12 13 Notes on checking ignition system
WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
- Fault in fuel injection system
- Spark plug faults
- Ignition coil faults
- Further fault patterns with evaluation
- Additional fault notes for troubleshooting
Troubleshooting
Oscillograms
- Normal oscillators
- Oscillograms of ignition coils from different manufacturers
Check
- Secondary signal for stationary ignition distribution