2.5 Tdi jerks and squirts at the start

Moin together, small problem I did not stress with my 2.5 Tdi 1999 Bj. mileage at the time at 368,000km and the last 130tkm. Yesterday I drove normal and when I wanted to work 2 hours later he did very hard to tackle, however jumped after 4 sec. gurgling. While the whole car was jerking, the vacuum pump exceptionally regularly slowed down but very much and every 1.0-1.5 seconds the car gave a blow of itself as if it were Then someone went out of my moose at a time when he missed a body check and finally squirted his best out of the back, he went out. Of course I started him again, kicked him briefly in idle on 1.5-2,000 tours and heard such an incredible terrible clacking. After that I turned him off. Sorry, for this completely stupid description but I can’t describe in detail how it was. Maybe someone might have the likes of MfG has had a lot of experience.