I had this problem on my Scenic and due to this website I was pointed in the right direction, Thanks!!
The problem started with the clock resetting and within a few days developed to the point where the dash wouldn't switch on without a hefty 'technical tap'. Anyway I found a company on
advertising they could do the repair for £120.
This was cheaper than others and required a small leap of faith of whether they were upto the job as I couldn't see any previous refurbs in their history.
The unit was sent on the Monday, I had a phonecall Wednesday and an email saying it was being sent out and it was in the car working correctly on the Thursday.
I won't advertise the company as this would only get removed but 'tronix-pixel', would be familiar words to those who search
Thank You Renault Forums and its contributors for helping me getting my Scenic fixed and suffering little from the better half!!!