The MazdaSpeed 3, produced in 2007, represents a potent compact sport hatchback engineered for enthusiast drivers. This model, built on the BK chassis, features a formidable 2.3L MZR DISI turbocharged inline-4 engine, delivering an impressive 263 horsepower and 280 lb-ft of torque, paired exclusively with a 6-speed manual transmission. Its design emphasizes performance and handling, with a sport-tuned suspension, precise steering, and a practical hatchback body style, making it a versatile choice for those seeking spirited driving without sacrificing everyday utility. This manual provides comprehensive maintenance and repair procedures for the 2007 MazdaSpeed 3. It covers all major systems, including the powertrain with its turbocharged engine and manual transmission, chassis components such as suspension and brakes, and the vehicle's electrical and body systems. Within its extensive scope, users will find detailed information on scheduled maintenance, fluid specifications, troubleshooting guides for common issues like the high-pressure fuel pump, diagnostic trouble codes, and detailed technical specifications. This resource is designed to assist owners and technicians in maintaining, diagnosing, and repairing the vehicle effectively. 🏷️ Basic Information Identification Make: Mazda Model: MazdaSpeed 3 Year: 2007 Engine Variant: 1.5 L MZR I4 Codes Chassis Code: BK Engine Code: L3-VDT (turbocharged MZR DISI) 👋 Introduction Market Position Segment: Compact Sport/Hot Hatch Target Audience: Enthusiast drivers seeking performance and handling in a practical package. Competitive Analysis Key Competitors: Volkswagen GTI, Subaru WRX, Mitsubishi Lancer Evolution (entry-level), Honda Civic Si. Key Features Engine Performance: Turbocharged 2.3L MZR DISI engine delivering strong torque and acceleration. Handling: Sport-tuned suspension, performance tires, and precise steering for excellent cornering ability. Practicality: Hatchback design offers versatility and cargo space. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive Maintenance and Repair Procedures Page Count Estimated Page Count: 1500-2000 (typical for full service manuals) Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital (PDF/eBook) 📖 Manual Coverage Systems Covered Powertrain: Engine (L3-VDT), Turbocharger, Fuel System, Exhaust System, Transmission (Manual MTX-75) Chassis: Suspension (Front: MacPherson Strut, Rear: Multi-link), Steering (Electric Power Assisted), Brakes (Front: Ventilated Discs, Rear: Solid Discs) Electrical: Charging System, Starting System, Ignition System, Lighting, Instrumentation, Body Control Module (BCM), Powertrain Control Module (PCM), Infotainment Body: Exterior Body Panels, Doors, Hood, Trunk, Interior Trim, HVAC System, Seats Procedures Included Maintenance: Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Replacements Repair: Engine Overhaul, Turbocharger Rebuild, Transmission Overhaul, Suspension Component Replacement, Brake System Repair, Electrical Component Diagnosis and Replacement Troubleshooting: Diagnostic Trouble Codes (DTCs), Symptom-based Troubleshooting Guides, Wiring Diagrams Specifications: Torque Specifications, Clearances, Component Dimensions, Electrical Schematics Technical Depth Depth: From basic fluid changes to complete engine and transmission rebuilds, including advanced diagnostic procedures. 📊 Manual Specifications File Format File Quality: High-resolution scans, searchable text where available. Print Quality Print Readability: Clear, legible text and diagrams suitable for printing. Binding Type Binding Style: N/A (Digital) Paper Type Paper Quality: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, turbocharged and intercooled, Direct Injection Spark Ignition (DISI) Engine Displacement: 2.3 Liters (2261 cc) Bore X Stroke: 87.5 mm x 94.0 mm Compression Ratio: 8.5:1 Valve Train: DOHC, 16 valves, Variable Valve Timing (VVT) Performance Horsepower: 263 hp @ 5500 rpm Torque: 280 lb-ft @ 3000 rpm Fuel System Fuel Delivery: Direct Injection, Sequential Electronic Fuel Injection (SEFI) Fuel Type: Premium Unleaded Gasoline (91 Octane Recommended) Turbocharger Details: Mitsubishi TD04-15G, Twin-Scroll Turbocharger with Intercooler 🔧 Transmission Standard Type: 6-speed Manual Transmission Gear Ratios: 1st: 3.755, 2nd: 2.150, 3rd: 1.481, 4th: 1.151, 5th: 0.971, 6th: 0.794, Reverse: 3.400 Final Drive Ratio: 3.647 Optional Type: N/A (Only Manual Available) Features Clutch Type: Hydraulic, Single Dry Plate Transmission Fluid Type: Mazda GL-4 Gear Oil (SAE 75W-90) Transmission Fluid Capacity: 2.1 Liters (2.2 US Quarts) 📐 Dimensions Exterior Length: 177.0 inches (4495 mm) Width: 70.9 inches (1800 mm) Height: 57.9 inches (1470 mm) Wheelbase: 104.1 inches (2645 mm) Front Track: 61.2 inches (1555 mm) Rear Track: 60.8 inches (1545 mm) Interior Front Headroom: 38.3 inches (973 mm) Front Legroom: 41.4 inches (1052 mm) Rear Headroom: 37.9 inches (963 mm) Rear Legroom: 32.7 inches (831 mm) Cargo Cargo Volume Seats Up: 15.7 cu ft (445 L) Cargo Volume Seats Down: 42.7 cu ft (1209 L) Weights Curb Weight: 3225 lbs (1463 kg) Gross Vehicle Weight Rating: 4355 lbs (1975 kg) 🛡️ Safety Features Ratings NHTSA Frontal Crash: 5 Stars NHTSA Side Impact: 5 Stars IIHS Moderate Overlap Frontal Offset: Good IIHS Side Impact: Good Active Features ABS: Standard, 4-wheel Anti-lock Braking System Traction Control: Standard, Dynamic Stability Control (DSC) with Traction Control System (TCS) Electronic Brake Force Distribution: Standard (EBD) Passive Features Airbags: Driver and Front Passenger Airbags, Front Side-Impact Airbags, Side-Curtain Airbags Seatbelts: 3-point ELR Seatbelts with Pretensioners and Load Limiters Child Seat Anchors: LATCH (Lower Anchors and Tethers for Children) System 💡 Technology Features Infotainment Audio System: Bose premium audio system...