The MazdaSpeed3, produced from 2007 to 2009, is a first-generation compact performance hatchback engineered for enthusiast drivers. This model is distinguished by its potent 2.3-liter MZR DISI Turbo engine, delivering 263 horsepower and 280 lb-ft of torque, paired exclusively with a 6-speed manual transmission. Its sport-tuned suspension, performance braking system, and practical five-door utility solidify its position as a compelling option in its segment. Recognized for its dynamic driving characteristics, the MazdaSpeed3 was even named to Car and Driver's 10Best list for 2007, underscoring its engineering prowess and appeal. This comprehensive factory service manual provides detailed procedures for the maintenance, diagnosis, and repair of the MazdaSpeed3 (BK chassis). It covers all essential systems, including the engine, manual transmission, brakes, suspension, steering, electrical components, HVAC, and body. Within its extensive pages, owners and technicians will find step-by-step instructions for scheduled maintenance, troubleshooting common issues, component removal and installation, and detailed technical specifications. The manual's digital format ensures searchable text and high-resolution diagrams, facilitating efficient and accurate upkeep of the vehicle. 🏷️ Basic Information Identification Make: Mazda Model: MazdaSpeed3 Year: 2007 Generation: 1st Generation Codes Chassis Code: BK 👋 Introduction Market Position Segment: Compact Performance Hatchback Target Audience: Enthusiast drivers seeking a practical yet potent vehicle Competitive Analysis Key Competitors: Volkswagen GTI, Subaru WRX, Honda Civic Si, Mitsubishi Lancer Ralliart Key Features Performance Focus: Turbocharged engine, sport-tuned suspension, performance braking system Practicality: Hatchback utility, five-door configuration 📋 Manual Details Coverage Areas Coverage: Full Service and Repair Procedures Page Count Pages: Extensive (typically 1000+ pages for a full factory service manual) Manual Type Type: Factory Service Manual (FSM) / Workshop Manual Language Language: English Format Format: Digital (PDF/eBook) 📖 Manual Coverage Systems Covered Engine: Engine mechanical, lubrication, cooling, fuel, ignition, emissions control, engine management (ECU/PCM), turbocharging system Transmission: Manual transmission (MTX), clutch, driveline, propeller shaft, differentials Brakes: Front and rear brakes, ABS (Anti-lock Braking System), EBD (Electronic Brakeforce Distribution), brake system bleeding, hydraulic circuits Suspension: Front and rear suspension, struts, shocks, springs, control arms, anti-roll bars, wheel alignment Steering: Power steering system, steering column, steering rack, tie rod ends Electrical: Battery, charging system, starting system, lighting, instrumentation, power accessories, body control modules (BCM), multiplex communication systems (CAN bus) HVAC: Heating, Ventilation, and Air Conditioning (HVAC) system, refrigerant circuits, controls, blower motor Body: Exterior body panels, doors, windows, locks, mirrors, interior trim, safety restraints (airbags, seat belts) Procedures Included Maintenance: Scheduled maintenance intervals, oil changes, filter replacements, fluid checks and replacements, spark plug replacement, belt inspection/replacement Diagnostics: Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs) interpretation, electrical circuit testing Repair: Component removal and installation, disassembly and reassembly, adjustments, calibration, component testing Engine Repair: Engine overhauls, cylinder head removal/installation, piston and connecting rod replacement, crankshaft service, timing chain/belt service Transmission Repair: Clutch replacement, transmission disassembly/reassembly, gear synchro repair, bearing replacement Electrical Repair: Wiring harness repair, component replacement (alternator, starter, sensors), module testing and replacement Technical Depth Depth: Comprehensive: Covers basic maintenance to full engine and transmission rebuilds, including detailed diagnostic procedures and wiring diagrams. 📊 Manual Specifications File Format Searchable Text: Yes (for PDF formats) Digital Rights Management: Typically none (unrestricted use for personal reference) Print Quality Clarity: High-resolution diagrams and text Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: MZR DISI Turbo (LF-VDS) Engine Type: Inline 4-cylinder, turbocharged, intercooled Displacement: 2.3 Liters (2261 cc) Bore X Stroke: 87.5 mm x 94.0 mm Compression Ratio: 9.1:1 Performance Horsepower: 263 hp @ 5500 rpm Torque: 280 lb-ft @ 3000 rpm Fuel System Fuel Delivery: Direct Injection (DISI), Sequential Electronic Fuel Injection Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Management ECM Type: Denso ECU Turbocharging Turbocharger Model: Mitsubishi TD04-15G or similar Boost Pressure: Approx. 15-17 psi (1.0-1.2 bar) 🔧 Transmission Standard Type: 6-Speed Manual Transmission (MTX) Optional Transmission Options: None (Manual transmission only) Features Gear Ratios 1St: 3.667 Gear Ratios 2Nd: 2.077 Gear Ratios 3Rd: 1.363 Gear Ratios 4Th: 1.029 Gear Ratios 5Th: 0.833 Gear Ratios 6Th: 0.700 Final Drive Ratio: 3.944 Fluid Specifications Transmission Fluid Type: API GL-4 SAE 75W-90 Gear Oil (e.g., Mazda Genuine Oil or equivalent) 📐 Dimensions Exterior Length: 177.1 inches (4498 mm) Width: 70.1 inches (1781 mm) Height: 57.7 inches (1466 mm) Wheelbase: 104.7 inches (2659 mm) Front Track: 60.8 inches (1545 mm) Rear Track: 60.4 inches (1535 mm) Interior Front Headroom: 39.7 inches (1008 mm) Front Legroom: 42.9 inches (1090 mm) Rear Headroom: 38.3 inches (973 mm) Rear Legroom: 37.9 inches (963 mm) Cargo Cargo Volume Seats Up: 15.1 cubic feet (428 L) Cargo Volume Seats Down: 42.7 cubic feet (1209 L) Weights Curb Weight: 3107 lbs (1409 kg) Gross Vehicle Weight Rating Gvwr: 4167 lbs (1890 kg) Wheels Tires Wheel Size: 18 x 7.5 inches Wheel Bolt Pattern: 5x114.3 mm (5x4.5 inches) Tire Size:...