I think this is the problem I am having with my 02 Clio, and I have just stumbled upon this thread while actually coming on the site to see whether there a guide for repairing a small section of paint work.
On occasion, my Clio doesn't start/turnover but has full electrics. Sometimes it will then start on the 2nd or 3rd try, sometimes only after 10 minutes of trying. I am going to hunt my spare key out this evening! Thanks for the info