This workshop service repair manual covers the Volvo AQ151, a 2.5-liter inline 4-cylinder naturally aspirated engine. While specific production years are not detailed, the AQ151 is recognized for its robust engineering and reliability, making it a dependable choice for marine applications. This manual provides comprehensive information for maintaining and servicing this engine.

The purpose of this manual is to serve as a definitive guide for owners, mechanics, and technicians. It details essential maintenance procedures, troubleshooting techniques, and technical specifications necessary for the upkeep of the Volvo AQ151 engine. With hundreds of pages of expert information, this manual ensures that the engine remains in optimal condition, promoting longevity and performance.