Explore Kia Engine Coolant Temperature Sensor & Best Kia Temp Senders. Replace Kia Engine Coolant Temperature Sensor Location. Maintaining the coolant temperature sensor in your Kia is crucial for engine efficiency and longevity. Regularly inspect the sensor for corrosion or damage, and be alert for telltale signs of failure such as erratic temperature readings or check engine lights, which may indicate it's time for a replacement. To maximize durability, choose a high-quality sensor with robust construction that matches your Kia model's specifications; options include brass for better conductivity or plastic for resistance to corrosion. Understanding the pivotal role this sensor plays in monitoring engine temperature ensures you select one that seamlessly integrates with your vehicle's system, ensuring optimal performance. For installation ease, ensure the engine is cool and the area around the sensor is clean before starting the replacement.