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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 07-04-2015, 12:08 AM   #1
Yourrid
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Join Date: Feb 2013
Location: Buford, GA
Posts: 28
My Ride: 2004 325Ci Coupe
Unhappy Wouldn't Start... Now it does... Puzzled

Had a problem tonight that has me stumped. Before I go and start replacing everything that I can get my hands on, I figured I would ask you guys first.

2004 325CI M54 5-speed
Drove to see fireworks, car ran great. Parked it after searching for a long time, no problem. Went to watch fireworks, came back to her in 2-3 hours, car won't start. She turned over great, but when it finally started to ignite, it would spudder for about 2-3 seconds and then stall. Turned it off, back on, cranked again, spudder and then nothing. Waited a little bit, tried it again, spudder for 2-3 seconds and stall. Held the pedal to the floor and tried it, spudder for 2-3 seconds and stall. Off 10 seconds, on (allowing it to prime) 10 seconds, off 10, on 10... start, spudder and stall.

With everyone trying to get to their cars I couldn't hear if the fuel pump was priming or not. Ended up walking back to the GF's house Luckily we weren't very far away. Felt like a walk of shame having my car break down with her with me

Came back about an hour later to get my stuff out and wait for the tow truck to show up. Got in, turned the key on and listened closely to hear the fuel pump prime... sure enough it was. Cranked her over and she started right up! I let her run for a bit and everything was running flawlessly. I did notice an odor of gas which would suggest that it may have been flooded, which boggles my mind as to how it got flooded in the first place considering it was just sitting there for a few hours.

The obvious place to look is the fuel pump and fuel filter. Anyone have any other ideas on probably causes?
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Old 07-04-2015, 12:18 AM   #2
TRITONAL
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Join Date: Jun 2014
Location: AZ
Posts: 504
My Ride: 04 330Ci
Sounds like a classic failing fuel pump. Easy to do, make sure to replace the fuel filter while you are at it. Here is the Siemens/VDO pump from BMAParts.com. Use code "specE30" for 5% discount, and free shipping.
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Old 07-04-2015, 05:03 AM   #3
Rexii
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Join Date: Jun 2015
Location: Australia
Posts: 188
My Ride: 2004 BMW 330ci E46
My E36 did that, only it completely failed and would only kick over - no start. Luckily it only cost me about $200 to fix at the time and my buddy fitted the fuel pump in for me.
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Last edited by Rexii; 07-04-2015 at 05:03 AM.
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Old 07-04-2015, 07:17 AM   #4
Yourrid
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Join Date: Feb 2013
Location: Buford, GA
Posts: 28
My Ride: 2004 325Ci Coupe
Quote:
Originally Posted by TRITONAL View Post
Sounds like a classic failing fuel pump. Easy to do, make sure to replace the fuel filter while you are at it. Here is the Siemens/VDO pump from BMAParts.com. Use code "specE30" for 5% discount, and free shipping.
Thanks for the link and discount code TRITIONAL. You rock! Is Siemens/VDO the stock OEM for the pump?
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Old 07-04-2015, 07:26 AM   #5
markusmarkus
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Quote:
Originally Posted by Yourrid View Post
Thanks for the link and discount code TRITIONAL. You rock! Is Siemens/VDO the stock OEM for the pump?

Yes!
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Old 07-04-2015, 07:51 AM   #6
jfoj
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My Ride: 330CiC, M5, X5, E93
Read all about it!

http://forum.e46fanatics.com/showthread.php?t=929501
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 07-06-2015, 03:12 AM   #7
NumbaOneNewb
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My Ride: 2003 330CI Silver
Fuel pump
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