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:

    Important parts of the engine compartment
    1.  Expansion tank for coolant, 2.  Washer fluid filler neck for headlamp cleaning system and window washer system, 3.  Jump-starting connection, 4.  Fluid filler neck for e ...

    Initiating an Emergency Request
    1. Press the cover briefly to open it. 2. Press the SOS button until the LED in the button lights up. ▷ The LED lights up: an Emergency Request was initiated. If the situation allows, w ...

    Priority options
    The driver has priority The source selected via iDrive in the front is output on the vehicle loudspeakers and can be selected but not operated from the rear. Other audio or video sources ...