This manual provides comprehensive service and repair information for the Mazda B6-DOHC engine, a DOHC (Dual Overhead Camshaft) engine. While specific production years are not detailed, this factory service repair manual covers multiple models utilizing this engine family. The B6-DOHC engine is known for its engineering quality and reliability, and this manual is designed to assist owners and technicians in maintaining and repairing it effectively. The scope of this manual is extensive, encompassing detailed step-by-step instructions, illustrations, diagrams, and photos for all repair procedures. It includes essential sections on general precautions, maintenance checklists, troubleshooting guides, and specific system services such as cooling and fuel systems. Furthermore, the manual provides detailed wiring diagrams, servicing specifications, tightening torques, and information on components like the alternator and fuel filter, as well as engine body service and disassembly. It also lists special tools required for repairs, ensuring a thorough approach to vehicle maintenance.