This manual covers the Volvo AQ250, a marine engine equipped with a 5.7L (350) V8 engine. Renowned for Volvo's commitment to engineering quality and reliability, this engine is designed for robust performance. Its V8 configuration and 5.7-liter displacement provide ample power for various marine applications, ensuring a dependable and capable boating experience. This comprehensive workshop service repair manual is designed for both do-it-yourself enthusiasts and experienced mechanics. It provides detailed, step-by-step instructions supported by hundreds of photos and illustrations to guide you through maintenance, repair, and troubleshooting. The manual covers essential systems including fuel, ignition, cooling, electrical, stern drive, tilt trim, and steering, along with advanced troubleshooting and wiring diagrams, ensuring you can effectively maintain and repair your Volvo AQ250.