One of the very important features of all technical systems, and therefore road motor vehicles, is that their condition changes in the period of use. The result of this change is the occurrence of the cancellation. Thus, the operation of the car is followed by the occurrence of a failure which results in a functional disorder or a complete disruption of the system's functioning. The largest number of technical systems, including road motor vehicles, can be repaired. Appropriate interventions can prevent or delay the occurrence of the cancellation. Sometimes the failure can be completely eliminated. The interventions that take place with this aim are the maintenance of technical systems and consist of two distinctive sets: -preventative interventions aimed at keeping the technical system in good condition and - corrective interventions aimed at bringing the technical system into a proper state. Today, car maintenance includes a number of measures necessary to make the vehicle function properly, by developing performance within the prescribed limits, ie with the required performance and quality, without fail and with the prescribed environmental protection. In the field of engineering, development and production of technical systems, and therefore of cars, the aim is to achieve a favorable flow of changes in their technical condition and to provide a simple and rapid influence to change that state throughout their life cycle. In addition to the theoretical research part, the Renault Clio Storia car service has been analyzed.