Well written manual. Logical organization. Intuitive and very informed detailed diagrams, schematics. Too sad that the level of of attention to detail exhibited in these books has virtually disappeared not only from automotive books, but many other manuals and other sources which purport to instruct its readers on various subjects. The manual was written specifically for AUDI 5000 series vehicles, however, since some of the major systems, are common with other German made vehicles of similar time period, it can be extremely helpful.(Example, the BOSCH "CSI" type fuel injection system is used widely in many other German as well as other makes. This book provides an excellent explanation of that system including diagrams, schematics, etc.)Owners of the AUDI 5000 series vehicles known for their system complexities in their youth, and now for their frustrations as they become aged, are well advised to read this manual as a means of resolving problems, more cost effectively, by "accelerating" intentionally their knowledge of automotive diagnostic and repair skills.