sorry to hear that.. if the key is ok then the fault lies with the central locking control module, but this can ONLY be sorted by renault themselves, because they are the ONLY people with all the release codes to re-set or replace any alarm/immobilizer and door components with regards to the central locking.
but before giong to renault, check the fuses and the connections on the rear of the fusebox!!
elannor67
August 2006