dash board electronic problem ?

My renault kangoo has been playing up for over a year and all the worning lights come on door alarm comes on when all doors are closed can not read speed can not tell how much fuel i have, rev counter jumps, along with the miliage and digital clock. have had it into renault a few times and they can not find a fault also tryed electronic company but unable to help because it is intermitant and not constant. i have a renault kangoo 2004 automatic mpv 1600cc