Megane Scenic 1.9 DCI Built 08.2005 does not start

Hello dear people I drive a Renault Megane Scenic 1,9 DCI 96 KW Bj 08.2005 Yesterday he just went out shortly after the start and can not be started since the tank is not empty.. Error memory empty it seems to me as if he does not get a diesel. I pumped several times at the vent (black rubber bellows front passenger side in the engine compartment) until I noticed a strong counter pressure at the same time start the engine. He jumped on but then immediately went out again has tested this several times always the same. Is it on the diesel filter, pre-shipment pump or on the high pressure diesel pump. Which error is probably present and where exactly can I look for and fix errors. Greetings Ralclau