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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 07-14-2016, 03:55 PM   #1
Exactoll
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fuel filter replacement

thought some of you would be pleased to know that my factory installed fuel filter will soon be replaced with a $17 chinese one.

i debated whether to go the $65 route, but since the old factory brand had lasted 17 years without change there essentially was no comparing no filter to a cheap filter.

now all i have to reconcile is how to swap out the regulator ($404) with something more affordable. any hints as to what might fit the bill. it looks completely rusted out, but for 400 bucks it should be made out of diamonds.

i'd show you the pic but this ting won't let me upload direct to the site.
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Old 07-14-2016, 04:22 PM   #2
mleindek
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Why not just buy OEM or OE? Try www.fcpeuro.com, got mine for $40ish.
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Old 07-14-2016, 04:32 PM   #3
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RM Euro sells Kayser filters (which are OE on some E46s, my past ZHP included) for under $40. I don't know if it's expensive to ship to Canada, but it's really not all that expensive to get a good one.
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Old 07-14-2016, 05:00 PM   #4
Knight
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It's $50 for the correct part, so the savings are minuscule for trying out an unknown filter.

Also, with the E46, the fuel pressure regulator is built into the fuel filter. Which "$404 regulator" are you referring to?
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Old 07-14-2016, 06:26 PM   #5
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You all seem to be forgetting that the early models had regulators separate from the filter. The filter itself itself is only about $20: https://www.fcpeuro.com/products/bmw-fuel-filter-kl66

I don't think the regulators tend to have issues, but if you want to replace it, they certainly don't cost $404: https://www.fcpeuro.com/products/bmw...or-13531729319
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Old 07-15-2016, 03:57 PM   #6
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the part i referred to is this listing on ebay. i've checked with a number of other resources and they are similarily as expensive. the state mine is in presently would obviate replacing the whole shebang. my 99 323i's thingie, as arcan stated, is separate from the filter. at this point, it may still be working but since it's been stored for a few years it may not function properly under road conditions. if it does indicate replacement, 400 bucks seems a mite steep. there has to be another make's part i could use instead.
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Old 07-15-2016, 04:04 PM   #7
mr ilia
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You are in Canada, you should have a look at rockauto.com, this the best website to order maintenance and other parts with shipping to Canada.
Fuel filter for your car is a out 20.00 CAD abd FPR is about 50.00 CAD for the name brand parts.
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Old 07-18-2016, 09:47 AM   #8
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Quote:
Originally Posted by Exactoll View Post
the part i referred to is this listing on ebay. i've checked with a number of other resources and they are similarily as expensive. the state mine is in presently would obviate replacing the whole shebang. my 99 323i's thingie, as arcan stated, is separate from the filter. at this point, it may still be working but since it's been stored for a few years it may not function properly under road conditions. if it does indicate replacement, 400 bucks seems a mite steep. there has to be another make's part i could use instead.
That part is for the E36, not the E46 you have.

1998/1999 was the production overlap between the end of the E36 era and the start of the E46 one.
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Old 07-19-2016, 12:46 AM   #9
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it's there. 1999 m52tu north america 323i..
https://postimg.org/image/xs32luecx/

Last edited by Exactoll; 07-19-2016 at 12:47 AM.
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Old 07-19-2016, 08:43 AM   #10
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Ah, okay then. It's odd because several sites do not list a fitment for the E46.

Here's an OE BMW option from a well-known vendor for $342:

https://www.ecstuning.com/b-genuine-...e/13311740281/

Last edited by Knight; 07-19-2016 at 08:45 AM.
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Old 07-19-2016, 12:33 PM   #11
Exactoll
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Quote:
Originally Posted by Knight View Post
Ah, okay then. It's odd because several sites do not list a fitment for the E46.

Here's an OE BMW option from a well-known vendor for $342:

https://www.ecstuning.com/b-genuine-...e/13311740281/
well, that's the thing. i'm looking to replace the FUNCTIONALITY of the part without the extraordinary cost. is there any known part in the automotive world which serves the same purpose for mucho cheapo? seems to me if anyone knew the numbers for this peculiar beast one could adapt the known universe to those designed-in parameters.
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Old 07-19-2016, 02:42 PM   #12
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Since you are going for el cheapo, type pn 13311740281 in ebay. I saw a couple of them in 1000 times better shape than yours below $50.
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Old 07-19-2016, 06:21 PM   #13
Exactoll
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Quote:
Originally Posted by dslboomer View Post
Since you are going for el cheapo, type pn 13311740281 in ebay. I saw a couple of them in 1000 times better shape than yours below $50.
haha, anything would be better than what mine has turned into. should i find anything i might not feel bad replacing it.

as it is, thinking it's f*d up, what are the symptoms /fault codes that i might sense? i just got a bluetooth ELM327 obd2 sender. up to this point it doesn't tell me much. cross my fingers and move on?
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Old 07-19-2016, 08:35 PM   #14
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Probably check the vacuum lines running to the fuel pressure regular first, and check the pressure at the rail. You don't hear much of them going bad, I would be included to find an OEM one used (over eBay crap) if you are cheaping out.

If you have proper pressure at the rail, and the seals haven't failed and dumping fuel through the vacuum line into the manifold, should be okay.
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Old 07-19-2016, 09:04 PM   #15
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Check the electric functions on your existing one first - if ok you can just replace the regulator. You can get the fuel pressure regulator shipped from Canada for your car made by Pierburg (OE) for $90 - free shipping if you spend $10 more.

1999 323i Fuel Pressure Regulator in Canada

Also the Hengst Fuel filter for your car is less than $20 USD here in Canada so I don't know why you have to buy Chinese cheapo???

Hengst Fuel Filter for e46 323i under $20 US

Both of the above for $110 CDN ($90 USD) and free shipping
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Old 07-19-2016, 09:14 PM   #16
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He needs a 3/2 valve and whole thing.

This one is from 98 Z3.
Looks pretty good with good price.
Had hard time finding back even with part number.

http://www.ebay.com/itm/98-BMW-Z3-M-...p2352135.l4275
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Old 07-20-2016, 07:08 PM   #17
Exactoll
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not sure, outside of the rusty ugliness of the various and sundry components within this assembly, that i need any replacement. is there an android app that would spit out reliable fuel pressure data for the system i could get off the obd2 ELM327 thingy? using the app 'Torque lite' it tells me the fuel trim is a wee wonky for #1 sensors for both banks. not sure how wild the trim should be. as far as i know anything off 0 is bad. ... but what do i know? i've got the pre-filter air nozzle disconnected from the port leading to in front of the rad. is the MAF having difficulty with this "non-factory" situation? (so much so that it's got me chasing fairies?)
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Old 07-20-2016, 07:17 PM   #18
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Quote:
Originally Posted by BKMrSteel View Post
...

If you have proper pressure at the rail, and the seals haven't failed and dumping fuel through the vacuum line into the manifold, should be okay.
i may have to hook invest in a pressure gauge for the rail's shrader valve. all in all after emptying the 2 year old gas in the tank and replacing it with ultra94 i've run into the same "resonant humming" at around 2000rpm at running temperature.
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Old 07-21-2016, 07:46 AM   #19
mr ilia
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May be I missed, but what are the symptoms that tell you need that expensive part?
I've been through many BMW and read on many more and I do not think I have seen any ones with a bad unit.
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Old 07-21-2016, 07:00 PM   #20
Exactoll
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Quote:
Originally Posted by mr ilia View Post
May be I missed, but what are the symptoms that tell you need that expensive part?
I've been through many BMW and read on many more and I do not think I have seen any ones with a bad unit.
as of today that unit's off my list. set a gauge onto the fuel rail: 46psi just sitting with the fuel pump energized, 55psi started, warmed, & constant 2-3k rpm. rock solid.

if it aint broke....
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