The Mazda 6, first generation (GG/GY), produced from 2002 to 2007, is a mid-size sedan and wagon celebrated for its engaging driving experience and sporty handling, embodying Mazda's 'Zoom-Zoom' philosophy. This model, available as a 4-door sedan, 5-door hatchback, or 5-door sport wagon, offered a 2.3L DOHC inline-4 engine producing 160 horsepower and was equipped with either a 5-speed manual or a 5-speed automatic transmission. Recognized for its driver-focused design and a strong value proposition, the Mazda 6 earned a spot on Car and Driver's 10Best list in 2003. Safety was a key consideration, with the 2003 model achieving five stars in NHTSA frontal crash tests and a 'Good' rating in IIHS front offset crash tests, often featuring standard ABS and available traction and stability control systems. This comprehensive workshop and service manual provides detailed coverage for the Mazda 6, encompassing all aspects of maintenance, diagnosis, and repair. It covers essential systems including the powertrain, drivetrain, chassis, electrical components, and body structure. Within its extensive pages, you will find step-by-step procedures for scheduled maintenance, such as oil changes and fluid replacements, along with in-depth troubleshooting guides, diagnostic trouble codes, and wiring diagrams. The manual also details repair and rebuild procedures for major components, installation and replacement guidance, and critical technical specifications. This resource is designed to assist owners, mechanics, and technicians in effectively maintaining and repairing their vehicle, ensuring optimal performance and longevity. 🏷️ Basic Information Identification Make: Mazda Model: 6 Year: 2003 Codes Chassis Code: GG/GY (First Generation) 👋 Introduction Market Position Segment: Mid-size Sedan / Wagon Competitors 2003: Honda Accord, Toyota Camry, Nissan Altima, Ford Fusion, Chevrolet Malibu Key Features Driving Dynamics: Known for its engaging driving experience and sporty handling, often praised for its chassis tuning and responsive steering. Design Philosophy: The first generation Mazda6 (Atenza in Japan) was designed to challenge established benchmarks with a focus on sporty styling, performance, and driver engagement. Body Styles: Available as a 4-door Sedan, 5-door Hatchback, and 5-door Sport Wagon. 📋 Manual Details Coverage Areas Coverage Type: Full Service Repair Page Count Estimated Page Count: 1500-2000+ Manual Type Type: Workshop Manual / Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Engine Management, Fuel System, Emission Control, Ignition System, Cooling System, Lubrication System, Turbocharging (if applicable), Exhaust System Drivetrain: Transmission (Manual & Automatic), Clutch, Driveshafts, Axles, Differential Chassis: Suspension (Front & Rear), Steering System, Brakes (Hydraulic, ABS, DSC), Wheels & Tires Electrical: Battery, Charging System, Starting System, Lighting System, Instrumentation, Body Control Modules, Powertrain Control Modules, Audio System, HVAC Controls, Power Accessories (Windows, Locks, Mirrors), Safety Systems (Airbags, Seatbelts) Body And Frame: Body Panels, Doors, Hood, Trunk, Interior Trim, Glass, Seals, Corrosion Protection Procedures Included Maintenance: Scheduled Maintenance (Oil Changes, Filter Replacements, Spark Plugs, Belts, Hoses), Fluid Level Checks & Replacements, Brake Service, Tire Rotation Diagnostics: Troubleshooting Guides, Diagnostic Trouble Codes (DTCs), Wiring Diagrams, Component Testing, Scan Tool Procedures Repair Rebuild: Engine Component Replacement (Pistons, Rods, Crankshaft, Valves), Cylinder Head Repair, Transmission Overhaul, Brake Caliper Rebuild, Suspension Component Replacement, Electrical Component Repair Installation Replacement: Component Installation, Aftermarket Part Installation Guidance, Body Panel Replacement, Interior Component Installation Technical Depth Depth: Comprehensive: Covers everything from basic fluid checks to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text for quick access to information Printability: Printable pages for on-site reference Print Quality Image Resolution: High-resolution images, diagrams, and schematics Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code Usdm: LF-DE (2.3L DOHC Inline-4) Engine Displacement Usdm: 2.3 Liters (2261 cc) Engine Configuration: Inline 4-cylinder, DOHC, 16 Valves Bore X Stroke Usdm: 87.5 mm x 94.0 mm Compression Ratio Usdm: 9.7:1 Horsepower Usdm: 160 hp @ 6,500 rpm Torque Usdm: 155 lb-ft @ 4,000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline Fuel Octane Rating Usdm: 87 Octane (Minimum) Other Engines Other Engine Options Usdm: Optional: 3.0L MZI V6 (1MZ-FE based) - 220 hp (Not typically specified in basic service manuals for the 2.3L base) 🔧 Transmission Standard Transmission Type Usdm: 5-Speed Manual Transmission Optional Transmission Type Usdm: 5-Speed Automatic Transmission with Sport Mode Features Manual Gear Ratios: Refer to manual for specific gear ratios (e.g., 1st: ~3.30, 2nd: ~1.94, 3rd: ~1.33, 4th: ~1.00, 5th: ~0.81, Reverse: ~3.11, Final Drive: ~4.10) Automatic Transmission Fluid Type: Mazda ATF-MV (or equivalent DEXRON-III/MERCON compatible) Manual Transmission Fluid Type: API GL-4 SAE 75W-90 Gear Oil 📐 Dimensions Exterior Length Sedan Wagon: Sedan: Approx. 187.4 in (4760 mm) / Wagon: Approx. 188.4 in (4785 mm) Width: Approx. 70.1 in (1780 mm) Height Sedan Wagon: Sedan: Approx. 56.7 in (1440 mm) / Wagon: Approx. 57.7 in (1465 mm) Wheelbase: Approx....