16vinkblue

Hello fellow rado peeps, Just got myself an 1991 16v 1.8. Having a little issue regarding wipers/indicators. I have tried looking before posting but to avail. If I move my wiper stock or indicator quickly the dials flicker and the water temp light comes on. I know this isnt normal, should I bee looking at replacing both storks? Any help massively appreciated Mark (Newbie)