2004 Ford Mondeo Engine management light

Electrical problem
2004 Ford Mondeo 4 cyl Two Wheel Drive Automatic

Car has recently had problems when starting insomuch that when starting, the mileometer turns to dashes, speedo stops working, and mpg info av speed all turn to _ _ _ _. Some times on restarting it all clears but sometimes it needs restarting 10 / 15 times before clearing, car performing well other than that, thanks for reading