An experienced engineer and mechanic can determine the level of car health, not only during dismantling it but even by ear and by the move. If the car failures, the proper indicator immediately lights up on the dashboard, reporting a failure. However, not all elements of the car have their indicators, which means that it is difficult for the car owner to determine the cause of the failure. There is LECAR for that. It sees, hears and gives warning of failure and helps to cope with it.