You probably need a new dashboard, this was such a common fault Renault were forced to offer replacements at a much reduced cost. Don't know if you can still claim, but try contacting Renault.
If you put 'faulty renault dash' into any search engine you'll get more info.
dan
August 2012
check the fuse for it, see if you can find it in the fusebox or manual.could also be a wire that is not tight.
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Try fixfault.com to fix cars.