This manual provides comprehensive service and repair information for BMW R 80 and R 100 motorcycles, primarily covering models produced between 1999 and 2008, with indications of 1998 coverage. These iconic boxer-twin motorcycles are celebrated for their robust engineering, shaft drive, and enduring reliability, making them popular for touring, adventure touring, and as classic road bikes. Known for their distinctive design philosophy emphasizing durability and rider engagement, the R 80 and R 100 series represent a significant evolution of BMW's legendary boxer engine platform, offering a blend of performance and comfort.

The scope of this service repair manual is extensive, detailing everything from routine maintenance procedures such as oil changes and valve adjustments to in-depth repair and overhaul instructions for critical systems. Covered areas include the engine, fuel system, ignition, transmission, brakes, electrical systems, suspension, steering, frame, and bodywork. It also provides essential technical specifications, troubleshooting guides for common issues, and diagnostic procedures, equipping owners, mechanics, and technicians with the necessary knowledge to maintain and repair these vehicles effectively.