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 CARSECTION 793 (ENGINE ELECTRICAL SYSTEM - REPAIR)
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
Section 793 (Engine Electrical System - Repair)
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION Section 793 (Engine Electrical System - Repair)
WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
- 00 troubleshooting
- 12 ignition wires, spark plugs
- 13 ignition coil
- 14 electronic switching or control unit
- 12 14 521 Replacing crankshaft pulse generator (N52, N52K, N51, N53)
- 12 14 523 Replacing inlet camshaft pulse generator (N52, N52K, N51, N53)
- 12 14 524 Replacing exhaust camshaft pulse generator (N52, N52K, N51, N53)
- 12 14 600 Removing/replacing knock sensors (N52, N52K, N51)
- 12 14 700 Coding control module (DME / DDE)
- 12 14 705 Programming control unit (DME / DDE)
- 31 alternator with drive and mounting
- 32 regulator
- 41 starter with mounting
- 61 oil pressure-oil temperature gauge
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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.