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BMW 3-Series (E90 E92) Forum
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Fuel filter, when to change?
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08-13-2008, 02:11 AM | #2 |
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I would have the dealership replace it before the warranty goes up. It really depends on your habit of filling up your car. If you let the gas tank go to one or two gallons left before filling up....then you need to replace it more often than if you fill at a 1/4 of a tank. Running on an empty tank is not all that good on a fuel injected car compared to a carb...one.
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01-26-2009, 08:58 AM | #4 |
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I am interested in keeping my 325xi in top running order. It has 32k miles and is set to turn 4yrs in Nov 2009.
Bavauto recommends changing out the fuel filter every 3 years. Is replacing the filter something that the average garage mechanic can do? How much is the filter? Roughly, how much does dealer charge for labor to replace the filter? Is the fuel filter part of the fuel pump? Thanks Wallyf |
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02-01-2009, 01:12 PM | #5 |
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iirc, the fuel filter is something like $180 USD. It isn't cheap, and there isn't a set interval on changing it. The filter is considered 'lifetime' by BMW, except that lifetime just means until the part fails.
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04-29-2009, 12:09 PM | #7 |
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The fuel filter is in the tank and costs $180 for the part and probably 2 - 3 hours for labor to install. So you are going to change your fuel filter every 30K miles for $400? The filter won't fail. It would at worst case get clogged enough to make the engine starve of fuel and you would notice a lack of performance and it would go into limp home mode, but it wouldn't leave you on the side of the road.
Cars used to have hand cranks to start the engine until Cadillac introduced the electric starter. Why is it that people on this board can't get their head around that as technology progresses, things (like maintenance intervals) change. One of the reasons BMW's are expensive is becuase they are well (some times over) engineered. From that engineering comes things like lifetime fuel filters. |
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04-29-2009, 08:21 PM | #8 |
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Sad thing is that car technology hasn't changed that much since the electric starter. You still need oil, filters, belts, and spark plugs. Biggest changes are all the electronics. It's one thing to compare an electronic starter to a hand crank, it's another thing to say that transmission fluid or fuel filters last a "lifetime". A clogged fuel filter can cause internal engine damage if you're running too lean.
http://www.mobiloil.com/USA-English/...lter_Swap.aspx I also don't believe in 17,000 mile oil changes. If BMW really believes in "lifetime" fluids and filters, then they should give me a lifetime warranty. |
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04-30-2009, 11:55 AM | #9 |
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The modern day engine has a computer controlled combustion process, with O2 sensors and knock sensors. If the engine were to start running lean the ECU would send it into limp mode to avoid internal damage because of a lean condition.
I was looking around on the BMW TIS site a few weeks ago and found a procedure to add an external fuel filter to the E90 fuel system. I haven't seen the part anywhere on any BMW parts websites, but the additional fuel filter is meant for places in the world where the fuel quality is questionable (the part may not be on the US parts list). If you are concerned about the fuel filtering process on the E90, you may want to look into adding the auxillary fuel filter to your car. The procedure was pretty straight forward. Remove the rear seat. Open the access cover to the fuel tank (it's there to facilitate a fuel pump replacement). Remove one fuel line and replace it with the auxillary fuel filter. |
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04-30-2009, 12:06 PM | #10 | |
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Nevermind, after looking at realoem, I now remember seeing the access cover to the fuel tank under the rear seat. I don't know how difficult it is to open the fuel tank access cover but it is good to know if I ever need to mes with fuel tank.
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04-30-2009, 05:06 PM | #11 | |
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Quote:
http://www.e90post.com/forums/showthread.php?t=3804 |
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05-01-2009, 11:16 PM | #13 | |
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Wow, 293,000 miles on it? That's amazing. But I'm sure you replaced the fuel filter on that thing by now. I love E30s too. But I gotta say, all my friends with E46s have nothing but problems after the 100,000 mile mark. They followed the BMW maintenance routine. |
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05-02-2009, 07:20 AM | #14 | |
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Having both since new, and doing all the maintenance myself (except the two oil changes and a brake flush I got from BMW for the E90) I'd say at 80,000 both cars are pretty equal in reliability to this point. I've changed the brakes, coolant and diff oil in the E90 at 75,000 and will do the trans oil as soon as I can get the right lube (MTF-LT-3) In my opinion we've kept the car too long. I mean even a BMW can get a bit long in the tooth after 20 years of ownership. |
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05-02-2009, 07:49 PM | #15 |
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Lol, yeah. I would have to say any car after 10 years tend to become money pits. But the E30 is a classic. Even though it's an old car, I always stare when I see a good one on the road. I thought about buying a used one before.
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05-03-2009, 07:38 AM | #16 |
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If you do, try and get a '89. IMO it was the best year. The 325i had the '88 325is M20 engine, european-like bumpers (instead of those gaudy 5 MPH ones) and no air bag (changed in 1990).
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05-06-2009, 10:43 AM | #18 |
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Save your money, unless you plan to keep the car to 200K changing all the fluids and filters unnecessarily serves no purpose. Auto trans fluid changes are probably the biggest waste.... unless you drain the torque converter only about 40-50% of the fluid actually gets changed.
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05-06-2009, 11:19 AM | #19 |
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There is no procedure in the TIS to replace a E90 fuel filter other than the one in the tank. RealOEM doesn't show a P/N for a E90 fuel filter other than the one in the tank. The part you are talking about is for the 2006 E46 325iC which was the 2006 3 Series coupe. The E91 Coupe didn't come out until 2007 model year. Get your shit straight.
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05-17-2009, 07:44 PM | #20 |
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How did you change the diff oil, as I understand it they do not have a drain bolt? I have heard about possible sucking out the fluid but have not seen any details and would be interested in your procedure.
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05-17-2009, 08:03 PM | #21 | |
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When I do it again I will also get a new drain plug. Both the drain and fill plugs have an attached seal that appears to be intended for one time use. Edit: search for PN 83 22 7 533 818 |
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05-24-2009, 06:55 AM | #22 | |
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I use a pneumatic powered oil evacuator I got from Harbor Freight. It comes with several lengths and diameter plastic tubes and brass straight tubes. I modded one of the brass pickup tubes to get all the oil out. I cut the tube to about 6 inches then bent it 90 degrees so it slides in the fill hole and sits at the bottom of the diff housing. Pull all the oil fluid out then refill with new diff fluid till it dribbles out of the hole. Then re-install the fill plug. Last edited by ENINTY; 05-24-2009 at 07:14 AM.. |
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