This document pertains to the Volvo Penta MD11C, MD11D, MD17C, and MD17D diesel engines. These engines are recognized for their robust construction and reliable performance, designed to meet the demanding requirements of various marine applications. Their engineering emphasizes durability and efficiency, making them a trusted choice for boat owners and operators seeking dependable power. This comprehensive Factory Service Repair Manual provides essential information for the maintenance, repair, and troubleshooting of the specified Volvo Penta engines. It covers a wide array of topics, including detailed procedures for engine assembly, dismantling, and overhauling. Furthermore, the manual includes in-depth guidance on component servicing, system diagnostics for cooling and electrical systems, and specific maintenance tasks such as valve clearance adjustments and injector system checks. With hundreds of pages of detailed instructions, diagrams, and technical data, this manual serves as an indispensable resource for ensuring the optimal performance and longevity of your engine.