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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 06-24-2016, 11:23 AM   #1
tehdricd
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Fuel pump leak

2004 325i m54 engine.

The dreaded fuel smell after pumping problem with evap code and gas cap light!
I finally checked my senders after pumping and saw fresh fuel over my right sender. The pump works fine and I have no issues with low level fuel or starting up. Should I just replace the gasket or the whole system just to be safe. I believe its still the original pump...

Any opinions?
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Old 06-25-2016, 07:57 AM   #2
tehdricd
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Wow just realized that bimmerfest and e46Fan are totally different forums.. guess I will use this more
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Old 06-25-2016, 08:11 AM   #3
markusmarkus
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Replace the gasket. It should be done whenever the pump is replaced.
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Old 06-25-2016, 08:16 AM   #4
tehdricd
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Thanks for replying man. Yeah, I ended up ordering the pump and gasket. Planning on replacing both just to be safe and save myself a headache in the future.
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Old 06-25-2016, 08:59 AM   #5
Solidjake
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VDO/siemens brand pump?
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Old 06-25-2016, 09:03 AM   #6
tehdricd
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yessir. I got in touch with the previous owner and he did not replace the fuel pump before sale. So I wanted to make sure my replacement would last while I fix up other problems. Isn't the siemens OEM?
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Old 06-25-2016, 09:10 AM   #7
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Yup. It's an easy job
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Old 06-25-2016, 09:17 AM   #8
tehdricd
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sweet, thanks man. hopefully, the evap leak and fuel smell go away after!
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Old 06-29-2016, 05:53 PM   #9
tehdricd
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Just delivered!
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Old 06-30-2016, 04:52 AM   #10
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Looks like the float arm is properly pressed into the plastic tab on the pump so you're good to go (small issue that happens sometimes so the fuel level reading is off when the float is not mounted properly)
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Old 06-30-2016, 06:59 AM   #11
tehdricd
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Just switched the old pump out. dont know if you can see it, but the original leaky gasket was installed upside down. Hahahaha oh man. Now I have a genuine used pump.. scrap?
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Old 06-30-2016, 07:00 AM   #12
Solidjake
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What's the mileage on it?
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Old 06-30-2016, 07:00 AM   #13
tehdricd
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Also, any idea what this rogue wire is? It was just chilling there when I took off my seat
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Old 06-30-2016, 07:01 AM   #14
tehdricd
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Quote:
Originally Posted by Solidjake View Post
What's the mileage on it?
158k, thats about used up if I understand correctly
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Old 06-30-2016, 07:27 AM   #15
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Meh, risky but just keep it in the house as a spare. The wire is just when the car was being delivered.
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Old 06-30-2016, 07:33 AM   #16
tehdricd
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Ohh ic ic. And yeah pretty sure that pump is not going to last that much longer. thanks man for all your help. going to see if this evap code is over and done with now
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Old 06-30-2016, 07:44 AM   #17
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Looking to hear how it turned out
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Old 06-30-2016, 08:45 AM   #18
tehdricd
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So far so good. Fueled up to 14 gallons. The fuel meter reads 1/1 and there are no fumes, only ran for about 20miles, but there was no extra fuel loss like before. No gas cap light. Looks like all is good!
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