Locate Audi Coolant thermostat replacement & Audi Coolant thermostat price. Purchase Audi Thermostat. Discover Audi Engine thermostat. Maintaining the thermostat in your Audi is crucial for engine performance and longevity. Regular checks for proper opening and closing, coupled with coolant system flushes, can extend the lifespan of this component. Look for signs such as erratic temperature readings or overheating, which may signal the need for a replacement. When selecting a new thermostat, opt for OEM-grade options that promise precise temperature control and durable materials. Installation is straightforward for those with mechanical aptitude, but always ensure it's seated correctly to avoid leaks. With the right care, your Audi's thermostat will ensure optimal running temperatures, safeguarding your engine's health.