This manual covers the Volvo Penta AQ105, AQ115, AQ130, AQ165, and AQ170 series inboard marine engines. These gasoline-powered engines, available in inline 4-cylinder or 6-cylinder configurations, feature sterndrive transmissions and a choice of raw water or closed cooling systems. Displacement and power output vary by specific model, with typical engine oil capacities ranging from 4 to 5 quarts or liters. These engines are known for their robust construction and reliable performance in marine applications. The comprehensive English-language Service Repair Shop Manual provides detailed information for all servicing, repair, and maintenance procedures. It includes essential technical specifications, troubleshooting guidance, and clear wiring diagrams, accompanied by step-by-step instructions and visual aids. This manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain and repair these Volvo Penta sterndrive engines, ensuring their continued optimal operation and longevity.