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 561 (ENGINE ELECTRICAL SYSTEM - REPAIR)IGNITION COIL12 13... IGNITION COIL FAULTS
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
12 13... Ignition coil faults
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 12 13... Ignition coil faults
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 BMW 325xi, 2005 BMW 325i, 2005 BMW 325Ci, 2004 BMW 325xi, and 2004 BMW 325i. However, it is still accessible from the selected car via links, so may be relevant.
Evaluation of ignition voltage peaks and attenuation process at idling speed.
- Beginning of attenuation processes with normal peaks upwards and downwards.
- Beginning of attenuation processes strongly shortened Ignition coil is defective!
- Absence of initial downwards attenuation.
Ignition coil is defective!
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.