What does 'ch' mean on the dashboard?

[LeHolden]

The 'ch' on the dashboard refers to the water temperature gauge. The water temperature is indicated from C to H. 'C' represents 60 degrees Celsius, and when the needle points to 'C', it means the water temperature has reached 60 degrees. The red 'H' mark indicates a temperature of 110 degrees Celsius, and the span from 60 to 110 degrees allows estimation of the water temperature. Below are reasons for excessively high water temperature: 1. Insufficient coolant: Coolant leakage or low coolant levels can cause the engine water temperature to rise. Regularly check the coolant level and top it up to the appropriate level if necessary. 2. Thermostat failure: The thermostat automatically adjusts the amount of coolant entering the radiator based on the coolant temperature, changing the coolant circulation range to regulate the cooling system's capacity and ensure the engine operates within the proper temperature range. If the thermostat fails, the car's cooling system may not engage in a major circulation, leading to increased water temperature.