I have my car in storage and starting it from time to time..Today I noticed I had dripping gas underneath the car while running. Nothing from the gas tank but smack dab right underneath the middle of the two back seats in front of the rear tires....
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I've noticed a bit of fuel leak when I over fill the tank too much. Looks like pressure can build up in the tank and can leak from the bottom somewhere. Mine just went away. Hasn't leaked or smelled since.
Open the fuel cap and let it release pressure. Stop filling your fuel when the auto shut off on the gas station stops. If the smell and leaking continues I would take it to the dealer immediately.
The Fuel filter is closer to the middle, could be leaking from there?
The alladata website has some info on the fuel tank, under
. Fuel Delivery and Air Induction
45 Filler neck
46 Fuel tank air admission line
47 Fuel line (shuts off nozzle when refueling)
75 Fuel tank
77 Activated charcoal canister
88 Fuel delivery module
89/1 Left closing plate
92 Fuel pressure line to engine
93 Purge line to purge control valve
B4/3 Fuel tank pressure sensor
M3 Fuel pump (FP)
Y58/4 Activated charcoal canister shutoff valve