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Home >> BMW >> 2017 >> 530i >> Repair and Diagnosis >> Electrical >> Charging Systems >> Engine Electrical System - Repair (G30) (3 Of 5) >> 12 51 Engine Wiring Harness >> 12 51 210 Replacing the wiring harness section for injectors and ignition coils (540i 2017-2020, 540i xDrive 2017-2020) >> Remove the wiring harness section for the ignition and injectors

Remove the wiring harness section for the ignition and injectors

Wiring harness section for the ignition and injectors

G14230489Courtesy of BMW OF NORTH AMERICA, INC.
WARNING: Working on 12 V electrical system.
Risk of short circuits! Risk of fire!
  • Make sure that there is no charger  connected to the jump start terminal in the engine compartment.
  • Detach battery ground lead from battery.
  • For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.

Preliminary work 

NOTE: RISK OF DAMAGE 
Damage to wires when disconnecting connectors and plug connections.
Sheared wires can cause a short circuit.
  • Do not pull on wires when disconnecting connectors and plug connections.