A common problem is faulty chip in the key fob. Sorry, it usually requires a new one ordered from and programmed by Renault. You could try posting problem in more detail on Parkers forum.
Keith
July 2006
You need to get an imobliser code from renault and programme it in, the have a rolling code so if you dont use a remote in a while it losses the code
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Try fixfault.com to fix cars.