This comprehensive service repair workshop manual covers all generations of Mazda vehicles equipped with the B6-DOHC and BP-DOHC engines. These engines, including the 1597cc B6-DOHC and 1839cc BP-DOHC inline-4 configurations, feature DOHC valvetrain and typically electronic fuel injection. This manual provides in-depth knowledge for maintaining and repairing these reliable vehicles, offering detailed instructions and technical specifications essential for preserving their performance and longevity. The purpose of this manual is to serve as a complete official factory service resource for do-it-yourselfers and experienced mechanics alike. It encompasses a wide range of essential maintenance tasks, including engine identification, general precautions, disassembly and assembly procedures, maintenance checklists, troubleshooting guides, and detailed information on the cooling system, exhaust system, fuel filter, and electrical system components such as the alternator, regulator, and wiring diagrams. With hundreds of photos and illustrations, this manual offers step-by-step instructions to facilitate cost-effective and convenient repairs.