BMW 3: Entertainment

 External temperature

General information If the indicator drops to +37 ℉/+3 ℃ or lower, a signal sounds. A Check Control message is displayed. There is an increased risk of ice on roads. Safety information Warning Even at temperatures above +37 ℉/+3 ℃ there can be a risk of icy roads, for instance on bridges

 Monitoring functions

High-voltage interlock loop The SME control unit evaluates the signal of the high-voltage interlock loop and checks whether there is an open circuit with this circuit. In the event of an open circuit, the battery management electronics control unit can cause the high-voltage system to perform a qu