12 13 Notes on checking ignition system
WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, 2001 BMW 525i, and 2000 BMW 528i. However, it is still accessible from the selected car via links, so may be relevant.
Troubleshooting
- Fault in fuel injection system.
- Spark plug faults.
- Ignition coil faults.
- Further fault patterns with evaluation.
- Additional fault notes for troubleshooting.
- Normal oscillogram. See 12 13... Normal oscillogram (M, S, W engines only) .
- Oscillograms of ignition coils from different manufacturers
See 12 13 009 Checking rod-type ignition coils (M54, M56, N40, N42, N45, N46, N52, N62, N73) .
- Secondary signal for stationary ignition distribution. See 12 13... Checking secondary signal for stationary ignition distribution .