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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 08-25-2013, 11:49 PM   #1
FordTruck325xiGuy
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Question Fuel Filter Maintenance with pictures please.

Being new to this forum I searched my ass off so as not to get yelled at by people who do that sort of thing. Funny how they never actually answer OP questions though...anyways...

I just bought a 2001 325xi with 135K on it. The yellow oil light was on and the sunroof decided to close only after about 5 tries each time. I lubed the roof tracks and fixed that. I got a new Oil Level Sensor and replaced that. Then the 2ndary air pump howls on startup but for $300 I can live with it until I have no choice. My question after all this is how do I replace the fuel pump/filter and where the heck are they? Again...I have searched and found info but no repair videos/pictures showing replacement of these parts. Last thing...when I hit the gas there as a short lag before the car goes. Is there a tuning chip I can get to adjust the mix on the stock tune and maybe move the shift points a bit for better torque? I'm not getting a CAI or any other $$$$ mods. Sorry for the length but after a couple weeks of tinkering with my new toy, questions arise.
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Old 08-25-2013, 11:54 PM   #2
Iggy27
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Fuel Filter Maintenance with pictures please.

Fuel filter is under the drivers side door pretty much


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Old 08-25-2013, 11:55 PM   #3
Iggy27
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Fuel Filter Maintenance with pictures please.




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Old 08-26-2013, 12:46 PM   #4
FordTruck325xiGuy
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Yeah, that shield and it's two mates were the first to go! Until I see snow they remain off too! Nice video btw. Have you got any 411 on the pump? On one model it's under a seat? Really? On my truck I believe its built into the sending unit on the tank itself. Dunno 4 sure as it's still working after 115K. There has to be a Chilton's or Haynes manual for this car. Time to search Amazon.....
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Old 08-26-2013, 12:59 PM   #5
SamDoe1
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Quote:
Originally Posted by FordTruck325xiGuy View Post
Yeah, that shield and it's two mates were the first to go! Until I see snow they remain off too! Nice video btw. Have you got any 411 on the pump? On one model it's under a seat? Really? On my truck I believe its built into the sending unit on the tank itself. Dunno 4 sure as it's still working after 115K. There has to be a Chilton's or Haynes manual for this car. Time to search Amazon.....
The pump is under the seat, just pull up the seat bottom to get at it.

Chilton and Haynes manuals are great for your Ford truck but just use the DIY section of this forum for your car, it'll be much better for you.
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Old 08-26-2013, 01:02 PM   #6
ixtoxi
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The fuel pump/sending unit is under the back seat on the passenger's side. Very easy to access and very easy to replace. Just pull up the bench seat and you will see the electrical connectors to the pump, which is under the circular cutout in the sheet metal.
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Old 08-26-2013, 01:13 PM   #7
yetiinimolazhp
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The fuel pump can be accessed through a port under the rear seat.

You may want to reconsider your decision to leave off the shielding, FordTruck.
I would leave it on. Debris/road junk jumping up to smack fuel lines in a vulnerable spot could put you out of commission and possibly create a hazardous situation.
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Old 08-26-2013, 10:21 PM   #8
jmo69
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My Ride: 03 325xi 98 328is
Year: 2003
Model: 325xi
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Just did the fuel pump and filter on mine a few weeks ago. If the pump is still working why replace it? If not get an OEM replacement VDO, $167 at FCP Euro and $56 for the filter. Get 7 new hose clamps and a foot of 5/16" fuel injection hose so you can cut the filter out and replace the short hoses and one way clamps. I think BMA parts has that pump for less with free shipping and they are on the west coast and FCP is on the east coast so for me shipping times are about the same. http://www.bmaparts.com/ShopByVehicl...l+Pump&mode=PA
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Alternative to expensive xi control arm bushings https://forum.e46fanatics.com/showthread.php?t=1231503

Bad outer xi ball joint? https://forum.e46fanatics.com/showthread.php?t=1127077


2003 325xi auto Stahlgrau

1998328is 5sp

Last edited by jmo69; 08-26-2013 at 10:23 PM.
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Old 08-27-2013, 08:29 AM   #9
Arnezie
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When changing the fuel filter just make sure you pay attention to the inlet and return line orientation before removing them, Trust me its easy to switch them around.
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Old 08-27-2013, 05:06 PM   #10
FordTruck325xiGuy
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I'm going to change the filter but I still giddyap at almost empty so that tells me the pump is still good. I'm reading that failing pumps are acting like an empty tank at 1/4 on the gauge. Fill 'er up and zoom again I read.
On the ...brighter... side, I got a bunch of LED bulbs and the replacement lenses for the headlights, as well as the new fog, corner, and side blinkers. Nice cobalt blue for the back-ups. If I use an LED bulb in the front corner I get the fast blinker due to the voltage difference (or lack of). Can I get an LED capable blinker relay like I did for my truck or do I need an inline resister? or both? Also thinking of HID's but from what I've read I think I'll pass. I kinda like the big bug-eyes on my bimmer! Easy to adjust too but a PITA to change the bulbs. Dirt and crumbs eeverywhere when I cracked open the PS HB. A little old lady and the single owner had this before me. Can't imagine she was muddin!
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Old 08-27-2013, 08:39 PM   #11
jmo69
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My fuel pump failed pretty much without warning. It's my wifes car and after it failed she told me she had some hesitation about a week before and when it did die it hesitated and then quit. It would start but just barely and then die. There are actually two pumps in the tank, the main and the one that pumps from the drivers side to the passenger side. The fuel return line flows to the drivers side so if that pump fails the car will not get fuel when the passenger side of the tank is empty. That might be a reason for the car not working well when the tank is low. I like LEDs too but I'm not sure how they'd work in your front corners. There is only one wire and filament in the stock bulb, and the car controls voltage to make it flash so under reduced power for parking light the LED might not work.
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Alternative to expensive xi control arm bushings https://forum.e46fanatics.com/showthread.php?t=1231503

Bad outer xi ball joint? https://forum.e46fanatics.com/showthread.php?t=1127077


2003 325xi auto Stahlgrau

1998328is 5sp
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Old 08-27-2013, 08:44 PM   #12
dgknight
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Mine failed 240 miles from home on a Sunday afternoon with no warning (and an almost full tank of fuel). AAA's 250 mile free towing (expensive membership level) was not worth a darn because nobody was willing to tow me that far until the next morning.

Luckily the old hammer on the fuel tank trick worked and I got home (without shutting the car off once - thank goodness the tank was full).
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Old 08-28-2013, 12:10 PM   #13
FordTruck325xiGuy
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Hammer on the fuel tank....funny stuff!
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Old 08-28-2013, 01:59 PM   #14
SamDoe1
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Quote:
Originally Posted by FordTruck325xiGuy View Post
I'm going to change the filter but I still giddyap at almost empty so that tells me the pump is still good. I'm reading that failing pumps are acting like an empty tank at 1/4 on the gauge. Fill 'er up and zoom again I read.
On the ...brighter... side, I got a bunch of LED bulbs and the replacement lenses for the headlights, as well as the new fog, corner, and side blinkers. Nice cobalt blue for the back-ups. If I use an LED bulb in the front corner I get the fast blinker due to the voltage difference (or lack of). Can I get an LED capable blinker relay like I did for my truck or do I need an inline resister? or both? Also thinking of HID's but from what I've read I think I'll pass. I kinda like the big bug-eyes on my bimmer! Easy to adjust too but a PITA to change the bulbs. Dirt and crumbs eeverywhere when I cracked open the PS HB. A little old lady and the single owner had this before me. Can't imagine she was muddin!
lol wut?

For LED anything you will need inline resistors. The turn signal is computer controlled, not relay controlled so getting a new relay means getting a new computer program for your lighting control module (LCM). If you don't use resistors in the turn signals, brake lights, tail lights, and head lights you will get a bulb out error or some other issue. Again, not a Ford truck so don't think in the same mindset.

HID's can be retrofitted and the easiest way to do it is go through theretrofitsource.com. They sell a kit that allows you to retrofit the projectors, trim pieces, ballasts, bulbs, and ignitors for the HID system to your existing headlight housings for about $300-$350. Don't buy the cheap Depo headlights as they are total shiit.

I'm not sure where you got dirt and crumbs or what a PS HB is... Also not sure who in their right mind would take this car muddin'...

I also have a Ford truck, it's a night and day difference between the two of them. The BMW is entirely computer controlled, the Ford is all mechanical and relays. Not to mention a new shock absorber for the truck is ~$36 a corner whereas the BMW is $200.
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