This manual covers the Volvo TAD1642VE engine, a powerful inline 6-cylinder diesel designed for demanding applications. Featuring turbocharging and intercooling, this engine delivers robust performance with a displacement of 16.1 liters. It is engineered for reliability and efficiency, meeting relevant emission standards such as Tier 4 and EU Stage IV. The engine's specifications include a bore of 145 mm and a stroke of 170 mm, producing up to 530 kW (711 hp) and 3000 Nm of torque. Its water-cooled system and electronic engine speed governor ensure optimal operation across various conditions. This Factory Service Repair Manual provides comprehensive guidance for the maintenance and repair of the Volvo TAD1642VE engine. It details essential procedures, technical specifications, and troubleshooting information necessary for keeping the engine in optimal condition. Key areas covered include lubrication, scheduled maintenance intervals for oil and filters, and information on the high-pressure common rail fuel system. This manual is an indispensable resource for owners, technicians, and mechanics seeking to ensure the longevity and performance of their Volvo engine.