The unit VAS 5051B represents a vehicle diagnostic and information system, which allows to control via interface electronic car systems, verifying controller parameters, update of programming, set up procedure and further functions. The integrated measuring techniques-functions of the VAS 5051B support mechanical workers in case of complex diagnostic task and repair work. The design of the unit has taken into consideration and been adapted to the rough environmental conditions of automotive work shops. Main advantages of the VAS 5051B are the easy handling, comprehensive shock absorption and optimization of the different readability conditions.