BMW 3 Owners & Service Manuals

BMW 3: System wiring diagram

BMW 3 Series G20 (2018-2024) 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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     Buttons for the central locking system

    General information In the event of a severe accident, the vehicle is automatically unlocked. The hazard warning system and interior lights come on. Overview Buttons for the central locking system. Locking Press the button with the front doors closed. The fuel filler flap remains unlocked. The

     Overview

    Buttons on the steering wheel With steering and traffic jam assistant: Cruise control on/off. With steering and traffic jam assistant: Select function. Without steering and traffic jam assistant: Cruise control on/off. Store current speed. Speed Limit Assist: take over suggested speed manual

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