[Flyboy]

I am having an issue with my 2008 MK2 TT 3.2 Quattro fuel gauge display. When the gauge gets to about half tank it displays the tank as being empty with 0 miles until empty. When the vehicle is initially started the display reads "fuel management system malfunction." This all goes away when I fill the tank up, then the gauge reads correctly until is gets to half tank. Any suggestions as to what is causing this issue and how to correct it? Thanks.