hi mate,my 53 plate focus 1.8tdci doing similar thing. mine starts first kick and for no reason that i can find won't start,just turning over with glowplug light flashing. it has also cut out while driving,glowplug light flashes and comes to a stop. i have a feeling although there could be a lot of things to blame(at an expense) that it is the maf sensor. any ideas ladies n gents and solutions? thanks.