Mercedes AC Expansion Valve - Nissens 999393

Product Information

An A/C expansion valve's primary function is to regulate the flow of refrigerant into the evaporator, where it absorbs heat and cools the air inside the vehicle. The expansion valve reduces the pressure of the refrigerant, allowing it to expand and cool before it enters the evaporator coils. This process is essential for efficient cooling and overall performance of the A/C system.

• Poor Cooling Performance: One of the most common symptoms of a failing expansion valve is reduced cooling efficiency. The air coming from the vents may not be as cold as expected, even when the A/C system is running
• Frost or Ice Build-Up: If the expansion valve is stuck open, too much refrigerant may enter the evaporator, leading to excessive cooling and ice formation on the evaporator coils. This can cause airflow restrictions and further decrease cooling efficiency

About Nissens

Over the years, Nissens has invested significant resources in research on and development of engine cooling and climate system components for the automotive segment. More than 95 years of thermal know-how and manufacturing experience mean that we are able to meet the needs for a comprehensive range of high-quality spare parts, while at the same time, being a market educator for technical insight into the systems field.

As a market-leading manufacturer of most essential thermal system components, Nissens offers a comprehensive product portfolio with up to 97% car park coverage. Covering everything from the fast-moving to the more exotic parts of the European, Asian, and American vehicle brands, Nissens is the ideal choice for quality, range, and expertise.

Every time it involves your thermal systems, Nissens is right there with you - contributing to the comfort and safety of your journey.