The 2003 Mazda 6, chassis code GG/GY, is a mid-size sedan noted for its European-inspired styling and a driving experience that embodies Mazda's "Zoom-Zoom" philosophy, emphasizing dynamic handling and responsiveness. Available also as a wagon, this model was designed to be a competitive offering in its segment, featuring multi-link front and independent rear suspension systems for superior road manners. Engine options included the 2.0L LF-DE and the more powerful 2.3L FS-DE, both inline 4-cylinder units, paired with either a 5-speed manual or a 4-speed automatic transmission. Safety was a consideration, with standard Anti-lock Braking System (ABS) and Electronic Brakeforce Distribution (EBD), alongside front airbags and optional side airbags, contributing to good safety ratings. This comprehensive Factory Service Manual (FSM) provides detailed information for the maintenance, diagnosis, and repair of the 2003 Mazda 6. It covers all major systems, including the engine, transmission, brakes, suspension, electrical system, and body and chassis. The manual includes routine maintenance procedures, step-by-step repair instructions, diagnostic flowcharts, troubleshooting guides, and essential technical specifications, such as torque values and fluid requirements. Designed for professional technicians and advanced DIYers, this over 1000-page manual in English offers in-depth coverage to ensure the optimal performance and longevity of your vehicle. 🏷️ Basic Information Identification Make: Mazda Model: 6 Year: 2003 Codes Chassis Code: GG/GY 👋 Introduction Market Position Segment: Mid-size sedan (also available as wagon). Description: The 2003 Mazda 6 (Codename GG/GY) was a significant model for Mazda, aiming to compete with established players like the Honda Accord and Toyota Camry with a focus on sporty handling and distinctive styling. Competitive Analysis Competitors: Honda Accord, Toyota Camry, Nissan Altima, Ford Fusion, Chevrolet Malibu. Key Features Design Philosophy: Mazda's 'Zoom-Zoom' philosophy emphasizing dynamic driving feel and responsive handling. Styling: Often praised for its European-inspired styling and aerodynamic profile. Handling: Multi-link front suspension and independent rear suspension contributed to excellent road manners. 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Brakes: Yes Suspension: Yes Electrical System: Yes Body And Chassis: Yes HVAC: Yes Diagnostics: Yes Troubleshooting: Yes Wiring Diagrams: Yes Maintenance Procedures: Yes Repair Procedures: Yes Specifications: Yes Page Count Estimated Pages: Over 1000 Manual Type Type: Factory Service Manual (FSM) Target Audience: Professional Technicians and Advanced DIYers Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Fuel System, Ignition System, Emission Control, Cooling System, Lubrication System, Engine Control Module (ECM) Diagnosis. Drivetrain: Manual Transmission (MT) and Automatic Transmission (AT) repair, differential, driveshafts, CV joints. Chassis: Front and Rear Suspension (including specific component diagnostics and replacement), Steering System (including power steering), Brake System (including ABS and EBD), Wheel and Tire specifications. Electrical: Complete electrical system schematics, lighting systems, power windows, locks, mirrors, instrument cluster, audio system, body control module (BCM), diagnostic trouble codes (DTCs). Body: Body panel removal and installation, door mechanisms, interior trim, glass, seals, collision repair information. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug replacement, coolant flushes, belt inspections and replacement, brake pad and rotor replacement. Diagnostic Procedures: Step-by-step diagnostic flowcharts for common and complex issues, OBD-II code interpretations and troubleshooting, component testing procedures. Repair And Overhaul: Detailed instructions for engine component removal and installation (e.g., cylinder head, pistons), transmission overhaul, suspension component replacement, brake caliper rebuild. Special Tools: Identification and usage instructions for specialized Mazda tools required for specific repairs. Torque Specifications: Precise torque values for critical fasteners throughout the vehicle. Technical Depth Depth Level: Comprehensive (from basic fluid checks to complete engine/transmission rebuilds and advanced electrical diagnostics). Detail Level: Highly detailed, often with exploded views, schematics, and step-by-step instructions with photographic references. 📊 Manual Specifications File Format Format: PDF Searchability: Text-searchable (allows for quick finding of specific topics). Print Quality Quality: High-resolution scans suitable for printing. Binding Type Binding Information: Digital download (PDF), no physical binding. Paper Type Paper Information: Not applicable (digital format). ⚙️ Engine Specifications Primary Engine Engine Code: LF-DE (2.0L), FS-DE (2.3L) Engine Type: Inline 4-cylinder, DOHC, 16-valve, naturally aspirated. Displacement 2.0L: 1991 cc (121.5 cu. in.) Displacement 2.3L: 2261 cc (137.9 cu. in.) Performance Horsepower 2.0L: Approx. 122 hp @ 6000 rpm Torque 2.0L: Approx. 138 lb-ft @ 4300 rpm Horsepower 2.3L: Approx. 148 hp @ 6000 rpm Torque 2.3L: Approx. 150 lb-ft @ 4000 rpm Fuel System Injection: Electronic Fuel Injection (EFI) with Sequential Port Injection. Fuel Type: Unleaded gasoline (87 octane or higher recommended). Engine Management ECU Type: Mazda proprietary Engine Control Unit (ECU). 🔧 Transmission Standard Transmission Type: 5-speed manual transmission (FS5A-EL for some engines). Optional Transmission Type: 4-speed automatic transmission with lock-up torque converter. Features Automatic Modes: Includes 'Sport' mode for more aggressive shifting. Fluid Specifications Automatic Fluid: Dexron III or equivalent (check specific manual for exact spec). Manual Fluid: GL-4 gear oil (viscosity may vary by climate, typically 75W-90). 📐 Dimensions Exterior Length: Approximately 186.8 inches (4745 mm). Width:...