This user manual is designed for your convenience and compiled on the basis of the original B.U.D.S. Help file which is built into the program. Unfortunately, for several years, the B.U.D.S. developers did not make any changes to Help file. It has long been changed the composition of the diagnostic kit, which is required for diagnosis, but B.U.D.S. Help file was prepared for use it with the previously used equipment (VCK®) and outdated B.U.D.S. program (2-nd version). We have slightly modified description to match the modern equipment for diagnostics, which is used now in every authorized workshop. Maybe we have missed something and not have corrected. Therefore, the description of some operations maybe correspond to the outdated MPI® (MPI-1) and 2-nd version of the B.U.D.S. program.