See also:

Automatic update
About twice a year, Sirius performs an update of the channel names and positions. The update takes place automatically and may take several minutes. ...

Self-leveling headlights
The self-leveling headlights feature adapts the light distribution to the contours of the road. The light distribution is lowered on hilltops to avoid blinding oncoming traffic and tilted in depr ...

Maintenance and repairs
Advanced technology, e.g., the use of modern materials and high-performance electronics, requires suitable maintenance and repair methods. Therefore, have this work performed only by a BMW cent ...