The Mazda 323 Protege, produced between 1990 and 1991, represents a significant offering in the compact car segment, known for its driving dynamics and quality engineering, hallmarks of Mazda's automotive philosophy. This generation, identified by the BG chassis code, was part of a broader model range spanning from 1989 to 1994. Available with either a 1.6L SOHC B6 engine or a more powerful 1.8L DOHC BP-ZE engine, the Protege offered a balance of fuel efficiency and performance, with the 1.8L variant producing approximately 128-130 horsepower. Its compact dimensions, including a length of 169.7 inches and a wheelbase of 101.4 inches, contribute to its agile handling. The vehicle competed effectively in its class, even earning a spot on Car and Driver's 10Best list for 1990, underscoring its value and overall competence. This comprehensive workshop service repair manual, written in English, provides factory-level detail for owners and technicians alike. It covers all essential aspects of vehicle maintenance, diagnosis, and repair, including engine mechanical and electrical systems, fuel, cooling, exhaust, transmission (both manual and automatic), drivetrain, suspension, steering, brakes, and the complete electrical and HVAC systems. The manual offers detailed procedures for maintenance, troubleshooting, component replacement, and overhauls, supported by hundreds of illustrations and diagrams, torque specifications, and wiring schematics. Its scope ensures that users can effectively maintain and repair their Mazda 323 Protege, making it an invaluable resource for keeping the vehicle in optimal working condition.