clio 'check esc' and 'check hill start assistance'

Hi!

I drive a renault clio 2014 1.2. I have been having a problem with it for about a year. Sometimes it is absolutely fine and others it won't even start. I have taken it to 5 garages including a renault garage and no one can find what the problem is.

The symptoms: When I have problems with the car it will start fine but won't be able to go over 20mph.The check engine light comes on and it says 'check esc' and 'check hill start assistance'. When this happens if I put the car off for...

clio 'check esc' and 'check hill start assistance'