I have just renewed all the filters on my 2002 x trail but now I am finding that it needs to be cranked excessively first thing in the morning until it fires. Once it fires up it will run normally and start normally for the rest of the day. Is it possible that this could be a problem with the fuel check valve as it seems as though it has lost its fuel supply first thing in the morning and has to draw fuel from the tank into the secondary filter. The model is an X Trail 2.2 dci se+