This joint basically allows your suspension to move up and down, and also lets it steer. It connects the control arm to the steering knuckle—that's the part that holds the wheel and brake assembly. It’s a pivoting point, so it allows for that range of motion while still keeping everything secure. It handles a lot of stress from bumps in the road, turning, and even braking. Think of it as a critical link in your suspension and steering system. The control arms themselves are what hold your wheels in place, and this joint is where the movement happens. It lets the wheel move up and down with the road while still keeping the tire properly aligned. It works with all the other suspension parts—shocks, springs, everything—to give you a smooth ride and good control. If this joint goes bad, you’ll notice it. You’ll likely feel vibrations in the steering wheel, especially at higher speeds, or hear clunking noises when you go over bumps. It can also cause uneven tire wear, because the wheel won't be staying properly aligned. Really, it acts like a shield protecting the rest of your steering and suspension from impact. Ignoring it can lead to bigger, more expensive problems down the line—like damage to the steering knuckle or even a loss of control. We carry a good selection of these at Fixparts Online, and getting a new one installed when you first notice issues is the smart move. Premium parts, premium warranty: Joint (MPN 4G0407689C) has a 12-month guarantee!

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 – trusted quality, available at FixParts Online!