When you start your car, the engine temperature rises. However, an abnormally high temperature signals trouble. Internal combustion engines work best at 93°C. If they overheat, fast-moving metal parts can melt, leading to engine failure.
Thankfully, modern cars have advanced cooling systems. These systems use antifreeze—a chemical coolant—to regulate engine temperature. They also include a water pump, hoses, a thermostat, and a fan to maintain optimal performance. Yet, issues like low coolant, a burst hose, or a faulty radiator can cause overheating or stalling.
Summer puts extra strain on cooling systems. High temperatures and traffic jams reduce airflow, causing the engine to overheat. A well-calibrated system can handle idling in hot weather, but low coolant levels or a broken fan belt can quickly raise temperatures.
Before driving, pop the hood and check the coolant level. Ensure hoses are intact and free of leaks. Generally, flush the radiator and replace coolant every two years using a chemical cleaner to remove buildup. In summer, use a 1:1 coolant-to-water ratio—or buy pre-mixed coolant.
If you notice a puddle under your stopped car, coolant may be leaking. In that case, visit a repair shop promptly to address the issue. Regular maintenance keeps your engine cool and reliable, even in challenging conditions.