This little piece basically holds everything securely inside the gearbox – things like the gears themselves and some of the bearings. It’s a circular metal ring that fits into a groove, clamping down on those internal parts to prevent them from moving around or, worse, coming loose. It’s really about keeping things aligned and stable inside. Think of your gearbox as the heart of transferring power from the engine to the wheels. The lock ring is a critical component within that heart. It doesn’t directly make the car move, but if it fails, all that power transfer gets messed up. It’s tucked away inside, so you won’t see it doing anything on the outside, but it’s vital for how smoothly everything operates. It's important because without a good lock ring, those internal parts can shift, causing serious damage. You’ll notice if one fails pretty quickly – usually it’ll start with grinding noises coming from the transmission, or you might experience difficulty shifting gears. Sometimes it can even lead to a complete transmission failure. It acts like a shield, holding everything together under stress. A failing one means a really expensive repair down the line. You can find these pretty readily, even on sites like Fixparts Online, but getting a quality one is key. Don’t cheap out on something that protects such a pricey component. Professional-grade support: Lock Ring (MPN 020311381B) comes with 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 optimal performance. • Using genuine Audi parts helps maintain your vehicle's value and original quality. • Audi parts are rigorously tested to meet high safety and durability standards, giving you peace of mind. • You’ll get reliable performance and keep your Audi running like new with parts designed by the original manufacturer. Audi delivers excellence, FixParts Online delivers to your door.