BMW 3 Owners & Service Manuals

BMW 3: System wiring diagram

BMW 3 Series G20 (2018-2025) Training manual / Drive Components / Fuel supply / System wiring diagram

Fuel supply
G20 PHEV, system wiring diagram for fuel supply

  1. Integrated supply module
  2. Digital Motor Electronics (DME)
  3. Shutoff valve purge air line (only for US version)
  4. Body Domain Controller (BDC)
  5. Fuel filler flap lock
  6. Power distribution box, rear
  7. Fuel pump control electronics
  8. Hybrid pressure refuelling electronic control unit (TFE)
  9. Fuel tank isolation valve (only for US version)
  10. Electric fuel pump
  11. Pressure/Temperature sensor
  12. Fuel tank isolation valve (only for European version)
  13. Fuel tank shutoff valve (only for US version)
  14. Lever sensor for fuel level
  15. Advanced Crash Safety Module (ACSM)
  16. Power window motor, driver's side (supply for LED refuelling button )
  17. Refuelling button
  18. Instrument cluster (KOMBI)
  19. Power distribution box, front left

In the event of a crash, the fuel pump control electronics immediately disconnect the power supply to the fuel pump drive. The fuel pump control electronics receive the information for this from the Advanced Crash Safety Module ACSM.

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     Refuelling

    The pressurized fuel tank must be vented before refuelling. To initiate the refuelling procedure, the button in the driver's door first needs to be operated. The button is not active when the vehicl

     Automatic transmission

     Introduction

    The automatic transmission GA8P75HZ of the G20 PHEV, which is based on the transmission introduced in the F07 at the end of 2009 (GA8HP70Z), is also manufactured by ZF. If you have already take

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     Concept, General information, Safety information

    Concept The system helps to avoid imminent side collisions. General information Four radar sensors in the bumpers monitor the space next to the vehicle from a minimum speed of up to approx. 130 mph/210 km/h. The minimum speed is country-specific and is displayed in the menu for the intelligent Saf

     DSC Dynamic Stability Control

    Concept Within the physical limits, the system helps to keep the vehicle on a steady course by reducing engine speed and by braking the individual wheels. General information DSC detects the following unstable driving conditions, for instance: Fishtailing, which can lead to oversteering. Loss of

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