This workshop repair manual covers the BMW D7 Marine Engine, produced between 1977 and 1987. Engineered for reliability and performance, the D7 engine is a robust unit designed for demanding marine applications. This manual provides comprehensive information to ensure the longevity and optimal operation of your vessel's propulsion system, reflecting the quality and precision associated with BMW engineering. The purpose of this manual is to serve as a definitive guide for owners and independent professionals undertaking repair and maintenance tasks. It details engine service and overhauling, transmission, chassis, body, fuel system, emission control, induction, mechanical components, control systems, steering and suspension, and brakes. Included are troubleshooting guidance for common engine fault symptoms, diagnostic techniques, detailed wiring diagrams, and essential maintenance tips to prevent issues. Full specifications and torque settings are also provided, empowering users to maintain their BMW D7 Marine Engine effectively.