Change the fuel filter first. Next , how cold is it there? diesel begins to gel at around 35 deg f. You may need to add some anti gel additive like Howes lubricator or Power service ( if using power service for the first time have a few spare fuel filters handy, it will clean all the old junk of the tank walls fast and clog your filter mabey more than once )

The fuel lift pump is part of the mechanical injection pump on that engine, sometimes folks add an electric pump before it to help lift from the tank, , but usually stalling isn't indicated there.

make sure there are no holes or cracks in your fuel lines.

If you don't know when it was done last, drain your tank completely and refill with fresh fuel

When was the last time the valves were adjusted? should be every 15000 miles.

Have you tried running a good injector cleaner recently like Diesel Purge?
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-------Robert, '93 940t, '90 240 wagon, '84 240 diesel (she's sick) , '80 245 diesel, '82 Mercedes 300SD