What does the BMW 5 Series outdoor temperature display mean?

[DeFinley]

This is to alert the driver that the external temperature is low, warning of potential road icing and advising cautious driving. Start slowly by gently lifting the clutch and applying gradual throttle: If wheel slippage occurs during startup, engage a higher gear than usual. For example, passenger cars can use second gear to start, while unloaded trucks can use third gear. Release the clutch more slowly than normal, and adjust the driving force primarily through partial clutch engagement. Maintain low and steady speed while driving: Since braking distance increases with speed, controlling vehicle speed and maintaining a greater safe distance from the vehicle ahead are crucial when driving on icy roads. Generally, the safe following distance should match the speed in meters - for example, maintain 30 meters distance at 30 km/h.