you need to get the chassis number off your car and give it to renault. if they are nice enough like when it happened to me they will provide you with a code that is entered via your central locking button on the dash board. saved me a lot of money buying a new key as firstly they told me that this was the only option available.
hope you are lucky enough with a renalut dealer to get the code like i did.
Mark, August 2008
hi
i have some diagrams on renualt immobiliesr i do not know if they will work on your car
if you email me exact year of car model
i will email you back a attachment diagram that may help
if not it could be a back to renualt job
email unkno@hotmail.co.uk