The MazdaSpeed 3, produced for the 2007 to 2009 model years, represents Mazda's commitment to driving enjoyment, offering a potent blend of turbocharged performance and practical hatchback utility. Built upon the first-generation Mazda3 platform, this compact sport vehicle is distinguished by its aggressive styling, including a functional hood scoop and unique aerodynamic enhancements. At its heart lies a 2.3L MZR DISI turbocharged inline-four engine, delivering an impressive 263 horsepower and 280 lb-ft of torque, paired exclusively with a 6-speed manual transmission and a helical limited-slip differential for enhanced traction and handling. Its performance-tuned suspension, upgraded braking system, and rigid chassis contribute to its reputation as a highly engaging and capable driver's car, earning accolades such as a spot on Car and Driver's 10Best list for 2007. This comprehensive workshop service and repair manual is designed for professional technicians and advanced DIY enthusiasts seeking detailed information on the MazdaSpeed 3 (BK chassis code, L3-VDT engine). Covering over 1000 pages of technical data, it provides in-depth guidance on all major vehicle systems, including the powertrain, drivetrain, chassis, and electrical components. Readers will find detailed procedures for scheduled maintenance, diagnostics, troubleshooting, component repair, and installation, ensuring the proper upkeep and restoration of the vehicle. The manual's extensive scope facilitates a thorough understanding of the MazdaSpeed 3's engineering, empowering users to perform complex maintenance and repair tasks with confidence and precision. 🏷️ Basic Information Identification Make: Mazda Model: MazdaSpeed 3 Year: 2007 Market: North America (primarily) Codes Chassis Code: BK Engine Code: L3-VDT Generation Generation: 1st Generation (BK) Generation Years: 2007-2009 👋 Introduction Market Position Segment: Compact Sport/Performance Hatchback Positioning: Mazda's performance-oriented variant of the mainstream Mazda3, offering a potent blend of turbocharged power, agile handling, and practical hatchback utility. Competitive Analysis Key Competitors: Volkswagen GTI, Subaru Impreza WRX, Honda Civic Si, Mitsubishi Lancer Ralliart. Key Features Engine: 2.3L MZR DISI Turbocharged Inline-4 Transmission: Standard 6-speed Manual Transmission Suspension: Performance-tuned suspension with front strut tower brace for enhanced chassis rigidity. Styling: Aggressive styling cues including a functional hood scoop, unique front grille, aerodynamic body kit, and larger alloy wheels. Brakes: Upgraded braking system with larger front discs and performance brake pads. 📋 Manual Details Coverage Areas Primary Coverage: Workshop Service and Repair Target Audience: Professional Technicians and Advanced DIY Enthusiasts Page Count Estimated Pages: 1000+ Manual Type Manual Format: Digital (PDF Download) Language Language: English Format Digital Format: PDF (Searchable, Printable) 📖 Manual Coverage Systems Covered Powertrain: Engine (L3-VDT), Turbocharger System, Fuel System, Ignition System, Cooling System, Lubrication System, Exhaust System Drivetrain: Front Wheel Drive (FWD), Clutch System, Manual Transmission (MTX) Chassis: Suspension (Front & Rear), Steering System, Brake System (Front & Rear, ABS) Electrical: Engine Control Module (ECM), Body Control Module (BCM), Lighting, Instrumentation, Power Accessories, Audio System, SRS (Airbag) System, Immobilizer Body: Exterior Body Panels, Interior Trim, Climate Control System (HVAC), Safety Restraint System (SRS) Procedures Included Maintenance: Scheduled Maintenance Intervals, Fluid Changes (Oil, Coolant, Brake Fluid), Filter Replacements, Spark Plug Service, Belt Inspection/Replacement Diagnostics: Troubleshooting Charts, Diagnostic Trouble Codes (DTCs), Component Testing, Wiring Diagrams Repair Rebuild: Engine Overhaul, Turbocharger Rebuild, Transmission Repair, Suspension Component Replacement, Brake Caliper Service, Electrical Component Repair Installation Adjustment: Component Installation (e.g., Turbocharger, Alternator), Suspension Alignment, Clutch Adjustment, Wheel Bearing Replacement Technical Depth Depth: Comprehensive: From basic fluid checks and filter changes to full engine and transmission overhauls, including electrical system diagnosis and component-level repair. 📊 Manual Specifications File Format File Type: PDF Searchability: Yes (Text-based PDF) Print Quality Print Readability: High (designed for clear print reproduction) Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Family: Mazda MZR Displacement: 2.3 Liters (2261 cc) Configuration: Inline-4 (I4) Aspiration: Turbocharged (Direct Injection Spark Ignition - DISI) Performance Horsepower: 263 bhp @ 5500 rpm Torque: 280 lb-ft @ 3000 rpm Redline: 6700 rpm (approx.) Fuel System Fuel Delivery: Direct Injection (DISI) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Engine Internals Block Material: Aluminum Alloy Cylinder Head Material: Aluminum Alloy Timing Drive: Timing Chain 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission (MTX) Optional Transmission Type: N/A (Only manual offered for Speed3) Features Drivetrain Layout: Front Wheel Drive (FWD) Clutch Type: Hydraulically Actuated, Multi-Plate Clutch Limited Slip Differential: Standard (Helical type) 📐 Dimensions Exterior Length: 177.2 inches (4498 mm) Width: 69.1 inches (1755 mm) Height: 57.9 inches (1471 mm) Wheelbase: 104.7 inches (2659 mm) Front Track: 60.4 inches (1535 mm) Rear Track: 59.8 inches (1519 mm) Weights Curb Weight: 3274 lbs (1485 kg) Gross Vehicle Weight Rating: 4300 lbs (1950 kg) Cargo Cargo Volume: 15.7 cubic feet (behind rear seats) Maximum Cargo Volume: 42.7 cubic feet (with rear seats folded) 🛡️ Safety Features Ratings NHTSA Frontal Driver: 5-Star NHTSA Frontal Passenger: 5-Star IIHS Moderate Overlap Frontal Offset: Good IIHS Side Impact: Good Active Features ABS: Standard...