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08-27-2017, 03:49 PM | #1 |
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Hi All!
Started noticing a strong gasoline odor in my garage, but only after I fill my tank, no odor once the gas level goes down. No noticeable leaking. Hard to pinpoint, it's only outside the car, not in the cabin, seems like it may be stronger on the drivers side, but can't be sure. Which does not make sense if it's the tank or filler neck. I found the thread below, but was wondering if anybody else has had this issue and if you found a solution? http://www.1addicts.com/forums/showthread.php?t=1330242 |
08-27-2017, 09:11 PM | #2 |
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Have same thing on my 2012 e88. The charcoal canister is on the list of maintenance parts at 80k. But I am not convinced this is the issue. Only happens when I fill and not overfilling.
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09-02-2017, 02:00 PM | #3 |
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I have never had an issue with my 135 but any other time I've smelled gas outside of a vehicle it has always proven to be a fuel leak somewhere.
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09-05-2017, 08:41 AM | #4 |
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There are issues with the fuel tank vent valves on these cars, likely should be looked at by dealer.
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09-05-2017, 08:58 AM | #5 | |
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Quote:
I then accidently had my car running for about 5 minutes on a pretty good incline 30 degrees or so nose up. After running for a bit I noticed a puddle of fuel under the fuel tank on the drivers side. I over estimated the ability of the sealed covers under the back seat. :-) My fuel regulator under the rear seat on the drivers side had cracks in the top and was leaking out over the top of the fuel tank. $400.00 bucks (#FCPEuroRocks) and 45 minutes I replaced the low pressure fuel pump and fuel regulator(both under the back seat and smell is gone. That was the beginning of my ordeal, but that is a whole different and unrelated story. :-) Hope this helps, pretty easy to check by pulling up the back seat and each cover has 4 10mm nuts the covers come right off. At least you can check that off the troubleshooting list quickly. |
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12-04-2017, 06:47 PM | #6 |
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What I don't understand about the folks mentioning to pull the rear seats. Is why doesn't it smell inside the car? Also, if its vapor leak, why doesn't it smell all the time?
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12-14-2017, 05:36 PM | #7 | |
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Quote:
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12-15-2017, 10:12 AM | #8 |
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12-15-2018, 08:31 PM | #9 | ||
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Quote:
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How do you pull up the back seat? Is there no other way to investigate or rule this out? Could my mechanic have ruled this out as a problem with a smoke test? |
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12-16-2018, 05:17 AM | #10 |
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The rear seat bench is only held in by friction. If I recall correctly when I removed mine, you just lift up from the front and it'll pull up. You might have to use some force.
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12-25-2018, 07:01 PM | #11 |
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So we pulled the rear seats up while I was at the mechanic and exposed both the fuel regulator (driver side rear seat?) and this underneath the passenger side rear seat which I believe is the fuel sending unit?
We are smelling fuel vapour from the passenger side and not the driver side so my mechanic is recommending replacing the gasket here first then if that does not work replacing the fuel pump/sending unit. Anyone have an opinion on this approach and whether it makes sense? I filled up an hour / 30 mile journey before getting to the shop and there was no sign of leaking fuel, just a smell of vapour. |
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12-26-2018, 09:29 AM | #12 | |
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[/QUOTE]
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12-27-2018, 05:59 AM | #13 |
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Lucky, try filling up just before. The smell would disappear from mine within 20 miles or so... I will be pulling the rear seats in the spring, when car is out of storage.
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12-27-2018, 05:44 PM | #17 |
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I would not recommend just changing parts without narrowing it down a bit more, or at least ruling out some things. The only plus if you change canister, is this is a regular maintenance item... but expensive one.
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12-27-2018, 07:49 PM | #18 | |
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Kind of a pain in the ass to replace, but doable. |
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12-28-2018, 07:00 AM | #19 | |
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The canister is the likely problem. |
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12-29-2018, 10:23 AM | #20 | |
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The sender itself, which measures fuel level, still works because the mechanism is unaffected by the crack. Replace the canister. If it works more power to you. But think you will find you still have the smell. |
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12-29-2018, 05:17 PM | #21 |
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The challenge I have with it being anything other than canister. Is why does it not smell
inside the vehicle, and only after filling up. This does lead me to believe its the canister. I will still pull up rear seat and inspect the area/parts mentioned.
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