This adapter basically connects the AC compressor to the AC lines—the hoses that carry the refrigerant. It's a coupling point. It doesn’t do anything actively like compress or cool, it just provides a secure connection. Sometimes it’s a straight connection, sometimes it changes the line size or angle. They come in a bunch of different designs depending on the vehicle and the compressor setup. Think of it as a critical link in the AC system. The compressor creates the pressure, the refrigerant flows through those lines, and this adapter makes sure that connection is solid. Without a good seal here, you’ll lose refrigerant, and the AC just won’t cool effectively. It sits right where the high – pressure line connects to the compressor body, so it’s exposed to a lot of stress and heat. Well, refrigerant is expensive and environmentally unfriendly, so a leak is a big deal. A failing adapter will cause that leak. Beyond that, if it fails completely, you’ll have no AC. You’ll notice if it starts to go because you might hear a hissing sound near the compressor, or your AC will start cooling less and less. They can corrode over time, especially with road salt, or the seals can dry out and crack. Honestly, it’s one of those parts that’s small and relatively inexpensive, but a real headache if it fails. We carry a lot of different ones at Fixparts Online, and it's usually best to replace it when you're doing other AC work, just to be safe. Competitive edge: Adapter (MPN 3C1820215) includes a 12-month warranty!

About Volkswagen

Volkswagen is a world-renowned automaker delivering innovative vehicles that combine performance, practicality, and cutting-edge design.

Why Choose Volkswagen?

• Get parts made specifically for your Volkswagen, ensuring a perfect fit and reliable performance. • Volkswagen parts are quality-tested to meet strict standards, so you can be confident in their durability. • Using genuine Volkswagen parts helps maintain your vehicle’s value. • We offer a wide range of parts, from routine maintenance items to more complex components, all easily accessible. FixParts Online – Your Trusted Source for Quality Volkswagen Auto Parts.