The expansion valve is a critical component in your vehicle's air conditioning (AC) system. Its primary function is to control the amount of refrigerant that flows into the evaporator. By precisely metering this flow, it allows the refrigerant to expand and absorb heat from the cabin, thereby cooling the air. A properly functioning expansion valve is essential for maintaining the correct pressure and temperature within the AC system. This regulation prevents the evaporator from freezing over and ensures that the system operates at peak efficiency, delivering reliable and consistent cooling performance even on the hottest days. This particular expansion valve, part number 6461P5, is designed for specific PEUGEOT/CITROEN applications, ensuring a direct fit and compatibility with your vehicle's existing AC components. Replacing a faulty expansion valve can resolve issues such as poor cooling, intermittent AC operation, or unusual system pressures.
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