This service repair manual covers the Volvo Penta MD11C/D and MD17C/D marine diesel engines. These engines are designed for reliable marine propulsion, with the MD11C/D featuring a 2-cylinder, 4-stroke configuration and 1.1 L displacement, while the MD17C/D offers a 3-cylinder, 4-stroke setup with 1.7 L displacement. Volvo Penta engines are known for their robust engineering and dependable performance in demanding marine environments. This comprehensive manual provides essential information for the maintenance, repair, and troubleshooting of your Volvo Penta marine diesel engine. It details critical procedures, technical specifications, and safety guidelines necessary for optimal engine performance and longevity. Owners, mechanics, and technicians will find this resource invaluable for ensuring the continued reliability and efficiency of their MD11C/D or MD17C/D engines.