Genuine OEM Audi Coolant Pump Relay, part number 1J0959485A. This electrical relay controls the operation of the coolant pump, which is essential for circulating coolant and maintaining optimal engine temperature. It is typically located within the vehicle's electrical system, often in a fuse box or relay panel. This small, rectangular component weighs 0.056 kg and measures approximately 0.062m in length. Choosing a genuine OEM relay ensures correct electrical specifications, reliable switching, and compatibility with the vehicle's electrical system, preventing malfunctions that could lead to engine overheating.