Thanks for the reply previously. We managed to get the car started after leaving the battery disconnected for a while, and then running a supply direct from the battery to the glowplugs. (This also happened to a bloke at work the week before, and this was the advice given to him). This then allowed it to start, and has been OK (so far) from then. Yes, there is also a potential leak somewhere on the fuel side, as the bulb goes soft and can be pressed a few times before it starts. Anyway, thanks for the advice.