These rings actually have a few jobs. Primarily, they seal the gap between the piston and the cylinder wall in your engine. They control the oil, keeping it from getting into the combustion chamber where it would burn and cause problems, and also scrape excess oil off the cylinder walls. They also help transfer heat from the piston to the cylinder wall, which helps keep things cool. Think of the piston rings as being right at the heart of what makes your engine run. The piston goes up and down inside the cylinder, and these rings are what maintain that seal. Without a good seal, you lose compression – that’s the power stroke that actually moves your car. They’re pretty fundamental. If these rings wear out or break, you’ll notice if you have issues like loss of power, increased oil consumption (you’ll be adding oil more often), blue smoke coming from the exhaust, or even just a generally rough – running engine. Essentially, it’s like having a leaky bucket; you’re losing pressure and efficiency. They act like a shield, preventing vital fluids from going where they shouldn't and keeping combustion gases contained where they need to be. Replacing them is often part of a larger engine rebuild, but you can definitely find individual rings if you just need to address a specific cylinder. You can find a good selection of piston rings at places like Fixparts Online, they usually have what you need for most makes and models. They’re not super complicated parts, but getting the right size and material for your engine is important. Smart choice: Piston Ring (MPN 4E0881493) is backed by 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. Audi delivers excellence, FixParts Online delivers to your door.