Abstract
The most important question of the contemporary machine building industry is the production's quality and between their parameters, the reliability is situated on the first places. This paper develops adequate theoretical research methods with a view to emphasize the influence of technological factors on the automotives reliability. At the same time, these methods have been experimentally checked and thus materialized the possibilities through which the application of presented methods can separate the influence of manufacturing quality from the rest of the influence factors concerning the automotives reliability.