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:

    Storing
    Storing 1. Switch on the radio ready state or the ignition 2. Set the desired seat, exterior mirror and steering wheel positions. 3. Press the button. The LED in the button lights up. 4. ...

    Safety
    Neither the Insurance Institute for Highway Safety nor the National Highway Traffic Safety Administration has tested the 2007 X3. Standard safety features include four-wheel-disc antilock brakes, ...

    Increasing or decreasing vehicle speed
    Specify desired speed in the range from approx. 4 mph/6 km/h to approx. 15 mph/25 km/h using the rocker switch of the cruise control on the steering wheel. Vehicle speed can be changed by lightl ...