12 13 Notes On Checking Ignition System

2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 12 13 Notes On Checking Ignition System
TROUBLESHOOTING TABLE

Troubleshooting -> Fault in fuel injection system 
- -> Spark plug faults 
- -> Ignition coil faults 
- -> Further fault patterns with evaluation 
- -> Additional fault notes for troubleshooting 
Oscillograms -> Normal oscillogram 
- -> Oscillograms of ignition coils from different manufacturers 
Check -> Secondary signal for stationary ignition distribution 
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.