This BMW 3 or 4 series android head unit have upgraded to the latest BMW ID7 menu. Before ID6 UI is still available, you can choose the style you like. It doesn’t need to update software, just enter into factory setting freely.
Low-voltage DC electricity is converted into high-voltage electricity, with voltages reaching tens of thousands of volts, which breaks through the ionization of air through the spark plug inside the cylinder to generate electric sparks
The 4 Wire Heated Oxygen Sensor is located in the vehicle exhaust system. Its purpose is to measure the level of unburned oxygen in the exhaust by changing the voltage and provide this information to the engine control computer.