This manual covers the Volvo Penta TAMD71A marine diesel engine, a robust inline 6-cylinder, turbocharged, and intercooled engine designed for reliable performance. With a displacement of approximately 7.1 liters and an estimated horsepower range of 175-250 HP, this engine is engineered for demanding marine applications. Its construction emphasizes durability and efficiency, making it a trusted choice for various vessel types. The engine features a direct injection fuel system with a Bosch rotary injection pump and can be configured with either raw water or keel cooling, depending on the specific operational requirements. This comprehensive service repair manual provides detailed information essential for maintaining and repairing the Volvo Penta TAMD71A. It includes step-by-step repair procedures, troubleshooting guides, and wiring diagrams, all presented with detailed illustrations, drawings, and photos. The manual is designed for both professional technicians and DIY mechanics, covering critical maintenance schedules, lubrication, filtration, coolant, and belt servicing. Its scope ensures that users can effectively diagnose issues, perform repairs with great detail, and keep their engine operating at peak performance.