Have Volkswagen Questions? Ask an Expert Now.
I'd say this could be a fault with the inlet valve to the fuel tank
this allows air in on a 1 way valve to prevent a vacuum being created inside the tank as it empties
so try loosening the filler cap a little to see if this helps
if it does then replace the cap
do you still need help?
Bear in mind that the site takes a deposit from you at the beginning and this is held by the site until you rate my answer at which point the cash is split between the site and the expert. so if my answers have been helpful please rate my answer.