Unforunately i had the same problem with my imobiliser not turning off and therefore couldnt start the car. it turned out to be the keys that wouldnt work; which may seem like a little job- but oh know not with the clio (i have had rather alot of outgoings with it!!). i took my car to renault wolverhampton after turning the key loads of times and hoping i wouldnt stall it and not be able to start it on my journey there. they then charged me £175 for two new keys!!! but at least i can start the car. good luck
s
June 2006