This workshop service repair manual covers the Volvo AQ250 5.7L (350) V8 engine, applicable to all models, engines, trim, and transmission types. Engineered for reliability and performance, the 5.7L V8 engine provides robust power for its intended applications. This manual details comprehensive maintenance procedures, extensive troubleshooting information, and covers key components including the fuel system, ignition system, electrical system, and cooling system, alongside stern drive, tilt and trim systems, and steering. The purpose of this manual is to provide detailed, professional-quality guidance for maintaining and repairing your Volvo AQ250 5.7L (350) V8. It includes step-by-step repair procedures, disassembly and assembly instructions, cleaning and reinstalling guidelines, and tuning information. With hundreds of diagrams, detailed illustrations, drawings, photos, and included wiring and troubleshooting diagrams, this manual is an essential resource for owners, mechanics, and technicians. It also covers safety information and includes an appendix, ensuring all aspects of the vehicle are addressed for optimal performance and longevity.