Can you get your key repaired by someone who is good with electronics, a local TV repairman fixed my Vauxhall key ( broken soldered joint) for a few pounds.
If that's no good, it would be easier and cheaper to get a new key. Dont buy an old one off ebay etc., as I dont think they can be re-programmed to your car. Go to an auto locksmith.
Another option is to download the small program from
http://www.bba-reman.com/content.aspx?content=Test_for_Renault_Key_Immobiliser_failures_emergency_recode
called 'Renault key/immobiliser test kit', from which you can get your immo bypass code. This is just a temporary fix, as you have to re-enter the code every time the engine is off for more than five minutes.
Just re-read your post and realised you say you cant open the car, doesnt the key work in the doorlock?
astragal
February 2010
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix cars.