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BMW 3-Series Fuel Pump Failures

51 messages,  Last post on Feb 16, 2013 at 2:31 PM

You are in the BMW 3-Series Forum.

What is this discussion about? BMW 3 Series, Sedan, Wagon

Messages Page 5 of 5

#41 of 51 Re: Fuel pump locater in 2004 bmw 325ci [kyfdx] by MrShift@Edmunds HOST

Aug 07, 2011 (8:02 pm)

Replying to: kyfdx@Edmunds (Aug 07, 2011 3:45 pm)
says here if its the M54 engine you can replace it but if it's the M56 engine you have to replace the entire fuel tank. You cannot replace the pump by itself.
 
Here's the scoop on the M56...maybe you can figure out which engine you have (M56 is SULEV, sold in CA, NY, MASS and VT, 2003--2005 only, automatic transmission only.

#42 of 51 Re: Fuel pump locater in 2004 bmw 325ci [Mr_Shiftright] by roadburner

Aug 07, 2011 (10:02 pm)

Replying to: MrShift@Edmunds (Aug 07, 2011 8:02 pm)
Enter the last seven digits of the VIN into the online ETK at realoem.com; that will tell you whether it's an M54 or M56.

#43 of 51 Re: Fuel pump locater in 2004 bmw 325ci [roadburner] by MrShift@Edmunds HOST

Aug 08, 2011 (8:45 am)

Replying to: roadburner (Aug 07, 2011 10:02 pm)
nice tip! Thanks for posting it. Geez, replacing the entire fuel tank---that's a drag.

#44 of 51 97 328i Fuel Pump Failure? by tsaputoj

Mar 08, 2012 (8:00 am)

My 97 328i has 240K miles, I was going 65 on the freeway when I lost power and lucky got across 3 lanes of traffic to an exit. When it came to a stop, I tried to start it but it wouldn't turn over. I was real low on gas, so i put a couple of gallons in it and nothing. Everything lights up and the starter is working but it just won't turn over. Based on reading these past post it might be my fuel pump. Is there anything else I should check before jumping to that? I live in Colorado does anyone have an ideal on cost in my area, so that I don't get over charged!
 
Thanks for your help.

#45 of 51 Re: 97 328i Fuel Pump Failure? [tsaputoj] by MrShift@Edmunds HOST

Mar 08, 2012 (10:49 am)

Replying to: tsaputoj (Mar 08, 2012 8:00 am)
Well you should check to see if there is fuel in the fuel rail---no sense guessing with your checkbook. A mechanic could verify that in a few minutes, tops. If there's fuel in the fuel rail (pipeline to the injectors), then it's not the fuel pump.
 
Next step would be to check for spark, also easy. So the mechanic should have it narrowed down to either no spark or no fuel within ten minutes. From there, each component has to be tested.

#46 of 51 Re: 97 328i Fuel Pump Failure? [Mr_Shiftright] by tsaputoj

Mar 09, 2012 (11:07 am)

Replying to: MrShift@Edmunds (Mar 08, 2012 10:49 am)
My car was towed to my house and is sitting in my garage. My 20 something son already checked the spark plugs and we have spark. Would it be easy for me and my son to check the fuel rail our selves?

#47 of 51 Re: 97 328i Fuel Pump Failure? [tsaputoj] by MrShift@Edmunds HOST

Mar 09, 2012 (3:57 pm)

Replying to: tsaputoj (Mar 09, 2012 11:07 am)
Well I guess if you are very very careful you could operate the schrader valve in the fuel rail and see if a little fuel sprays out of it (NOT WHILE CRANKING THE ENGINE!!!). Wear glasses or goggles.
 
Or sometimes you can hear the fuel relay and fuel pump go on for a few seconds when you turn the key to the ON position, but I'm not sure on your particular BMW.
 
If you can find the fuel pump relay you can sometimes by-pass it with a jumper wire.
 
If you find you have a good spark and you have fuel then you must have a problem with the injector pulse.

#48 of 51 BMW 335i: Fuel Pump by nickkappos

Dec 11, 2012 (5:23 pm)

I don't know if this helps at all, but last week my 2008 335i had a "Engine Malfunction" warning, followed by the check engine light - the physical reaction was reduced engine power.
 
I took it to the shop and they said it was a bad fuel pump and said it was "covered under warranty." Now, my warranty has been up for over a year - so she may have meant it was covered under a recall? I'm not sure.

#49 of 51 Re: BMW 335i: Fuel Pump [nickkappos] by kyfdx@Edmunds HOST

Dec 11, 2012 (6:01 pm)

Replying to: nickkappos (Dec 11, 2012 5:23 pm)
The 3.0 twin-turbo is pretty famous for having a high incidence of HPFP failures... I'm sure there is some sort of recall or extended warranty on them...

#50 of 51 Re: BMW 335i: Fuel Pump [kyfdx] by 55396

Dec 11, 2012 (7:25 pm)

Replying to: kyfdx@Edmunds (Dec 11, 2012 6:01 pm)
The turbo's have a high pressure pump. It's a known problem and they stood behind it with a long extended warranty. Ten years seems to stick, but that's very long so I could be mistaken. But that's the way it should work.

Messages Page 5 of 5

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