This Owner's Manual describes all models and all standard, country-specific and optional equipment that is offered in the model series.
Therefore, in this Owner's Manual, we also describe and illustrate features that are not available in your vehicle, e.g., because of the selected optional features or the country-specific version.
This also applies to safety-related functions and systems.
The respectively applicable country provisions must be observed when using the respective features and systems.
For any options and equipment not described in this Owner's Handbook, refer to the Supplementary Owner's Handbooks.
On right-hand drive vehicles, some controls are arranged differently from what is shown in the illustrations.
BMW X3 Owners Manual > Lane departure warning: System limits
The system may not be fully functional in the
following situations:
In heavy fog, rain or snowfall.
In the event of missing, worn, poorly visible,
merging, diverging, or multiple lane
markings such as in construction areas.
When lane markings are covered in snow,
ice, dirt or water.
...