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:

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    General information
    BMW Assist provides you with certain services, e.g., transmission of the position data of your vehicle to the BMW Assist Response Center if an Emergency Request has been initiated. Many BMW Ass ...

    Resetting the system
    Reset the system after each correction of the tire inflation pressure and after every tire or wheel change. 1. "Vehicle Info" 2. "Vehicle status" 3. "Reset" 4. S ...