Fuel tank leak

[cliffk]

Not sure if this is the right place to put this post but can't really see anywhere else.

I had my car (03 406 estate HDI) up on a ramp the other day for a general look around the underneath and noticed a small damp patch on the fuel tank, it appears that fuel is leaking somewher but I cant see where as it is up between the bobywork and the tank where the feed and return pipes go up to the tank connection.

Anybody else had this problem.

[jonsowman]

Likely to be the tank seal on the top of the tank, had this on both my D8 saloon and D9 estate. Unfortunately it's a huge pain since you need to drop the tank off to get to it.

[puggy]

Lift the drivers side rear seat up and underneath you will see
a large black plastic cap , twist this to release it and underneath
you will see the top of the fuel pump and pipe connectors .

[Doggy]

My bro's old one did this, someone had snapped the locking ring, then tried to bodge it together with a big hose clip.

[davew]

mine is leaking from around the seal on the tank pump, not enough to drip but i can see it's damp, i don't want to touch it yet as they can be a right pain to seal.

[cliffk]

Thanks for the advice will look through the inspection hole and see if there is anything amiss I had recently filled the tank full so that may be why it's shown up