BMW 3 Owners & Service Manuals

BMW 3: Overview of charging options

The high-voltage battery unit of the G20 PHEV can generally only be charged by alternating current (AC charging) at a maximum charging power of 3.7 kW. The charging option for the high-voltage battery unit in the G20 PHEV is generally determined by the country-specific charging infrastructure.

The charging powers and the resulting charging times always relate to the power grid and not the charging power used to charge the high-voltage battery unit. The charging power is always less than the available power on the grid. The charging time is a result of the remaining capacity in the high-voltage battery unit, as well as the supplied, market-dependent charging power, taking into consideration the available charging equipment.

Charging with direct current (DC charging) is not supported by the G20 PHEV.

Electric Vehicle Supply Equipment (EVSE)

Components outside of the vehicle that support charging are referred to as the "Electric Vehicle Supply Equipment (EVSE)". "Electric Vehicle Supply Equipment (EVSE)" is thus an umbrella term for all the components and safety equipment that establish the connection to the A/C network and ensure electrical safety during charging. "EVSE" thus stands for the following components:

  • Charging plug
  • Charging cable
  • Wall plug, outlet
  • Wallbox
  • Charging station
  • Ground fault circuit interrupter (GFCI)
  • Disconnecting switch for phase (L1) and neutral conductor (N)
  • Communication circuits (pilot and proximity cables)
  • Display whether the AC voltage network is connected and available
  • Continuous or switched protective earth/ground (PE).

Work on the Electric Vehicle Supply Equipment, for example, the charging plug, charging cable, household sockets or charging stations can only be performed by suitably qualified electricians, and not by BMW Service employees.

The connection between the vehicle to be charged and the AC network is implemented by different variants depending on the EVSE.


     Standard charging cable

    The standard charging cable is designed for mobile use. All protection and communication devices of the standard charging cable are integrated in the so-called "in-cable control box". The volume and

     Charging stations

    Permanent charging station This version of the Electric Vehicle Supply Equipment must be installed permanently owing to its size and electrical requirements, e.g. at the house or in the customer's ga

     What must be observed when charging the high-voltage battery unit?

    It is not permitted to simultaneously charge the high-voltage battery unit and fill the fuel tank When the charging cable is connected, do not fill the fuel tank and keep a safe distance from high


     Steptronic transmission: BMW Digital Key

    Concept BMW Digital Key allows the vehicle to be unlocked and locked, as well as started, with a compatible smartphone. General information BMW Digital Key varies by country and may be unavailable. To unlock and start a vehicle with a compatible smartphone, a digital key must be installed on this s

     General information

    Rear entertainment allows occupants in the rear to access entertainment sources regardless of the driver's selection. Two screens, different media connections, and a CD/DVD/Blu-ray drive are available in the rear for this purpose. Rear entertainment also provides access to many iDrive functions. T

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