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HOMESERVICE MANUALSBMW2020M240I XDRIVE 2D COUPEREPAIR AND DIAGNOSISELECTRICALHORNSGENERAL ELECTRICAL SYSTEM -- REPAIR (F22 & F23)61 00 GENERAL INFORMATIONENCODE/PROGRAM CONTROL UNIT(S) (2' SERIES COUPE AND CONVERTIBLE, 2017-2021)
2020 BMW M240i xDrive 2D Coupe

Encode/program control unit(s) (2' Series coupe and convertible, 2017-2021)

2020 BMW M240i xDrive 2D CoupeSECTION Encode/program control unit(s) (2' Series coupe and convertible, 2017-2021)
  • In order to avoid incorrect programming procedures and Check Control message, it is essential to always use the most recent version when working with the ISTA/P programming system.
  • Battery voltage must not undershoot 13.0 V  during programming. Connect battery charger prior to programming.

    Only use battery chargers* recommended by BMW for low voltage vehicle electrical system.

    *Sourcing reference applicable BMW Workshop Equipment Catalog

IMPORTANT: No high-voltage switch off is required in electric vehicles or hybrid vehicles for programming/coding.

The high-voltage system will be automatically switched off by the programming system.

programming routine via ISTA/P: 

  • Connect the battery charger to the vehicle.
  • Connect the programming system with the vehicle.
  • Determine the action plan.
  • Accept and carry out programming/encoding action plan, if necessary unlocking control unit.
  • Observe the reworking list!
  • If applicable, connect the workshop system to the vehicle, depending on the reworking list. Perform brief test and delete fault memory.
NOTE: A switch to the workshop system may not necessarily be required with the integration of the service functions and the "Fault memory deletion" function in ISTA/R Check the rework list accordingly!
  • The information about programming the workshop system and the corresponding notes in the user documentation must be observed.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.