Check if the pump has constant fuel flow.
On Euro 3 (D5244T) engine the HP pump can suck fuel from the tank itself but takes a very long time to prime the fuel line.
If the fuel level is under 20 liters, it needs intank pump to get to the other side of the saddle tank.
If your's is at 1/4 of tank it's exactly where the not working intank pump starts to cause problems plus it needs the pump to prime the fuel line without cranking the engine.
Just check if it has fuel flow and then there are next steps to troubleshoot your problem.
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2002 V70 D5
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