The Volvo Penta D3 Series represents a line of robust marine diesel engines, including the D3-130i-B model, engineered for reliability and performance in demanding marine environments. These inline 5-cylinder engines, featuring a 2.4-liter displacement and common rail fuel injection, deliver up to 130 horsepower. Designed with a closed cooling system and meeting Tier 3 / EU RCD emission standards, they offer efficient and environmentally conscious power for various marine applications. Whether configured for stern drive, Saildrive, or Pod drive systems, the D3 series embodies Volvo Penta's commitment to quality and advanced marine propulsion technology. This Workshop Service Manual (WSM) provides comprehensive guidance for the maintenance, repair, and troubleshooting of Volvo Penta D3 Series marine diesel engines. It covers all services and repairs, from routine maintenance to in-depth diagnostics, offering detailed procedures and technical specifications. Essential information on lubrication, cooling systems, filter replacement, and the use of specialized diagnostic tools like Volvo Penta's VODIA software is included. Furthermore, the manual contains critical safety warnings and procedures to ensure safe operation and servicing. This English-language resource is designed to assist owners, mechanics, and technicians in maintaining the optimal performance and longevity of their Volvo Penta D3 engines.