I filled my C5 up the other day and once the pump clicked off i noticed my feet were swimming in diesel and a big puddle around the pump (i didn't force any more in so i know its not being over filled unless the pump didn't click off), upon investigation i noticed that when i pulled the cover off under the seat it was all swimming in there, it seems to be coming from a breather pipe/ connection roughly under the middle seat and there's no way i can reach or see properly what is happening without lowering or removing the tank.
Has any one else ever had or heard of this problem and how have you solved it, If not how much of a pain is it to remove the tank and investigate more.
I have found a picture on Google and circled roughly where i think its leaking either out of 1 of the 2 within the circle
