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Home >> BMW >> 2018 >> M240i 2D Convertible, Automatic Trans >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Engine Electrical System -- Repair (F22 & F23) >> 12 14 Engine Control Module, Sensors >> 12 14 550 Replacing the control unit of the Digital Motor Electronics (After vehicle diagnosis) (M240i and M240i xDrive coupe/convertible) >> Removing the DME control unit

Removing 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 

NOTE: TECHNICAL INFORMATION 
Follow instructions for removing and installing control units.
For additional information see: 12 00... Notes on removal and installation of control units
NOTE: TECHNICAL INFORMATION 
In a warranty case, you must always provide a fault memory printout with the defective part, even if the fault memory does not contain an entry.
G12729224Courtesy of BMW OF NORTH AMERICA, INC.