General notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The hot film air mass meter has a self-diagnosis facility that detects internal sensor faults. Furthermore, the two digital output signals - air mass and temperature signal - are examined electrically and with regard to faults in the value range. If the hot film air mass meter detects an internal fault, the air mass signal is set for a sustained period to Low and the temperature signal is set for a sustained period to High.
We can assume no liability for printing errors or inaccuracies in this information and reserve the right to introduce technical modifications at any time.