I have a 1996 Skoda Felicia 1.6 (VW engine). Lately the fan seems to be overworking. There doesen't seem to be a ride, even in mild weather, in which it doesen't start working. Especially while running idle at a traffic light. The thermostat in the dashboard seems to be broken, it barely rises at all. So I don't know if the car is really heating that much. I also have a constant loss of water from the radiator at about the rate of 1 litre in 6 months (maybe I'm exaggerating a bit).
I asked my mechanic if it wasn't necessary to clean the radiator, but he claims those radiators never block. He says I shouldn't worry about the fan, they make a lot of noise on this car because of their design but otherwise I should just let it work. I'm also puzzled about the water loss, because according to the car manual this shouldn't happen. Any ideas? Thanks.