See also:

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...

Signal tones
When approaching an object, an intermittent tone is sounded that indicates the position of the object. For example, if an object is detected to the left rear of the vehicle, a signal tone sounds ...

2010 BMW X5 Review
Aside from a low clatter at startup, there are few initial signs that BMW's diesel-powered X5 is a different sort of beast. Drive it you must, though, because diesel power is addictive. As is the ca ...