Tach together, we have problems with our Grand Espace. (BJ 2008, 135000km) After the inspection, 2 weeks ago, the car jumped badly and at the beginning of every drive took the gas badly. At some point it went only with starter aid and hand pump. The car then ran perfectly and could also be restarted if it did not stand longer than approx. 1.5 hours. Three different ADAC angels have recognized the air is pulled, which of course have different reasons ka nn. The car is now standing at Renault and it is “presumed” that it is the diesel pump. Reperature costs approx. 5000 Euro. We do not really believe in a defective pump. What if it is only the pipes that pull air somewhere (not quite improbable after the inspection)? Can you not only replace the valves / clean and not immediately the whole pump. I know that the replacement would be connected with many working hours (engine out). Who has experience or knows a good factory for a second opinion somewhere in the Ruhr area? Last one of you listen!