This service repair workshop manual covers Volvo Penta AQ105, AQ115, AQ130, AQ165, and AQ170 marine engines. These gasoline-powered engines, featuring indirect cooling systems and available in various displacements from 2.0 L to 3.0 L with corresponding horsepower ratings, are designed for inboard/outboard sterndrive applications. Their robust engineering and reliability are hallmarks of Volvo Penta's commitment to marine propulsion, making them suitable for a wide range of boating activities. This comprehensive manual provides detailed step-by-step instructions, hundreds of photos, diagrams, and exploded views to guide you through all repairs, servicing, and troubleshooting procedures. It is an essential resource for owners, mechanics, and technicians, ensuring the proper maintenance and longevity of your Volvo Penta marine engine. The manual is designed for easy navigation and printing, offering lifetime use across multiple devices.