This manual covers the Kia Mentor, a model produced in 2003. Built on the DB platform and rebadged from the Mazda 323, the Kia Mentor is designed for general transportation and offers a solid foundation for reliable daily use. This comprehensive resource is intended to assist owners and technicians in understanding and maintaining this vehicle. This workshop repair service manual provides extensive coverage for all Kia Mentor 2003 models, engines, trims, and transmission types. It details engine and transmission service, brake systems, electrical systems including wiring diagrams, suspension, steering, cooling, fuel injection, emission systems, HVAC, chassis, body, restraint systems, and interior components. The manual includes general maintenance, periodic lubrication, troubleshooting, disassembly and assembly procedures, cleaning and reinstallation, diagnostic steps, and detailed repair instructions with numbered substeps and illustrations, enabling effective upkeep and repair.