This workshop service repair manual covers the Volvo TAD1631GE, a powerful 16.1-liter inline 6-cylinder diesel engine. Engineered for robust performance, this engine typically delivers approximately 405 kW (543 hp) at 1800 rpm and features a Unit Injector System (UIS) with Electronic Diesel Control (EDC) for efficient operation. Its water-cooled design and turbocharging with intercooling ensure reliability in demanding applications, though specific production years and intended usages are not detailed here. This comprehensive English-language manual provides essential information for the maintenance and repair of the Volvo TAD1631GE engine. It details critical procedures, technical specifications, and troubleshooting guidance necessary for optimal performance and longevity. Owners, technicians, and mechanics will find the information on oil and coolant capacities, filter types, and service intervals invaluable for proper upkeep.