Importance of the Radiator Cap

The radiator cap is a small yet essential component within a vehicle's cooling system. Its primary function is to maintain the optimal pressure and regulate coolant flow between the radiator and the overflow tank. By doing so, it ensures that the engine remains at an ideal operating temperature, preventing it from overheating. The radiator cap acts as a pressure release valve, allowing excess pressure to escape to avoid damage to the radiator and other cooling system components.

How the Radiator Cap Works

The cap is equipped with a spring-loaded valve that opens when a set pressure is exceeded. This allows the excess coolant to flow into the overflow tank. Once the system cools down, the coolant is drawn back into the radiator, maintaining the correct level. This cycle is critical for the efficient functioning of the cooling system.

Risks of a Faulty Radiator Cap

If the radiator cap is broken or malfunctioning, it can cause a range of issues. A failed cap might not maintain the necessary pressure, leading to an overheated engine. It can also cause coolant loss or air entering the system, resulting in inadequate cooling. Ultimately, neglecting a faulty radiator cap can lead to severe engine damage, costly repairs, or even complete engine failure.

Compatible Car Models

• Lancer Sportback
• Rvr
• Eclipse Cross
• L200
• Lancer
• Delica D:5/Space Wagon
• Outlander
• Galant Fortis Sportback
• Outlander Sport
• Outlander Phev
• Outlander-Phev
• Delica D:5
• Galant Fortis/Lancer Evolution
• L200
• Triton
• Strada
• Asx
• Minicab
• Town Box
• Town Box Wide
• Ek Space
• Eclipse Cross <Phev>
• Ek-Series