Why does my Fiat 1.9 turbo diesel engine overheats?

Your Fiat 1.9 turbo diesel engine may overheat due to several reasons, such as a malfunctioning thermostat that prevents coolant flow, a failing water pump that isn't circulating coolant effectively, or a clogged radiator that restricts heat dissipation. Additionally, low coolant levels or leaks in the cooling system can also lead to overheating. Regular maintenance and checks can help identify and resolve these issues before they cause significant engine damage.