This manual provides comprehensive service and repair information for the BMW R51/2, R51/3, R67/2, R67/3, and R68 motorcycles, spanning their production periods from the late 1940s through the mid-1950s. These classic BMW boxer-twin models are celebrated for their engineering quality, durability, and the distinct longitudinal mounting of their engines, which enhances accessibility for maintenance. The R68, in particular, offered a sportier performance profile compared to the more touring-focused R67 variants. This documentation is essential for owners and enthusiasts dedicated to the restoration, maintenance, and performance tuning of these iconic German machines, offering a singular source of detailed technical data.

The scope of this workshop manual is extensive, covering all facets of vehicle maintenance and repair. It includes detailed tear-down and rebuild procedures, high-resolution pictures, part diagrams for component identification, precise torque specifications, routine maintenance schedules, and thorough troubleshooting guidance for common issues. The manual delves into the engine (including complete disassembly and assembly), transmission, drivetrain, chassis, suspension, brakes, electrical system, and fuel system. This German-language resource is designed to assist both amateur mechanics and professional technicians in accurately maintaining and repairing these specific BMW motorcycle models, ensuring their longevity and optimal performance.