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 MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 8 (ENGINE ELECTRICAL SYSTEM - REPAIR (N51))ELECTRONIC SWITCHING OR CONTROL UNIT12 14 550 REPLACING CONTROL UNIT (DME)
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
12 14 550 Replacing Control Unit (DME)
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 12 14 550 Replacing Control Unit (DME)
WARNING: This page is about a different variant/trim than selected.
Necessary preliminary tasks:
- Switch off ignition
- Disconnect battery . See 12 00... Instructions For Disconnecting And Connecting Battery .
- Remove microfilter housing . See 64 31 081 REMOVING AND INSTALLING/REPLACING MICROFILTER HOUSING (UPPER SECTION) and 64 31 092 REMOVING AND INSTALLING/REPLACING MICROFILTER HOUSING (LOWER SECTION) .
IMPORTANT:
Follow instructions for removing and installing control units
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.