This valve basically controls the flow of refrigerant – that’s the stuff that actually makes the cold air – through the compressor. It opens and closes to allow the refrigerant in and out at the right times, maintaining the right pressure in the system. Think of it like a gatekeeper for the cooling process. There are different types, some manage high – pressure fluid, some manage low – pressure, but they all do that core job of directing the refrigerant. It’s a critical piece of the AC system. The compressor is the heart, and this valve is a major artery. It sits between the compressor and other components, making sure the refrigerant gets where it needs to be, when it needs to be there. Without proper function, the whole system struggles. It's usually located somewhere near the compressor itself, often on the suction or discharge side. Well, if this valve fails, you’ll notice if your AC isn’t blowing as cold as it used to, or maybe it's not blowing at all. It can also cause the compressor to work way too hard, and that’ll lead to bigger, more expensive repairs down the line. A failing valve often causes inconsistent cooling. It acts like a shield protecting the compressor from damage. You can find a replacement part pretty easily – places like Fixparts Online have a good selection. Getting a new one installed before things get worse can save you a lot of headache and money. Future-proof your vehicle: Valve (MPN 4H0820513A) has a 12-month warranty!

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• Audi parts are specifically designed for your vehicle, ensuring a perfect fit and optimal performance. • Using genuine Audi parts helps maintain your car’s value and original quality. • Audi parts are rigorously tested to meet high safety and durability standards, giving you peace of mind. • We offer a wide selection of parts and accessories, so you can find exactly what you need to keep your Audi running smoothly. FixParts Online – Your Trusted Source for Quality Audi Auto Parts.