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F10 / F11 (2011 - Current)
The new chapter in the highly successful story of the BMW 5 Series Sedan (F10) and wagon (F11)

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  #1  
Old 12-28-2012, 11:03 AM
Tuffyboy Tuffyboy is offline
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Location: Southern California
 
Join Date: Aug 2012
Posts: 63
Mein Auto: 550i M-Sport
F10 major gas leak due to fuel pump issue

Hey Guys, I have heard of some fuel pump issues but never similar to this- after filling up my tank I noticed a strong smell of gas. I drove to the office and when I left I noticed again, smell of gas and a large wet spot under the car. I looked but didn't notice anything dripping so drove home.

On looking at the fuel gauge I noticed it was now only half full (or half empty depending on your outlook : ). I pulled up to the house and recorded this:



Car spent a week at the shop (they apparently didn't have a gasket) and the repair order stated: due to wires for fuel pump connector melting causing pins to fall through holes causing fuel leak- performed test and found many fault codes- replaced supply module, socket housing, grommet, fuel pump and socket housing. cleared fault codes.

Anyone else have fuel pouring onto their tank? Is this the fuel pump issue I have heard about or something one off?

My 550 doesn't need help getting rid of fuel
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  #2  
Old 12-28-2012, 11:22 AM
The X Men The X Men is offline
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Location: MA
 
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Mein Auto: 2012 535xi 2013 X3 35i
Sounds like something cause the fuel pump connector to over heat, it doesnt sound like the old N54 HPFP problem.
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Old 12-28-2012, 11:56 AM
wildcardz wildcardz is offline
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Location: Houston, TX
 
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Mein Auto: 2012 535i MSport
Have you modded your car in any way?
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Old 12-28-2012, 11:58 AM
Tuffyboy Tuffyboy is offline
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Location: Southern California
 
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Mein Auto: 550i M-Sport
It has Dinan 2 but nothing else at all.
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  #5  
Old 12-28-2012, 03:38 PM
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Decboy Decboy is offline
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Location: Southern California
 
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Posts: 420
Mein Auto: 2013 BMW 550i
The old N54 HPFP issue is more an internal problem because of a bad part or faulty sensor causing long cranks upon startup or engine stalls. In your case, it's a leak of gasoline but your engine ran smooth as long as there is still enough of it to feed the engine. I'm glad you noticed it right away and took care of it and no one got hurt. From your video, that's a pretty bad leak.
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