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What does ext mean on the car dashboard?

1 Answers

DeLucia

07/29/25 7:08pm

The ext on the car dashboard stands for external temperature, which is the outdoor temperature. In winter, it may change to a snowflake symbol to indicate that the temperature has exceeded the highest safe value of the coolant, serving as a safety warning for overheating. Ext is the abbreviation for external-temperature. If the car dashboard displays ext 80 degrees, it means the external temperature is 80 degrees. Here are some related introductions: Damaged car thermostat: The coolant only circulates in a small loop without dissipating heat through the radiator; the car cooling fan does not turn on, the car temperature control switch is not activated, or the water temperature sensor is malfunctioning. Car water pump failure: The impeller slips or gets stuck, causing the belt to break; insufficient coolant or radiator leakage. High oil pressure: Incorrect ignition and high oil pressure can cause the car water temperature gauge reading to differ from the actual temperature. How to handle high car water temperature: First, slow down and pull the car to the side of the road. Do not rush to turn off the engine; instead, keep it idling for a while. Put on gloves, place a wet cloth over the radiator cap, and slightly loosen the cap to allow steam to slowly escape. After the radiator pressure drops, add cool water or antifreeze.

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