2003-2011 Saab 9-3 engine temp reading low? It’s probably your thermostat. Most cars need a thermostat replacement after a hundred thousand miles. An old thermostat May fail in the open position, thereby cooling the engine too much. This is something that should be repaired as soon as possible. You may also notice your heat does not work well in cold weather.
){kind=link}
Thank you man! Helped a lot and saved me 200-300$