This service manual covers the Lombardini CHD-series engines, including the LDW 1503, LDW 1603, LDW 2004, LDW 2204, LDW 2004/T, and LDW 2204/T models from 2009. These diesel engines are engineered for reliability and performance across diverse applications, such as marine and industrial use. The manual details various engine configurations, including 3-cylinder and 4-cylinder options, as well as turbocharged variants. This comprehensive English-language service manual provides essential information for maintaining and repairing your Lombardini engine. It includes detailed technical specifications, disassembly and reassembly procedures, lubrication and cooling system service, fuel system maintenance, electrical system troubleshooting, and settings adjustments. Furthermore, the manual covers turbocharger service, engine storage, torque specifications, special tools, and service interval recommendations, ensuring optimal engine longevity and performance.