This workshop service repair manual covers the Volvo Penta D3-190i-B marine engine, part of the D3 Series. This in-line 4-cylinder diesel engine produces 190 horsepower and features a common rail fuel injection system, liquid cooling, and an emission control system. With a displacement of 2.4 liters, it is engineered for reliable marine performance. This comprehensive English-language manual provides detailed information essential for maintaining and repairing your Volvo Penta D3-190i-B. It includes step-by-step instructions, detailed illustrations, wiring schematics, and troubleshooting guides for various systems, including mechanical, electrical, fuel, and emission control. This resource is designed to assist owners, mechanics, and technicians in ensuring the optimal performance and longevity of the marine engine.