Hi, can anyone give me advice on what could be a problem? I have Ford C-Max 2010 DM2 [2007-2010] diesel. Since I replaced the fuel filter I have a problem. Car would start, work for 20 sec and cut off, and would not start again until I pump out some air from the system. Only there is every time lots of air, which makes no sense. Most annoying is that the previous time I did servicing there was no problems, changed filter, pumped out air, once, and all was good.