Renault Kangoo electrics

THE CAR DASH BOARD LIGHTS UP MOST OF THE WARNING LIGHTS COME ON CAN NOT SEE HOW MUCH FUEL IS IN THE CAR THE REV COUNTER AND DIGITAL CLOCK JUMPS ALL OVER THE PLACE AND THE DOOR ALARM GOES OFF EVEN THOUGH ALL DOORS ARE CLOSED. HAVE TAKEN IT TO RENAULT DEALER AND THEY CAN NOT FIND A PROBLEM THE PROBLEM IS NOT THERE ALL THE TIME SOME TIMES IT PLAYS UP FOR DAYS OR WEEKS THEN WONT PLAY UP FOR SOME TIME. OH YES YOU ALSO LOSE THE MILEGAGE IT JUMPS FROM THE FULL MILEGAGE TO TRAVELED MIGEGAGE AND ALSO GOES COMPLEATLY BLANK THE COMPUTER IN MY CAR IS SELF DIAGNOSTIC IT KEEPS TRYING TO FIND A FAULT BUT NONE CAN BE FOUND.