This pump creates vacuum – basically, it sucks air out – and maintains a consistent level of vacuum in your braking system. It's a mechanical device, usually driven by the engine, and it’s responsible for powering things like your power brakes and sometimes other systems that rely on vacuum. It doesn't actually create the initial vacuum, it maintains it after the engine stops, and compensates for any leaks. Think of it as the heart of your vacuum – assisted brake system. It’s connected to the master cylinder and, through that, to the brake boosters. It's also often connected to things like your HVAC controls – some doors and actuators rely on vacuum to operate properly. Some vehicles even use vacuum for cruise control. It’s a pretty important component, and on many modern cars it’s essential for those features to work correctly. Well, if this pump fails, you’ll notice if you have power brakes. Your brake pedal will feel really hard, requiring a lot more effort to stop the vehicle. It's like losing a helper – you're still able to stop, but it takes significantly more force. Beyond that, other vacuum – operated systems might start to malfunction too. You might have issues with your heater controls, or even cruise control could stop working. It acts like a shield, protecting these components and keeping them functioning smoothly. If you're looking to replace one, sites like Fixparts Online usually have a good selection. Competitive edge: Pump (MPN 420145157A) includes a 12-month warranty!

About Audi

Audi is a premium automotive brand from Germany known for its innovative technology and sophisticated design. Based in Germany, Audi continues to set industry standards for performance and luxury.

Why Choose Audi?

• Audi parts are designed specifically for your vehicle, ensuring a perfect fit and optimal performance. • Using genuine Audi parts helps maintain your vehicle’s value and original quality. • We offer a wide range of parts, from everyday maintenance items to complex components. • Audi parts are rigorously tested to meet high standards for safety and durability, giving you peace of mind. Audi – trusted quality, available at FixParts Online!