How Many Degrees Does Each Mark on the Temperature Gauge Represent?
2 Answers
Each small mark on the car temperature gauge represents 15 degrees, while each large mark represents 30 degrees. Here are the detailed explanations: 1. Car Temperature Gauge: The 'C' on the car temperature gauge stands for 60 degrees, and the red 'H' mark represents 110 degrees. The span from 60 to 110 degrees helps estimate the approximate temperature indicated by the gauge. 2. Possible Reasons for Rising Car Temperature: If the temperature gauge pointer reaches above the red line, it indicates a problem with the car engine's cooling system. Continuing to drive under such conditions may lead to engine damage. The direct cause is poor engine cooling. For example, small-displacement cars climbing hills with air conditioning on in summer increase the engine load. Prolonged use without cleaning the internal and external dirt of the radiator affects the cooling water circulation and heat dissipation. Damaged fans or other cooling components failing to assist the radiator in time can cause the cooling water in the radiator to reach boiling point.
I've studied car dashboards for quite some time, and each mark on the coolant temperature gauge doesn't actually represent a fixed temperature value. In design, it functions similarly to an analog thermometer—the needle position is driven by the sensor reading the coolant temperature. When starting a cold engine, the lower end (e.g., the first mark) might represent around 40 to 50°C; during normal operation, the needle typically rests in the middle range, mostly between 80 to 90°C. If the needle moves near the hot end, it could indicate 100°C or even up to 120°C. The key point is that calibrations vary across different car brands—each small mark may represent a temperature difference of 5 to 20°C, but it's not linear, meaning the temperature gap may widen toward the hot end. Don't focus too much on the exact degrees per mark; instead, pay attention to needle stability: keeping it consistently in the middle zone is safe. If it deviates significantly, inspect the cooling system to prevent engine overheating damage. Regular maintenance of coolant and the radiator ensures more reliable performance.
