Bmw e46 fuel pump replacement bmw 325i (2001-2005), bmw 325xi (2001-2005), bmw 325ci (2001-2006), bmw 325ti (2001-2004) pelican technical article electricity generation by source


Comments: Can somebody tell me whats the blue and red 3 wire conector next to the fuel pump conector, they came from the same wiring but is not conected in my car i wonder why cause i replace my fuel pump for no fuel level shown in dashboard?

Comments: Hello Nick. Thank you very much for your help. There are not any fault codes, as I previously stated the main problem is that it will choose to intermittently quietly shut off as it come to complete stop this. This is usually just when you’re puttering around town. Dinner will be times that you’re idling at the airport or on the freeway and it May shut off or not. Tonight, LAX to spend the bumper-to-bumper traffic. Can we arrange to do an in person consul for? Do you work on these cars?

Followup from the Pelican Staff: I am not available to consult on vehicle sin person. If you require help, I would suggest finding a local BMW shop. You will have to determine which of three parts of combustion are missing when it stalls. – Nick at Pelican Parts

Comments: Hello and good day to you. I bought a 2003 325 CI. Shortly after I noticed it would just quit as I’ve come to is complete stop when just puttering around town. There is no noise or fanfare. It just quietly says I’m done. The engine and oil lights come on. It may take one or two restarts but it will. It did not throw any codes on the computer. A friend who is a BMW mechanic said it sounds like the fuel pump has received a short. This car has no troubles are on the open road and definitely not when the air conditioning is running, even if I am just puttering about town. Does this sound plausible to you? The friend further says that I need the whole tank replaced because it is sealed from the outside. Well I expected it sealed from the outside. Saw your post, but he still tells me how the whole thing needs to be replaced. With this model one that actually has a stainless tank like I saw on your previous post.? This friend is never said anything about the tank being stainless. Appreciate you very much

Followup from the Pelican Staff: I can’t help without knowing what is missing from the system when you are trying to start it. When your engine doesn’t start you’ll want to check the basics. Check spark, fuel injector pulse and fuel pressure, volume, quality and engine compression. Are there any fault codes? Once you figure out what is missing, it will be easier to diagnose.

Comments: I just bought a BMW 325 with a bad fuel pump. I’m being told that in order to make it work they need to replace the whole tank along with the fuel pump. Is hard to believe that this is a true statement. I need help to make a decision on approving this repair.

Comments: I do not know if there was fuel in the tank as I stopped with no fuel going to the engine and had to get a breakdown service to bring fuel to get to the nearest town. Are the fuel sensors that should be looked at on the fuel pump or in another place. If the sensors are in tank I could run fuel low and pump the rest of the fuel through the filter to see if there is fuel left when it does not pump any more fuel. I forgot to say that the fuel light works when ignition is turned on for a second or two.

Followup from the Pelican Staff: You may have an issue with the fuel level senders, that is if the correct fuel level is not being reported. Remove the senders and move them through the full range while monitoring resistance. Resistance should be high when full and low when empty. – Nick at Pelican Parts

Comments: Hi, I have a BMW E46 330Ci late 2002 convertible R.H.Drive that has a fuel problem. It ran out of fuel at 1/8 to 1/4 of a tank and the fuel light did not come on and the computer indicated it had 160K left in tank. Does this indicate that the vehicle needs a new pump and filter, or there is a problem with the syphon pump or the syphon pump hose has come unattached.

Comments: hi there, great article, I replaced the pump in 30 minutes, car fired right up, but now the fuel level is eratic, some sort of out of sync mode. how to reset/resync for proper fuel gage reading ??? reading all sort of threads on this common problem on new fuel pumps but no one seems to have the simple answer

Comments: I’ve purchased an M3 fuel tank baffle Part #: 16-11-2-229-656-BOE to install into my 330i as part of an effort to cure a bad fuel starvation problem on the track. The only pictures or info about this mod that I can find is what shows on the microfiche for the part… so once I get to figure 14 of this writeup, I’ll basically be on my own. I’m pretty dumb, so any links or advice or whatever would be hugely appreciated.

Ever since last week my 330i e46 almost stopped on the highway without fuel while the gauge still displayed almost a quarter tank and range said 100km. I live in Europe and has alway put 98 octane in the car. I took out both fuel sending units with the hope to clean something but they are spotless. How could I know which one is failing if not both? Everything in the tank is spotless and clean

I have a 2004 Bmw 325 {WBAAZ334X3PH32755 that i need to replace the fuel pump but i couldn’t remove the pump because is attach inside the fuel tank and if you want to remove the pump you have to open the tank into two.Please is there another way out.Thanks.

Comments: Comments for figures 13 and 14 leave a lot to be desired for the first time novice installer. It should be emphasized in figure 13 that a thin hard o ring remains on the tank opening, and that the soft multifaced sealing ring shown in figure 14 is not just installed on the pump, but must be also carefully guided into the hard o ring and pushed hard so locking ring can thread.