Just bought a 2011 Touareg TDI Executive and my very first Diesel. When I try to fuel up, the machine pumps for a gallon or two, then quits. It does this over and over again. Last fill up took me a half hour. Is there some trick or something I'm doing wrong when trying to fill up the car? This has happened each time I try filling. As an elderly female I know nothing about cars so hope you can help me. I love this car and this is the only problem I have. Any suggestions you may have with my fueling problem would be greatly appreciated.