That is where I would go first. If it's flowing out of the tank you know you'll have to trouble shoot from there (the prefilter). If you do give it a shot of compressed air, be sure to siphon some fuel out and leave the tank cap off

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1999 E300DT (131,800) 154,000 Black on Black SOLD

2006 CLK 500 coupe Capri Blue on Grey (zoom,zoom)
47,000mi

04 VW TDI Passat 80,000mi
(Techno)

How to eliminate oil dependency through market-driven approaches.
“We could cut oil use in half by 2025, and by 2040, oil use could be zero,”
The Sound of Diesel Speed
Ode to MB