The patient is a Golf 4 1.9 TDI 110KM AHF.
Yesterday morning I went to the store, it fired normally. Around 3 p.m. I wanted to drive to the bank and my account. The car spins, but won't start. I went home to get my computer. Connected but no errors. I cranked it again and .. And it fired normally. I was going shopping this morning, it fired normally. I drove 100 km without any problems. I came home and I unpacked my groceries. And I fired again to rearrange the car. Everything is ok. And at 17 I wanted to move the car again. It's spinning again and won't fire. Computer - zero errors. I pick up the mask - dry hoses. Filter first thought. Well, but I didn't have a spare. I drained the old fuel from it, it was a bit of a mess. I poured oil and fired on the cake. He fired up. But I noticed something. I think it's oil near the pump. Do you think the fuel was missing, through some leak, a leak from the pump? But is it a filter?

EDIT: Today I looked under the hood and only half of the fuel in the hose. Wanting to start the fuel from the hose, it disappeared and I don't want to start.
Yesterday morning I went to the store, it fired normally. Around 3 p.m. I wanted to drive to the bank and my account. The car spins, but won't start. I went home to get my computer. Connected but no errors. I cranked it again and .. And it fired normally. I was going shopping this morning, it fired normally. I drove 100 km without any problems. I came home and I unpacked my groceries. And I fired again to rearrange the car. Everything is ok. And at 17 I wanted to move the car again. It's spinning again and won't fire. Computer - zero errors. I pick up the mask - dry hoses. Filter first thought. Well, but I didn't have a spare. I drained the old fuel from it, it was a bit of a mess. I poured oil and fired on the cake. He fired up. But I noticed something. I think it's oil near the pump. Do you think the fuel was missing, through some leak, a leak from the pump? But is it a filter?

EDIT: Today I looked under the hood and only half of the fuel in the hose. Wanting to start the fuel from the hose, it disappeared and I don't want to start.