Petrol Dripping Off Tank

Questions specifically about a Petrol powered Citroen C3 (usually engine or fuel related problems).
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My Name: Dandan2389

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Just had a new fuel pump all sealed correctly car works fine.

Got it back from garage and no drip i then went to the garage anf filled my tank full.

Apparently you should not fill a tank full when hot as the seal expands which causes it to drip.

Could someone explain and tell me about this many thanks

P.S I took it too the garage when it was dripping & he said to do some miles to get the tank down abit ive now done 29 miles and still drips
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My Name: C3driver52

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Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 i
Fuel Type: Petrol
Mileage: 79984
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
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Apparently you should not fill a tank full when hot as the seal expands which causes it to drip.
You shouldn't fill the tank past the first 'click' of the automatic off at the filling station, then you won't ever get into the expansion when hot problems.

Could someone explain and tell me about this many thanks
Petrol expands as it warms up. So if you filled the tank in the evening, left it in the sun to warm up, the fuel will expand. There should be sufficient space in the tank for expansion, but if you have overfilled the tank, past the first 'click' at the pump, then the fuel will find its way out of the tank via the weakest point.

P.S I took it too the garage when it was dripping & he said to do some miles to get the tank down abit ive now done 29 miles and still drips
It sounds like you have a leaking fuel tank, or a loose pipe on the fuel outlet (to the engine).

Petrol can be dangerous, you may have to drain the tank to drop it out for a proper inspection to find the leak, or just replace it. Be careful.
My Name: Dandan2389

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i filled the tank yesterday morning and then it sat in the sun for the day.

It has not dripped overnight but started this morning after 30 mins run it is dripping.

Before it went in the garage it was not dripping but only had to bars missing. but when i filled up before it went into the garage there was no dripping atall.
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My Name: Arfur Dent

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Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
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i filled the tank yesterday morning and then it sat in the sun for the day.

It has not dripped overnight but started this morning after 30 mins run it is dripping.
Any petrol leak is a danger as petrol fumes can ignite from a spark, causing the rest of the fuel to burn. A thorough investigation of the fuel tank and any associated pipes and unions is required.

The C3 petrol doesn't normally drip fuel, you have a fault that needs rectifying.

Did you continue to fill the fuel tank after the first automatic shut-off at the pump?
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My Name: Dandan2389

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Posts: 15
Joined: Tue Feb 12, 2013 10:29 pm

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car is fine now not dripping atall.

I believe it is because i filled up first time after having a new fuel pump.

Its fine now though atleast when i trade it in at the weekend it will be all ok am getting a ds3 so all happy =]
My Name: Missing Lincs

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Joined: Mon Mar 05, 2012 9:29 pm
Model: C3 2002-2005, Original shape model
Year: 2004 (04)
Engine Size: 1.1
Fuel Type: Petrol
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
Location: United Kingdom
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I think when your new fuel pump was fitted a seal was not correctly placed or a pipe not correctly clamped.

I also think that whoever buys your old car will be inheriting a potential death trap! Fuel leaks don't go away.

Sorry to sound dramatic but I've seen car fires, the results are devastating.
If at first you don't succeed, destroy all the evidence and pretend you never tried :lol:
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