This kit generally includes new seals, o – rings, and sometimes a new valve body itself. Basically, it's everything you need to rebuild or replace the expansion valve. The expansion valve’s job is to take the high – pressure liquid refrigerant coming from the AC compressor and reduce its pressure while controlling its flow into the evaporator. It's a pretty critical piece in making cold air. Think of it like this – the compressor squeezes the refrigerant, the condenser cools it down, and then the expansion valve meters it into the evaporator. The evaporator is where the cold air actually gets created. This valve ensures the right amount of refrigerant enters the evaporator, so you get maximum cooling without damaging the system. It's located somewhere between your high and low pressure lines, usually near the evaporator core inside the dash. If this valve starts to fail, you’ll notice if your AC isn’t blowing as cold as it used to, or you might get inconsistent cooling. Sometimes it’ll work fine for a bit, then suddenly stop. It can even cause the compressor to work too hard and potentially fail, which is a much bigger and more expensive repair. Replacing just the seals and o – rings in a kit is often much cheaper than replacing the entire valve assembly, especially if the valve body itself is still good. You can find these kits pretty easily, places like Fixparts Online have a good selection. It’s a crucial part of keeping your AC running efficiently, and tackling it yourself with a kit can save you a good bit of money. More than just a part: Repair Kit (MPN 4H0898967B) includes a 12-month warranty!

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• Audi parts are designed specifically for your vehicle, ensuring a perfect fit and optimal performance. • Using genuine Audi parts helps maintain your vehicle’s value and original quality. • We offer a wide range of parts, from everyday maintenance items to complex components. • Audi parts are rigorously tested to meet high standards for safety and durability, giving you peace of mind. Drive with confidence – choose Audi parts at FixParts Online.