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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, Dec-14-2017, 05:21:01 AM   #1
Speed Racer 66
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Default Fuel leak at fuel pump

Just purchased a 03 E46 M3 about 3 weeks ago, filled it up the other day and smelled fuel, after doing some research on here I pulled my rear seat and inspected the fuel pump. I found fuel puddled on top of the pump, upon closer inspection I found fuel coming up through the pins off the electrical connector, has any one ever heard of this before and is there any way to repair this without replacing the pump. Any help is greatly appreciated

Thanks
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Old Thu, Dec-14-2017, 01:09:51 PM   #2
11b4
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Default Re: Fuel leak at fuel pump

Is the plastic hose that is connected to the pump good?

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Old Fri, Dec-15-2017, 04:12:01 AM   #3
Speed Racer 66
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Default Re: Fuel leak at fuel pump

Thanks for the response, yes the plastic fuel line is good, it only happens when it is full or an aggressive left hand turn.
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Old Fri, Dec-15-2017, 05:31:41 AM   #4
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Default Re: Fuel leak at fuel pump

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Originally Posted by Speed Racer 66 View Post
Thanks for the response, yes the plastic fuel line is good, it only happens when it is full or an aggressive left hand turn.
There is also a sealing ring that seals the pump to the tank, it could be cracked.

You can see it here: https://drive.google.com/uc?export=v...DN0ZTVfRlZNbHc
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Discussing Fuel leak at fuel pump in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)