This service manual covers New Holland CNH U.K. ENGINES, specifically models F4BE0454B, F4BE0484D, F4BE0484E, F4BE0684B, and F4BE0684M. These engines are integral to various New Holland and Kobelco machinery, including excavators like the E145, E175, E195, E215, and E245, as well as MH series equipment such as the MH2.6, MH3.6, MH4.6, and MH Plus C. Designed for robust performance and reliability, these engines are engineered to meet the demanding requirements of construction and industrial applications. This comprehensive manual provides detailed service and repair procedures, including assembly and disassembly instructions, wiring diagrams, and diagnostic information. It is intended to guide owners, mechanics, and technicians through all aspects of maintenance, troubleshooting, and repair for the specified engine models. The manual's step-by-step operations, illustrated with real photo examples and schemes, ensure that users can effectively maintain and restore their machinery, promoting longevity and optimal operational efficiency.