The Mazda Protege 2003 Factory Service Repair Manual offers comprehensive repair and maintenance information for your vehicle. It contains detailed instructions, diagrams, and specifications covering all major systems, including:

* **General Information:** Essential overview of the vehicle, including safety precautions and basic maintenance procedures.
* **Engine:** Covers everything from engine specifications and operation to detailed repair procedures for components like the cylinder head, crankshaft, and valves.
* **Lubrication System:** Comprehensive guide on oil changes, filter replacements, and troubleshooting common lubrication system issues.
* **Cooling System:** Detailed information on coolant selection, system operation, and repair procedures for components like the radiator, thermostat, and water pump.
* **Fuel and Emission Control Systems:** Covers fuel injection systems, exhaust emission controls, and troubleshooting procedures for issues like engine misfires and poor fuel economy.
* **Engine Electrical System:** Provides detailed diagrams and explanations of engine electrical components and wiring, including troubleshooting procedures for common electrical problems.
* **Clutch:** Covers clutch operation, adjustment, and repair procedures for both manual and automatic transmissions.
* **Manual Transaxle:** Provides detailed information on the operation, maintenance, and repair of manual transmissions.
* **Automatic Transaxle:** Comprehensive guide to the operation, maintenance, and repair of automatic transmissions.
* **Front and Rear Axles:** Covers the operation, maintenance, and repair of the front and rear axles, including differential and axle shaft repair.
* **Steering System:** Comprehensive information on steering system operation, maintenance, and repair, including power steering systems.
* **Braking System:** Detailed instructions on brake system operation, maintenance, and repair, covering components like calipers, rotors, and brake lines.
* **Suspension:** Covers suspension system operation, maintenance, and repair, including shock absorbers, springs, and control arms.
* **Body:** Provides details on bodywork, including repair procedures for body panels, doors, and windows.
* **Body Electrical System:** Covers the operation and repair of electrical components like lights, switches, and wiring.
* **Heater and Air Conditioner Systems:** Comprehensive guide to the operation, maintenance, and repair of the vehicle's heating and air conditioning system.
* **Technical Data:** Includes important technical specifications, torque values, and other data essential for successful repairs.
* **Special Tools:** Lists specialized tools required for specific repair procedures.

The 2003 Mazda Protege, a compact car produced by the Japanese automaker Mazda, was the second generation of the Protege model line, following the original model introduced in 1989. This generation, spanning from 2001 to 2003, underwent a significant redesign, featuring a more rounded and aerodynamic body style. The Protege was available in both sedan and hatchback body configurations, providing versatility for different lifestyles. It was powered by a 1.6-liter or 1.8-liter four-cylinder engine, offering a balance of performance and fuel efficiency. The Protege was praised for its comfortable ride, spacious interior, and user-friendly features. It was positioned as a competitive option in the compact car segment, targeting buyers seeking a reliable and affordable vehicle with a focus on practicality and value.

The 2003 Mazda Protege Factory Service Repair Manual is an essential resource for mechanics, technicians, and DIY enthusiasts working on this vehicle. This comprehensive guide contains detailed information and instructions covering every aspect of the Protege's operation and maintenance. From engine specifications and repair procedures to electrical system diagrams and troubleshooting tips, the manual provides a wealth of technical knowledge. It includes step-by-step instructions with clear illustrations and diagrams, enabling users to perform a wide range of tasks, including routine maintenance, engine repairs, bodywork, and electrical system checks. With its in-depth coverage and detailed information, the Factory Service Repair Manual is a valuable tool for ensuring the efficient and safe repair and maintenance of the 2003 Mazda Protege.