The Mazda RX3, produced from 1971 to 1978, stands as a distinctive entry in the compact car segment, renowned for its innovative Wankel rotary engine. Available in 2-door coupe, 4-door sedan, and 5-door wagon body styles, and identified by chassis codes AP, AG, and AH respectively, the RX3 offered a sporty driving experience and stylish Japanese design. Its unique selling proposition was the compact and high-revving 12A rotary engine, which provided smooth operation and a performance-oriented character, setting it apart from competitors like the Datsun 510 and early Toyota Corollas. This vehicle appealed to enthusiasts seeking a unique engineering approach and dynamic handling.

This comprehensive service and repair manual provides in-depth information for the Mazda RX3, covering all major systems. It details maintenance procedures, including fluid changes, filter replacements, and ignition timing, alongside repair instructions for the rotary engine, transmissions, suspension, brakes, and electrical systems. Troubleshooting guides, diagnostic procedures, and specific adjustment techniques are also included to assist owners and technicians. The manual features factory-level technical specifications, torque values, wiring diagrams, and information on special tools required, ensuring accurate maintenance and repair for the first generation RX3 variants.