Your Audi thermostat serves an important purpose in your vehicle, which is helping to keep the temperature of the engine well below the danger point, at which the engine overheats and could cause damage to a variety of parts under the hood. The Audi thermostat controls the flow of coolant through the cooling system of your vehicle, and when it malfunctions, it sets the whole system awry. Most often, when an Audi thermostat malfunctions, it become stuck open or stuck closed, and there's really nothing you can do other than to replace it. The Audi thermostat is a fairly inexpensive part and it is quite easy to install, especially after you've done it once or twice. In cases where you've made performance modifications to your vehicle, you may have to use an Audi thermostat suited to a high performance engine, as depending on the specific types of modifications you've made, your engine temperature may run hotter than the average. However, whether you need a standard, stock type of Audi thermostat or you need a higher performing version, we're sure to have just what you need, as our online catalog feature a broad array of aftermarket parts and accessories, as well as an excellent selection of performance upgrade options and customization kits. Our efficient online catalog will present you with a list made up of only the Audi thermostat replacement options that are meant specifically for your vehicle, once you enter your basic vehicle information, and ordering your Audi thermostat will be just about as fast and hassle free. We have two safe and easy ways to order. You can use our secure online ordering system to place your Audi thermostat order or you can place your order by telephone, using our convenient toll-free number.