12 13 Notes on Checking Ignition System
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 BMW 335xi, 2010 BMW 335i, 2009 BMW 335xi, 2009 BMW 335i, and 2008 BMW 335xi. 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