Fuel Cut Out Switch

[jonnsal]

Can anyone help my galaxy wouldn't start so checked fuel and noticed diesel in the tank was black so drained fuel and filter changed but car only runs if I fill filter up and when that's gone it won't start again so checked pump and it won't work so put live and earth to pump and it pumps perfect so been told could be cut out switch or relay but can't locate either it's a 2005 model tdci ghia PLEASE HELP

[seatkid]

tdci? Is this a mk2 (1.9) or a mk3(1.8)