Why does a car overheat sometimes?

A car can overheat for several reasons, including low coolant levels, a malfunctioning thermostat, or a damaged water pump. Insufficient coolant prevents proper heat dissipation, while a faulty thermostat may fail to regulate the engine temperature. Additionally, a blocked radiator or a broken fan can impede airflow, causing the engine to overheat. Regular maintenance and monitoring coolant levels can help prevent overheating issues.