I've had problems with the immobiliser jamming in my 1998 deisel espace for the past six months or so. Twice had it at the dealer's to ask an expert and twice they found nothing! I think when they attach diagnostic equipment it resets itself or something. Then I found a bit of software on the internet that gives you the four digit reset code and a set of instructions - this works every time, resets the immobiliser- great! However it now happens a lot more frequently and it's a real pain having to go through the procedure every time I start the car. Someone suggested it might be to do with a battery in the dash? Can anyone shed any light on this at all? Cheers, Ken.