This workshop service repair manual provides comprehensive information for the Volvo AQ130 marine inboard engine. Designed for a range of production years, this 4-cylinder, 2.0L gasoline engine delivers approximately 121 horsepower and features a water-cooled system. The AQ130 is recognized for its robust engineering and reliability, making it a dependable choice for marine applications. This manual serves as an essential resource for understanding and maintaining this specific Volvo engine. The purpose of this English-language manual is to guide owners, mechanics, and technicians through all aspects of the Volvo AQ130. It covers detailed procedures for engine rebuilding, electrical system diagnostics including wiring diagrams, and troubleshooting common issues. Maintenance schedules, fluid capacities, and parts information are also included. With hundreds of pages of complete official factory service data, this manual ensures proper upkeep and repair, maximizing the performance and longevity of your marine propulsion system.