12 13 Notes on checking ignition system
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. 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
Oscillograms
- -> Normal oscillogram
- -> Oscillograms of ignition coils from different manufacturers
Check
- -> Secondary signal for stationary ignition distribution