This manual covers MAN D 2866 LE Series and D 2876 LE Series marine diesel engines. These inline diesel engines are engineered for reliability and performance in demanding marine applications, featuring robust construction and advanced direct injection technology. Their design emphasizes durability and efficiency, making them a trusted choice for various maritime vessels. This comprehensive Factory Service/Repair/Workshop Manual, written in English, provides detailed information for the maintenance and repair of your MAN marine diesel engines. It includes essential procedures for routine maintenance, such as changing fuel and oil filters, coolant service, and valve adjustments, as well as in-depth repair instructions for major components like the fuel injection system, cooling system, turbocharger, and engine assembly. This manual is an indispensable resource for owners, mechanics, and technicians to ensure optimal performance and longevity of the D2866 and D2876 engine families.