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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 05-23-2006, 12:17 PM   #1 (permalink)
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fuel leak

hi,
when in long and tight right turns the fuel guage needle drops too much. Iīve checked test nš 7 in obc and usually drops one litre, thatīs about 3,7 gallons, and never goes up. Is this normal or is this car leaking fuel.

Thankīs,
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Old 05-23-2006, 12:41 PM   #2 (permalink)
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have you even smelt gas? i had a gas leak on my little honda civic (in the rear) and it was very obvious that i was leaking gas. you should maybe after it happens again pull over somewhere safe and get under the car the best you can and check for gas traces in the rear end, its possible you have a leak but that much is quite alarming, i would also consider maybe a problem with the fuel level reader?
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Old 05-23-2006, 12:54 PM   #3 (permalink)
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Originally Posted by Furious
have you even smelt gas? i had a gas leak on my little honda civic (in the rear) and it was very obvious that i was leaking gas. you should maybe after it happens again pull over somewhere safe and get under the car the best you can and check for gas traces in the rear end, its possible you have a leak but that much is quite alarming, i would also consider maybe a problem with the fuel level reader?
No fuel smell.
Maybe you are right about that fuel level sender.
I have to check it.

Thankīs

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Old 05-23-2006, 01:02 PM   #4 (permalink)
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good luck, let us know what you find, i always like to know.
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Old 05-23-2006, 01:25 PM   #5 (permalink)
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I can explain the drop in the fuel needle, however I do not know why it does not go back up. In long sweeping turns (I couldn't remember the direction but I guess it's right) your gas will lean to one side or the other of the fuel tank, the pump and everything else is on one side of the tank, if you are low on gas and corner hard enough your car will become gas starved and possibly shut off during such a turn.,, it's never happened to me and I drive pretty hard, so you must be driving insanely.

But more to your problem, have you had to fill the car up since the problem started? if so it should be very obvious if you do have a leak. If not that might be a good but slightly expensive step also see if it takes as much gas as it should according to your fuel gauge... but I do not believe that you could lose that much gas in one turn unless the leak was huge, in which case it should be really apparent that you have a fuel leak.
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Old 05-23-2006, 02:29 PM   #6 (permalink)
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I can explain the drop in the fuel needle, however I do not know why it does not go back up. In long sweeping turns (I couldn't remember the direction but I guess it's right) your gas will lean to one side or the other of the fuel tank, the pump and everything else is on one side of the tank, if you are low on gas and corner hard enough your car will become gas starved and possibly shut off during such a turn.,, it's never happened to me and I drive pretty hard, so you must be driving insanely.

But more to your problem, have you had to fill the car up since the problem started? if so it should be very obvious if you do have a leak. If not that might be a good but slightly expensive step also see if it takes as much gas as it should according to your fuel gauge... but I do not believe that you could lose that much gas in one turn unless the leak was huge, in which case it should be really apparent that you have a fuel leak.
Hi,
Just normal driving here and 90% on a highway.
This always happens in right turns. I get 10litres/100km more or less (+- 28mpg). I donīt know if itīs too much for this car but i do believe that it should be less.
Iīll have to check those level sensors someone mencioned before.

Thankīs

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Old 05-24-2006, 02:27 AM   #7 (permalink)
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in my 320 i get around 10 - 11, city driving!
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