Mine is doing this too, its a 52 plate 1.8 TDi estate. Has done this intermittently, exactly as you have said. AA had to tow me back last time, have had the glow plugs replaced and just now the air flow meter (thats what the error code said) but this morning as I went to work it did it again in heavy traffic! Waited a few minutes and re-started and managed to get it back to the garage. It is still there. Perhaps this is a Ford fault with this model of Focus, could it be the 'chip'? This one has also decided to show a false reading on the fuel gauge. The only way I know how much is in it is by using the trip to clock the miles driven.
Any help would be much appreciated as I have to drive 24 miles each way to work, 5 days a week and am ready to put this car in the crusher!!!!!!!!!!!!!!!!!!
