Basically, this fan’s job is to pull air through the radiator. The radiator is where your engine gets cooled down, and the fan helps move that cooling air when the car isn’t moving fast enough to get airflow naturally. It’s usually electrically powered, kicking on when the engine gets warm enough, or sometimes it’s belt – driven along with other engine components. Some newer vehicles have variable speed fans, adjusting how much cooling is needed. Think of it as part of your engine’s cooling system, which is absolutely vital. Coolant flows through the engine, absorbing heat. Then it goes to the radiator to release that heat. The fan ensures there’s always enough air moving through the radiator fins to get rid of the heat, even when you’re idling in traffic or going slowly. Without that airflow, the coolant can’t cool down properly. If this fan fails, things heat up fast. You’ll notice if it’s gone bad – usually your temperature gauge will climb higher than normal, especially when you’re not driving at speed. It can cause overheating, which can lead to serious engine damage – warped heads, blown gaskets, even a seized engine. It's a pretty critical part. You can find replacement fans and all the parts you need over at Fixparts Online, or of course we can order one for you here. It acts like a shield against overheating, really. Ignoring a failing fan is a quick way to a really expensive repair bill. Support that lasts: Fan (MPN 4L1820021B) includes a 12-month warranty!

About Audi

Audi is a renowned German automobile manufacturer known for its innovative engineering, luxurious designs, and cutting-edge technology, delivering premium vehicles that blend performance and sophistication.

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. Performance you can rely on – Audi parts from FixParts Online.