Monitoring function
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW M5, 2009 BMW M6, 2009 BMW M5, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.
If the monitoring conditions are compliant the vibrations of the HFM-sensor signal are integrated and averaged over several time windows (at present 3).
If this value is higher than a certain threshold the PCV system is operating properly.
If the value is lower than the threshold the PCV system is not operating properly.