You may of seen laguna mk2 key cards going for silly money on ebay ,
and other sellers claiming they can reprogramme your keys
but the fact is they cannot be programmed to disable the immobiliser , this HAS to be done via Renault main dealers computer , so therefore the key is useless
the other fact is , you'l be lucky if they agree to programme a 2nd hand card,
you may however get the key to open and close the doors using the re-sycro method
if a key is broken you can get them fixed via another ebay seller who offers the service for around £25, a very fast and efficient service he provides as well .
new keys are £80 form renault plus about £45 to partner it to your car, and at least this should is guaranteed for a year .