Fault description
WARNING: This page does not describe the selected car, but rather 59 other vehicles, including the 2018 BMW X4, 2018 BMW 320i xDrive, 2018 BMW 320i, 2017 BMW X4, and 2017 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The diagnosis monitors the dynamic properties of the oxygen sensor after catalytic converter.
Malfunction monitoring conditions
This fault code is detected whenever the oxygen sensor after catalytic converter responds too slowly to changes in the oxygen content of the exhaust gas.