The concept

The system does not measure the actual inflation pressure in the tires.

It detects a pressure loss in a tire by comparing the rotational speeds of the individual wheels while moving.

In the event of a pressure loss, the diameter and therefore the rotational speed of the corresponding wheel change. This is detected and reported as a flat tire.

    See also:

    BMW Assist or ConnectedDrive
    ...

    Transmission positions
    D Drive, automatic position Position for normal vehicle operation. All forward gears are available. R is Reverse Select only when the vehicle is stationary. N is Neutral Use in automatic car wa ...

    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. ...