Issues related to the technological design of car repair enterprises during their reconstruction or technical re-equipment are considered: methodology for designing production systems such as car depots ; development of the structure of the enterprise and its divisions ; Development of technological processes ; Selection of equipment; calculations of the main technological and techno-economic parameters of production sites ; formation on the basis of the technological part of the requirements for all other parts of the enterprise project (construction, energy, sanitary-technical, economic, labor protection, etc.) ). In addition, the theoretical foundations of computer-aided design of technological processes of car repair and technological preparation of production of enterprises of wagon and passenger farms using new information technologies and computers . are presented.