The 2003 Kia Sephia, part of the Second Generation (GD) with chassis code FB, represents an affordable and reliable entry-level compact car. This vehicle, available in both 4-door sedan and 5-door hatchback body styles, typically features an inline 4-cylinder engine producing approximately 90-120 horsepower and 90-115 lb-ft of torque, paired with either a 5-speed manual or an electronically controlled 4-speed automatic transaxle. Standard safety equipment includes driver and passenger frontal airbags, with optional Anti-lock Braking System (ABS) available on certain trims. The Sephia was designed to offer practical transportation, with a focus on value and essential features. This comprehensive workshop service repair manual in English provides detailed information for the 2003 Kia Sephia. It covers essential areas such as engine mechanical and electrical systems, emission control, fuel system, clutch, transaxles (manual and automatic), driveshaft, suspension, steering, brake system, restraint systems, body interior and exterior, body electrical, and HVAC. The manual includes step-by-step repair and component replacement procedures, troubleshooting guides, diagnostic information, and wiring schematics, making it an invaluable resource for owners, independent auto service professionals, and authorized dealer technicians.