What is the normal temperature range for a car's coolant temperature gauge?

[DelAdam]

The normal temperature for a car's coolant temperature gauge is 90 degrees Celsius. As long as the needle stays within the normal scale range, it is considered normal. The gauge ranges from C to H, where C represents 60 degrees Celsius. When the needle points to C, it indicates the coolant has reached 60 degrees. The red H mark represents 110 degrees Celsius. If the needle enters the red zone, it means the coolant is overheating. Prolonged overheating can lead to "boiling over," where the engine coolant boils, causing the radiator to expand and potentially damaging the engine due to overheating. The coolant temperature gauge displays the temperature of the engine coolant in degrees Celsius. Its sensor is a thermistor-type sensor, which is threaded into the engine's coolant passage. The thermistor determines the amount of current flowing through the gauge's coil, which in turn drives the movement of the needle.