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                         I have just topped the tank of my 1.4HDI C3 and noticed that fuel is spilling from underneath the car.  OK it was brimmed, but not overflowing.  After a few miles the leak has appeared to stop.  Anyone know if there is a relief valve, or some other device to vent fuel from the tank?  I have looked under the back seat at the fuel pump and that is dry, so no leaks there.  
  
  
                            
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