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Home >> BMW >> 2021 >> M240i 2D Convertible, Standard Trans >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Engine Electrical System -- Repair (F22 & F23) >> 12 90 ECM Housing >> 12 90 150 Remove and install/replace control unit box (M240i and M240i xDrive coupe/convertible) >> Removing the holder for the DME control unit

Removing the holder for the DME control unit

Precondition 

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 

G12729313Courtesy of BMW OF NORTH AMERICA, INC.