Rough road detection

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 rough road detection identifies rough track driving on poor road surfaces (driving over stones, rubble/debris or potholes) based on the information on acceleration of the wheels obtained. If a rough section of road is detected, a fault is stored and the misfire detection is briefly suppressed. This is necessary as the vibrations in the drive train caused by poor road surfaces can lead to erroneous misfire detection. Conversely, it is also possible that the rough road detection comes into effect too late (once misfiring has already been erroneously detected). in which case incorrectly diagnosed misfiring is identified with the assistance of the rough road detection.

We can assume no liability for printing errors or inaccuracies in this information and reserve the right to introduce technical modifications at any time.