The 2007 MazdaMazdaSpeed3 is a performance-oriented compact hatchback renowned for its potent turbocharged engine, agile handling, and aggressive styling, making it a standout in the hot hatch segment. Built on the Mazda3 BK platform, this model offers a thrilling driving experience with its 2.3 L turbocharged inline-4 engine producing 263 horsepower and 280 lb-ft of torque, paired exclusively with a 6-speed manual transmission and front-wheel drive. Its sport-tuned suspension, powerful braking system, and comprehensive safety features, including standard ABS, traction control, and multiple airbags, contribute to its reputation for accessible performance and driver engagement, appealing to enthusiasts seeking a practical yet exhilarating vehicle. This Workshop Service Repair Manual provides comprehensive guidance for the maintenance, diagnosis, and repair of the 2007 MazdaMazdaSpeed3. It covers all major vehicle systems, including the engine, manual transmission, drivetrain, suspension, brakes, steering, and electrical systems, detailing procedures from routine maintenance such as oil changes and filter replacements to in-depth repairs like complete engine overhauls and component rebuilds. The manual also includes essential technical specifications, torque values, wiring diagrams, and troubleshooting guides, equipping professional technicians and enthusiastic owners with the knowledge needed to keep this performance vehicle in optimal condition. 🏷️ Basic Information Identification Make: Mazda Model: MazdaSpeed3 Year: 2007 Chassis Code: BK Codes Engine Code Prefix: L3 👋 Introduction Market Position Segment: Compact Sport / Hot Hatch Usp: Performance-oriented, turbocharged engine, sporty handling, aggressive styling, enthusiast appeal. Competitive Analysis Competitors: Volkswagen GTI, Subaru WRX, Mitsubishi Lancer Evolution (though more budget-oriented than EVO), Honda Civic Si. Key Features Engine Type: Turbocharged Inline-4 Drivetrain: Front-Wheel Drive (FWD) with Active Torque Splitter (ATS) on some models/markets (though primarily FWD on the Speed3). Suspension Tuning: Sport-tuned suspension for enhanced handling and cornering. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Repair Manual Language: English Format: PDF Download Availability: Instant Download Intended Audience: Professional Technicians and Enthusiasts Page Count Estimated Pages: 1500+ 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, diagnostics, tuning, fuel injection, ignition system, cooling system, lubrication system, emission control. Transmission: Manual transmission (MTX) service, diagnostics, repair, clutch system, shift linkage. Drivetrain: Front-wheel drive, differentials, axles, CV joints, wheel bearings. Suspension: Front MacPherson struts, rear multi-link suspension, shock absorbers, springs, control arms, sway bars, alignment specifications. Brakes: Front and rear disc brakes, ABS system, brake fluid specifications, pad/rotor replacement, hydraulic system diagnostics. Steering: Power-assisted rack and pinion steering, steering column, linkages, fluid specifications. Electrical: Battery, charging system, starter, lighting, wipers, horn, power windows, central locking, fuse/relay locations, wiring diagrams. HVAC: Air conditioning system, heater, ventilation, climate control module, refrigerant specifications. Body: Exterior body panels, doors, hood, trunk, bumpers, interior trim, glass, seals, lubrication of moving parts. Chassis: Frame structure, body mounting, corrosion protection. Safety Systems: Airbag system, seatbelts, SRS components, diagnostic procedures. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks, brake inspections, belt inspections. Diagnostics: Troubleshooting guides, DTC (Diagnostic Trouble Code) interpretation, sensor testing, electrical component testing. Repair: Engine component replacement (pistons, rings, valves), transmission overhaul, brake caliper rebuild, suspension component replacement, electrical connector repair. Disassembly Assembly: Step-by-step instructions for dismantling and reassembling major vehicle components. Torque Specifications: Detailed torque values for critical fasteners across all systems. Technical Depth Depth Level: Comprehensive, covering basic maintenance to complete engine and transmission rebuilds, advanced diagnostics. Special Tools: Identification and usage instructions for specialized tools required for specific procedures. Wiring Diagrams: Detailed electrical schematics for all vehicle systems. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content Print Quality: High-resolution, printable pages Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: L3-VDT Displacement: 2.3 L (2261 cc) Configuration: Inline-4 (I4) Aspiration: Turbocharged and Intercooled Performance Horsepower: 263 hp @ 5500 rpm Torque: 280 lb-ft @ 3000 rpm Redline: 6700 rpm Fuel System Fuel Type: Unleaded Gasoline Fuel Octane Requirement: Premium (91 RON or higher recommended for optimal performance) Injection System: Sequential Electronic Fuel Injection (S-EFI) Turbocharger Model: Mitsubishi TD04 (specific variant may vary slightly, typically a TD04-15G or similar) Compression Ratio: 9.5:1 Bore X Stroke: 87.5 mm x 94.0 mm 🔧 Transmission Standard Transmission Type: 6-Speed Manual (MTX) Optional Optional Transmission: N/A (Only manual offered for Speed3) Features Gear Ratios: Specific ratios available in the manual, generally optimized for acceleration. Clutch Type: Hydraulically actuated, multi-plate clutch. Transmission Fluid Spec: Mazda GL-4 75W-90 Synthetic Gear Oil (or equivalent meeting API GL-4 specifications) 📐 Dimensions Exterior Length: 176.1 inches (4473 mm) Width: 70.1 inches (1781 mm) Height: 57.1 inches (1450 mm) Wheelbase: 104.3 inches (2650 mm) Track Width Front: 60.6 inches (1539 mm) Track Width Rear: 60.2 inches (1529 mm) Ground Clearance: Approximately 5.3 inches (135 mm) Weights Curb Weight: Approximately 3150 lbs (1430 kg) Gross Vehicle Weight Rating Gvwr: Typically around 4100 lbs (1860 kg) Cargo Cargo Volume Rear Seats Up: 15.1 cubic feet...