BMW 5 Series Owners & Service Manuals

BMW 5 Series: Overview of voltage supply

System wiring diagram

Overview of voltage supply
Voltage supply

  1. Digital Motor Electronics (DME)
  2. Starter motor
  3. Alternator
  4. Power distribution box, engine compartment
  5. Jump start terminal point
  6. Auxiliary battery, engine compartment
  7. Power distribution box, auxiliary battery, engine compartment
  8. Power distribution box, front right
  9. Body Domain Controller (BDC)
  10. Fuse in the Body Domain Controller
  11. CAN terminator
  12. Power distribution box, rear
  13. Fuse in the power distribution box, battery, right
  14. Power Control Unit PCU 500 W
  15. Battery power distribution box
  16. Safety battery terminal
  17. Battery
  18. Power distribution box, front left (PHEV version only)



    Overview of luggage compartment Battery Power distribution box, battery, right Power distribution box, rear Power Control Unit (PCU) 500 W Power Control Unit (PCU) 150 W Power distribution box


    AGM batteries are used for the voltage supply in the G30. There may by 1, 2 or 3 batteries in the vehicle depending on the engine version and vehicle equipment. Starter battery in the luggage comp

     Power distribution box, front right

    Power distribution box, front right A relay for terminal 30B is installed in the front right power distribution box. Consumers are supplied with terminal 30, terminal 30B and terminal 15N and prov


     Parking brake

    Concept The parking brake is used to prevent the vehicle from rolling when it is parked. Safety information Warning An unsecured vehicle can begin to move and possibly roll away. There is a risk of accident. Before exiting, secure the vehicle against rolling. In order to ensure that the vehicle is

     Indicator/warning lights

    Concept Indicator/warning lights in the instrument cluster display the status of some functions in the vehicle and indicate when a malfunction is present in the monitored systems. General information The indicator/warning lights can light up in a variety of combinations and colors. Several of the l

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