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F10 / F11 (2011 - Current)
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  #1  
Old 12-28-2012, 12:03 PM
Tuffyboy Tuffyboy is offline
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Location: Southern California
 
Join Date: Aug 2012
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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, 12:22 PM
The X Men The X Men is online now
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Mein Auto: 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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  #3  
Old 12-28-2012, 12:56 PM
wildcardz wildcardz is offline
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Have you modded your car in any way?
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  #4  
Old 12-28-2012, 12:58 PM
Tuffyboy Tuffyboy is offline
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It has Dinan 2 but nothing else at all.
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  #5  
Old 12-28-2012, 04:38 PM
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Decboy Decboy is offline
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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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  #6  
Old 12-30-2015, 09:39 PM
preetmandavia preetmandavia is online now
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Mein Auto: 2011 BMW 535i X-Drive
Covered under warranty 10 years regardless of mileage

I actually just joined so I could post a response to this thread. I had the same issue on my 2011 535 and took it to my mechanic. He told me that due to the repeated fuel pump issues, not only was there a warranty extension, but the original extension to the 10 yr/100k miles warranty has been superseded by a 10 yr warranty with no limit to mileage. BMW will repair the issue and all associated issues for FREE. If they try to refuse like the lady I spoke to at the stealership, tell them you would like to speak with a warranty manager (who should help you out). I was appalled at the lack of honesty and complete ignorance I experienced when I went to the dealership and just wanted to shed some light to anyone looking at this thread. If you want to confirm it was the pump, take the back seat out and unscrew the four screws around the circular plate covering the fuel pump connector. I have attached a photo of my failed connector as well.
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  #7  
Old 01-01-2016, 05:02 AM
Charlieinchina Charlieinchina is offline
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Hi everyone, I am living and working in China. I have a 2011 535Li on the extended F18 chassis. I had it at he dealer for two recall issues 2 weeks ago. The first was the bolts breaking in the vanos, the second was to replace the fuel pump wiring harness and fuel pump. Neither had been an issue with my car and they did it almost free of charge... Ended up paying for a new valve cover because mine was a..."broken"
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  #8  
Old 01-01-2016, 08:10 AM
bmw325 bmw325 is online now
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Quote:
Originally Posted by Decboy View Post
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.

Also the hpfp is a mechanical device that sits in the engine bay.
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  #9  
Old Today, 01:09 PM
rico-b rico-b is offline
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Quote:
Originally Posted by preetmandavia View Post
I actually just joined so I could post a response to this thread. I had the same issue on my 2011 535 and took it to my mechanic. He told me that due to the repeated fuel pump issues, not only was there a warranty extension, but the original extension to the 10 yr/100k miles warranty has been superseded by a 10 yr warranty with no limit to mileage. BMW will repair the issue and all associated issues for FREE. If they try to refuse like the lady I spoke to at the stealership, tell them you would like to speak with a warranty manager (who should help you out). I was appalled at the lack of honesty and complete ignorance I experienced when I went to the dealership and just wanted to shed some light to anyone looking at this thread. If you want to confirm it was the pump, take the back seat out and unscrew the four screws around the circular plate covering the fuel pump connector. I have attached a photo of my failed connector as well.
I am having the exact same issue on my 2011 535i. Just this morning, my mechanic removed the seats and confirmed this is the melting power wire issue causing a hole in the body of the fuel pump. He reiterated this is not the high-pressure fuel pump, but rather the low pressure one. So there is a big question mark about whether BMW should fix it for free. My initial understanding was that they covered only the high-pressure pump, and on N54 engines (mine is N55). But it sounds like in your post that BMW did in fact fix it for you. Can you confirm? Was it enough to talk to the dealership manager, or did you have to talk to BMW-NA head office? Any insight would be greatly appreciated, as I prepare to go into battle with the corporate bureaucrats. Any warranty doc to link to or share?
Thanks!
rico-b
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  #10  
Old Today, 08:58 PM
preetmandavia preetmandavia is online now
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Location: Rockville, MD
 
Join Date: Dec 2015
Posts: 2
Mein Auto: 2011 BMW 535i X-Drive
Quote:
Originally Posted by rico-b View Post
I am having the exact same issue on my 2011 535i. Just this morning, my mechanic removed the seats and confirmed this is the melting power wire issue causing a hole in the body of the fuel pump. He reiterated this is not the high-pressure fuel pump, but rather the low pressure one. So there is a big question mark about whether BMW should fix it for free. My initial understanding was that they covered only the high-pressure pump, and on N54 engines (mine is N55). But it sounds like in your post that BMW did in fact fix it for you. Can you confirm? Was it enough to talk to the dealership manager, or did you have to talk to BMW-NA head office? Any insight would be greatly appreciated, as I prepare to go into battle with the corporate bureaucrats. Any warranty doc to link to or share?
Thanks!
rico-b
Yes! The dealership will fix it for you until 2021. The word for word description of the warranty duration is "Ten years from production with no limit on mileage". If they tell you anything different, speak to a dealer manager and ask them to SHOW you on their computer where the warranty is described. I have the n55 as well and they fixed without hesitation after escalating.
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