BMW X3 Owners Manual: Maintenance
The battery is maintenance-free.
The added amount of acid is sufficient for the service life of the battery.
Further information about the battery can be obtained from your service center.
Battery replacement
Use approved vehicle batteries only
Only use vehicle batteries that have been approved for your vehicle by the manufacturer; otherwise, the vehicle could be damaged and systems or functions may not be fully available.
After a battery replacement, have the battery registered on the vehicle by the service center to ensure that all comfort features are fully available and that any Check Control messages of these comfort features are no longer displayed.
Vehicle battery
...
Charging the battery
General information
Make sure that the battery is always sufficiently
charged to guarantee that the battery
remains usable for its full service lif ...
Other materials:
BMW X3 Owners Manual > Side View: The concept
Side View provides an early look at cross traffic
at blind driveways and intersections. Road
users concealed by obstacles to the left and
right of the vehicle can only be detected relatively
late from the driver's seat. To improve
the viewing, each camera, front and rear on the
vehicle, de ...