They’re basically retaining rings. Think of them like a really simple, strong clamp. They fit into a groove on a shaft or in a housing and hold something in place – often a piston pin, a valve stem, or other moving parts inside the engine. They keep things from sliding around where they shouldn't. They come in two main types – internal and external, depending on whether they fit inside a hole or around the outside of something. Inside the engine, they’re everywhere. They're used on things like the piston pins which connect the piston to the connecting rod. They also hold valves in place. Basically, anywhere you have a shaft or rod moving inside something else, you’ll likely find a circlip keeping it all lined up and secure. It's a seemingly small part that contributes to major mechanical function. If a circlip fails, things can quickly go wrong. If one lets go on a piston pin, you’re talking about potentially catastrophic engine damage. You’ll notice if one breaks – usually through a knocking sound, loss of power, or engine failure. They're designed to be incredibly strong for their size, but they do wear out, or can be damaged during engine work. Luckily, they're cheap to replace, and it's much better to address it proactively than wait for a bigger problem. You can find all sorts of sizes and types at places like Fixparts Online, so make sure you get the right one for the job. It's a small part with a big responsibility. Competitive edge: Circlip (MPN 06A107441) comes with a 12-month warranty!

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• Genuine Volkswagen parts are designed specifically for your vehicle, ensuring a perfect fit and optimal performance. • Using Volkswagen parts helps maintain your vehicle's original quality, safety features, and value. • Our parts are rigorously tested to meet Volkswagen’s high standards, giving you peace of mind and long-lasting reliability. • You'll find a wide range of parts and accessories, backed by Volkswagen's warranty and expert support. Drive with confidence – choose Volkswagen parts at FixParts Online.