We can find no record of the code for my late uncle's P Reg Xantia. Is there any sensible way we can have this reprogrammed - I rang a Citroen garage and they said it would cost about £800 to replace the parts involved which is more than the value of the car!
the garage is right. if you dont know code then the immobilzer components will have to be replaced. not cheap. try 1111 or 1234 as a code quite common!