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:

    In the center armrest in the rear
    Storage is possible in a vertical or horizontal position in the center armrest. ...

    BMW 320i, BMW 318d and BMW 316d
    In spring 2012, BMW will launch three further engines for the new sports sedan series, all of them offering plentiful power and outstanding efficiency. Following the impressive BMW 328i, the top f ...

    Features
    The 535i xDrive starts at $55,800 and comes with a fair amount of standard features, like a panoramic moonroof, xenon headlights and rain-sensing windshield wipers. As with most BMWs, though, it's ...