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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 09-21-2013, 06:06 PM   #1
augustus maximus
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Join Date: Aug 2013
Location: Connecticut
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Fuel Pump

It seems the the fuel pump is the bane of the Bimmer, so instead of blowing money on another flakey OEM crap, I threw a Walbro 255 I had sitting around in there. What a difference. No point in taking out crap and putting crap , I mean time bomb back in.
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Old 09-21-2013, 07:44 PM   #2
White_Knuckles
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An average of 75,000 miles for a pump isn't exactly a "time bomb" in my opinion, but glad you're happy.
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Old 09-23-2013, 07:45 AM   #3
bikesandcars
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Quote:
Originally Posted by augustus maximus View Post
. What a difference.
What a difference in what?

Cost, quality, installation, driving (smoothness, performance), ?

If there are no pictures it didn't happen
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Old 09-23-2013, 01:15 PM   #4
SeattleLSB
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Buy the OEM VDO for $125 and replace it ever 100k. I would hardly consider $125 as flakey.

Joe
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Old 09-23-2013, 01:19 PM   #5
SamDoe1
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Quote:
Originally Posted by SeattleLSB View Post
Buy the OEM VDO for $125 and replace it ever 100k. I would hardly consider $125 as flakey.

Joe
^ This.

If you are going to install something else, you should have put in this one:
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Old 09-23-2013, 01:56 PM   #6
augustus maximus
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Quote:
Originally Posted by bikesandcars View Post
What a difference in what?

Cost, quality, installation, driving (smoothness, performance), ?

If there are no pictures it didn't happen
Oh yes it did...I wrapped it in a 2inch silicone coupler, cut a gap in the sleeve that held the original pump and clamped it at the top with a stainless steel worm clamp. Smoother acceleration especially in the top end and better start up. I'll take a pic when I swap the pump gasket.
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Old 09-23-2013, 02:06 PM   #7
augustus maximus
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This pump came out of my boosted 300zx, running 460cc injectors effortlessly. It's cheaper, more reliable and better flow. OEM pump not only kills itself, it takes the relay with it.
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Old 09-26-2013, 04:55 PM   #8
SeattleLSB
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Fuel Pump

Reliability is subjective.


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2007 TiAG/BLK 335I Sedan/6SP/Sport/Premium/Cold Weather - Sold

2003 AW/BLK 330XI/AT/Sport/Premium/Cold Weather
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Old 09-26-2013, 05:14 PM   #9
shadow 2
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Originally Posted by SeattleLSB View Post
Reliability is subjective.


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Not really.
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Old 09-28-2013, 12:20 AM   #10
E46_S14
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Quote:
Originally Posted by augustus maximus View Post
This pump came out of my boosted 300zx, running 460cc injectors effortlessly. It's cheaper, more reliable and better flow. OEM pump not only kills itself, it takes the relay with it.
I ran a walboro with my SR'd S13 and it was supported 352whp beautifully. So I didn't hesitate for a second having it pump fuel to my KA-t in my S14. However since I don't know these cars so well I probably will just do my research and follow the e46 gurus lol.

Quote:
Originally Posted by SeattleLSB View Post
Reliability is subjective.



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+1 subjective to how the owner treats it. I've seen top quality "name brand" parts snap, blow and break faster than the cheapest stuff on ebay due to neglect and abuse.

Last edited by E46_S14; 09-28-2013 at 12:20 AM.
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Old 09-29-2013, 08:19 PM   #11
augustus maximus
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Ordered new seals and locking rings because mine look so Gotdamn crusty, which I cannot understand. I have a 27yr old car that is aging better than this. Anyway I'll takes pics when I get these install this week. Personally I have no fear in putting a different pump in there, so far it works and I recommend it all day.
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