There used to be a MASSIVE thread on here about this problem. Contact a Renault dealer, depending on model year they should fit a new dash and charge only £100, Renault cover the rest of the cost.
See BBC tv Watchdog programme
http://www.bbc.co.uk/blogs/watchdog/2009/10/renault_get_lost_on_a_scenic_r.html
Lots of other info online, look at
www.renaultforums.co.uk
gav
July 2011