Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2023M240IREPAIR AND DIAGNOSISELECTRICALCHARGING SYSTEMSENGINE ELECTRICAL SYSTEM -- REPAIR (G42)12 14 CRANKSHAFT SENSOR, CAMSHAFT SENSOR, KNOCK SENSORS, ENGINE CONTROL MODULE12 14 550 REPLACING THE ENGINE CONTROL MODULE (DME) (AFTER VEHICLE DIAGNOSIS)INSTALLING THE DME CONTROL UNIT
2023 BMW M240i
Installing the DME control unit
2023 BMW M240iSECTION Installing the DME control unit
- Feed in and install DME control unit (1).
The locks (arrows) must engage audibly.
- Connect connectors (1) and lock.
All connectors (1) must engage audibly.
- Feed in the cover (1) in the guides and install it.
Follow-up work
- Refer to INSTALLING ACOUSTIC COVER .
- Refer to ACTIVATING ELECTRICAL SYSTEM .
- Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .
- Refer to IF THE DME CONTROL UNIT IS REPLACED: PROGRAM/CODE DME CONTROL UNIT .
RENDER: 1.0x
NO RELATED
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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.