This workshop service repair manual covers the BMW D7 Marine Engine, a robust internal combustion diesel engine designed for marine applications. Known for its engineering quality and reliability, the D7 is built to provide dependable performance in demanding maritime environments. This manual is intended to support owners and operators in understanding and maintaining their vessel's propulsion system. The purpose of this comprehensive English-language manual is to provide detailed guidance for the maintenance and repair of the BMW D7 Marine Engine. It includes extensive information on service procedures, covering everything from introductory mechanics and disassembly to assembly, cleaning, and repair. Diagnostic information, technical specifications, mechanical specifications, and details on various parts are thoroughly explained, along with guidance on products, supplies, and collision repairs, ensuring that users have the necessary knowledge to keep their engine in optimal condition.