Pajero V20 2.8 always goes out at extreme minus degrees

Hello, at the current temperatures, as today around the -12°C during the day, the Pajero V20 2.8 Bj.96 does not run anymore. That means it starts normally, you drive 1-2 km, then it goes out. Sometimes jumps again, sometimes not. Is definitely because he gets no more diesel. If you pump by hand on the diesel filter a few times, it runs again for a few minutes. What do ? Diesel pump “frozen” ? No pre-shipment pump in the tank does not have it, doesn’t it? Greetings, A3-Rocky