Tyre valves undergo constant high levels of pressure. It is crucial to change the car valve when it is defective. Not enough pressure on tyres can lead to a dangerous extension of the braking distance by up to 70% on wet grounds and thus represents an enormous safety hazard. Loss of control or burst tyres are also possible consequences of the loss of pressure. In addition to the safety aspect, there is also an monetary aspect that underlines the importance to change the valve of car tyres regularly. Flat tyres lead to increased wear on the car and increased fuel consumption. Regular checking of the car tyres, changing the tyre valves and adjusting the air pressure is therefore of utmost importance.