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:

    Fold-out position of the wipers
    Required when changing the wiper blades or under frosty conditions, for example. 1. Switch off the ignition. 2. Under frosty conditions, ensure that the wiper blades are not frozen onto the wind ...

    Deactivating the system
    ▷ When driving, press the lever up or down twice. ▷ When stationary, do the same while depressing the brake pedal. ▷ Switch off the ignition. The displays go out, and the stor ...

    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. ...