This workshop service repair manual covers the Volvo TAD1642VE diesel engine. This powerful inline 6-cylinder engine features a liquid-cooled system and high-pressure common rail fuel injection, delivering up to 450 kW (603 hp) and 2640 Nm (1947 lb-ft) of torque. Designed for demanding applications and typically compliant with Tier 4 Final / Stage IV emissions standards, the TAD1642VE is engineered for robust performance and reliability. Its substantial 16.1-liter displacement ensures ample power for various industrial and heavy-duty uses. This comprehensive manual provides essential information for the service, maintenance, and troubleshooting of the Volvo TAD1642VE engine. It details procedures for critical systems including fuel, electrical, cooling, lubrication, and the turbocharger. Owners, technicians, and mechanics will find guidance on maintenance schedules, fluid capacities, filter types, and common issues. The manual serves as a definitive resource to ensure the optimal performance and longevity of the engine.