Start and stop always on don't know what to do

When revolutions are lowered, the car jerks and suddenly stalls. Appart from that, there is a message on the computer indicating to stop the engine because there is water in the radiator. When checkin… 

The engine indicator turns on. I scan the vehicle and, after a couple of days, it starts working again. A message indicating the engine needs to be checked appears.

Lights not working on the dashboard

My peugeot dashboard is not working, my fuel gauge not working, my both indicator not working , my radio not working

What makes fiat uno not to show on to the dashboard?