Seals are all about keeping things out – water, dirt, dust, sometimes even air. They create a barrier between two surfaces that meet. They can be made of rubber, plastic, or other materials, depending on what they’re sealing and the conditions they face. Basically, they fill gaps and prevent leaks. There are seals everywhere in a car. You'll find them around windows and doors to keep the weather out, around the engine to stop oil and coolant from leaking, around the fuel tank, and even in the suspension. They’re used in the brake system, steering, and transmission too. Any place where two parts come together that shouldn’t let anything pass, there's usually a seal. Think of it like a gasket, but seals are often more focused on keeping external things out rather than fluids contained within an engine, though sometimes they do both. If a seal fails, you’ll notice if it’s a window or door pretty quickly – water getting in, wind noise. But sometimes it's not so obvious at first. A leaky fuel tank seal is a fire hazard, obviously. A bad engine seal can lead to oil leaks, which can damage other parts and eventually lead to engine failure. Seals really act like a shield protecting more expensive components. Replacing a seal is almost always a lot cheaper than replacing what it’s protecting. You can find a good selection of these at places like Fixparts Online, and they’ve got diagrams to help you find the right one for your vehicle. Ignoring a failing seal almost always makes a bigger, more expensive problem down the line. More than just a part: Seal (MPN 8U0821521) includes a 12-month warranty!

About Audi

Audi is a leading German automaker celebrated for crafting high-performance, luxury vehicles that combine advanced technology, elegant design, and exceptional driving experiences.

Why Choose Audi?

• Audi parts are made specifically for your vehicle, ensuring a perfect fit and reliable performance. • Using genuine Audi parts helps maintain your vehicle’s original quality and resale value. • Audi parts are rigorously tested to meet high safety and performance standards, giving you peace of mind. • We offer a wide range of Audi parts, so you can easily find what you need to keep your car running smoothly. Performance you can rely on – Audi parts from FixParts Online.