-03-2011, 12:28 PM   #11
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Quote:
Originally Posted by axis View Post
I got my microfilter from amazon, it was made by Mann Filter, which is the company who makes the OEM one.

http://www.amazon.com/gp/product/B001DRHMMS
Ok so after some more research and all your input, i went ahead and ordered this filter. I'll let everyone know how it goes....
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      03-03-2011, 03:27 PM   #12
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Quote:
Originally Posted by axis View Post
I got my microfilter from amazon, it was made by Mann Filter, which is the company who makes the OEM one.

http://www.amazon.com/gp/product/B001DRHMMS
Ordered this as well...thanks!
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      03-03-2011, 04:58 PM   #13
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how often should this be replaced
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      03-04-2011, 03:21 PM   #14
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Quote:
Originally Posted by MrSkinny View Post
how often should this be replaced
It's in the "computer" i think the icon is a thing that looks like a filter with an A/C fan blade icon in the corner.
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      03-04-2011, 03:27 PM   #15
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Quote:
Originally Posted by Perfectus View Post
It's in the "computer"

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      03-04-2011, 08:22 PM   #16
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thanks for link, I just bought this too
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      03-04-2011, 10:26 PM   #17
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Got the Mann-Filter on amazon and it fits fine and works fine. Installation is cake.
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