How to View the Hidden Coolant Temperature Gauge on a BMW?

[VanEva]

Press and hold the trip reset button for 10-15 seconds. There are two main reasons for the coolant temperature gauge showing excessively high temperature: 1. Insufficient Coolant: A decrease in coolant due to leakage can cause the temperature to rise. In this case, check for any signs of coolant leakage. If leakage is found, repair the leaking components as soon as possible. If there is no leakage, promptly add the appropriate coolant. 2. Issues with the Cooling Fan: Problems with the cooling fan can lead to increased coolant temperature. When the vehicle is running at high speeds, the heat generated cannot be effectively transferred to the coolant, impairing heat dissipation. This results in a rise in coolant temperature, potentially leading to overheating.