Body Electrical

Voltage Supply and Bus System
The vehicle electrical system of the E63/64 is essentially based on the electrical system of the E60. This documentation describes the differences in the power supply, bus systems and in the general vehicle electrical system compared to the E60.
In the E60/E63, an energy management function is responsible for the power requirements of the vehicle both while driving as well as when stationary.
The most important integral parts of the energy management system are:
^ Intelligent battery sensor IBS
^ Power management software in the digital motor electronics DME or digital diesel electronics DDE and in the IBS.
The power management controls the electric currents in the vehicle
^ Terminal 30g relay actuated by the car access system