What does it mean when BMW displays a coolant warning?

[StKaden]

When a BMW displays a coolant warning, it is alerting the driver that there is an abnormality in the engine or its control system, requiring maintenance. If the coolant warning light comes on, pull over safely as soon as possible and turn off the engine. After the engine has cooled down, open the hood to inspect. Coolant is a special fluid containing additives, primarily used in liquid-cooled engine cooling systems. It provides excellent performance in preventing freezing in winter, boiling in summer, and inhibiting scale and corrosion year-round. How to determine if coolant is low: Check the coolant warning light on the dashboard. If it is illuminated, it likely indicates low coolant, though it could also be due to excessively high cylinder temperatures. Inspect the coolant reservoir. If the fluid level is below the minimum mark (MIN), do not continue driving; add coolant promptly. Check the fluid level markings on the coolant reservoir. The normal coolant level should be between the maximum and minimum marks. If the coolant is below the minimum mark, it indicates a shortage.