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Home >> BMW >> 2017 >> 530i >> Repair and Diagnosis (Single Page) >> Electrical >> Charging Systems >> Engine Electrical System - Repair (G30) (4 Of 5) >> 12 51 Engine Wiring Harness >> 12 51 240 Remove and install/replace Module 2, sensor system engine wiring harness (540i 2017-2020, 540i xDrive 2017-2020) >> Removing the left wiring harness section for the sensor system 2

Removing the left wiring harness section for the sensor system 2

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 

Left wiring harness section for sensor system 2 

G14232284Courtesy of BMW OF NORTH AMERICA, INC.
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.