4F0820521A Audi REGULATOR

This little guy controls the flow of refrigerant through your AC system. Think of it like a valve that adjusts how much coolant gets to the compressor. It doesn't make the cold air, it just makes sure the compressor gets the right amount of stuff to do its job efficiently. It manages the pressure, and helps maintain the correct operating conditions for the whole AC system. It sits in the high – pressure side of your AC system, usually close to the compressor itself. It takes the refrigerant coming from the condenser and lowers the pressure before it gets to the compressor. This helps the compressor work smoothly and keeps things from overheating. It’s kind of a middleman between the high – pressure and low – pressure sides of the system. Well, if this regulator fails, you’ll notice if your AC starts blowing warm, or the compressor starts cycling on and off rapidly. A bad regulator can really strain the compressor, and eventually cause it to fail – which is a much more expensive fix. It acts like a shield for the compressor, protecting it from excessive pressure. If it’s leaking, you might also hear a hissing sound, or see oily residue around the component. You can find these pretty readily, Fixparts Online has a good selection, but getting the right one is key. A failing regulator can also lead to poor fuel economy, because the compressor has to work harder. Get more for your money: REGULATOR (MPN 4F0820521A) is covered for 12 months!

About Audi

Audi is a premium automotive brand from Germany known for its innovative technology and sophisticated design. Based in Germany, Audi continues to set industry standards for performance and luxury.

Why Choose Audi?

• 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. Audi delivers excellence, FixParts Online delivers to your door.