The MazdaSpeed 3, produced from 2007 to 2009, represents a potent compact performance hatchback engineered for driving enthusiasts. Based on the BK chassis, this model is distinguished by its powerful 2.3L MZR DISI Turbo engine, delivering 263 horsepower and 280 lb-ft of torque, coupled with a standard 6-speed manual transmission and a helical limited-slip differential. Its sporty suspension, robust braking system, and practical five-door body style offer a compelling blend of performance and everyday usability. The commitment to driving dynamics is evident in the MazdaSpeed 3's sharp handling and engaging road manners, positioning it as a strong contender in its segment. This comprehensive service manual provides detailed technical information and procedures for the 2007 MazdaSpeed 3. It covers all essential vehicle systems, including the powertrain, chassis, and electrical components, with a specific focus on the 2.3L turbocharged engine and its associated systems. The manual offers in-depth guidance on scheduled maintenance, component removal and installation, diagnostic troubleshooting, and detailed specifications. Whether you are performing routine upkeep or complex repairs, this resource is designed to assist owners, technicians, and mechanics in maintaining the optimal performance and longevity of their MazdaSpeed 3. 🏷️ Basic Information Identification Make: Mazda Model: MazdaSpeed 3 Year: 2007 Chassis Code: BK Codes Engine Code: L3-VDT 👋 Introduction Market Position Segment: Compact Performance Hatchback Target Audience: Enthusiasts seeking a potent, driver-focused, practical hatchback Competitive Analysis Key Rivals: Volkswagen GTI, Subaru WRX, Honda Civic Si Key Features Performance Focus: Turbocharged engine, sport-tuned suspension, powerful brakes, front-wheel-drive dynamics Practicality: Five-door hatchback body style, usable rear seats, cargo space 📋 Manual Details Coverage Areas Primary Coverage: MazdaSpeed 3 (BK generation) Engine Coverage: 2.3L MZR DISI Turbo (L3-VDT) Model Year Coverage: 2007 Page Count Estimated Pages: Approximately 2000+ pages (typical for a comprehensive service manual) Manual Type Type: Factory Service Manual (FSM) / Repair Manual Language Language: English Format Format: Digital (PDF likely, based on description) 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Ignition System, Exhaust System, Transmission (Manual & Automatic), Drivetrain Chassis: Suspension (Front & Rear), Steering, Brakes (ABS, EBD, DSC), Wheels & Tires Electrical: Body Control Module (BCM), Powertrain Control Module (PCM), Lighting, Instrumentation, Audio System, HVAC Controls, Power Accessories Body: Body Panels, Doors, Windows, Seats, Exterior Trim, Interior Trim, Seals Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication Repair: Component removal and installation, part replacement, system adjustments Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), circuit diagrams, symptom-based diagnostics Specifications: Torque specifications, clearances, fluid capacities, electrical values Technical Depth Depth: Comprehensive (from basic maintenance to complete engine/transmission rebuilds, complex electrical diagnostics) 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text within PDF for quick information retrieval Print Quality Image Clarity: High resolution for diagrams and illustrations Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Family: MZR (Mazda) DISI (Direct Injection Spark Ignition) Turbo Configuration: Inline-4 (I4) Displacement: 2.3 Liters (2261 cc) Aspiration: Turbocharged and Intercooled Bore X Stroke: 87.5 mm x 94.0 mm Compression Ratio: 9.5:1 Performance Horsepower Hp: 263 hp @ 5500 rpm Torque Lb-Ft: 280 lb-ft @ 3000 rpm Fuel System Injection Type: Direct Injection (DISI) Fuel Type: Premium Unleaded Gasoline (91+ octane recommended) Fuel Pump Pressure: Specific high-pressure fuel pump system Maintenance Oil Type: SAE 5W-30 Full Synthetic Oil Capacity: 5.1 US quarts (4.8 liters) with filter change Spark Plugs: NGK LTR7AI-10 (or equivalent, specific heat range for boosted engines) Timing Belt Or Chain: Timing Chain 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission (MZ6) Optional Transmission Type: No automatic transmission option for MazdaSpeed 3 Features Limited Slip Differential: Standard Helical Limited-Slip Differential (LSD) Maintenance Manual Transmission Fluid Type: GL-4 SAE 75W-90 (specific Mazda or equivalent) Manual Transmission Fluid Capacity: Approximately 2.2 US quarts (2.1 liters) 📐 Dimensions Exterior Length: 177.0 inches (4496 mm) Width: 70.1 inches (1780 mm) Height: 57.1 inches (1450 mm) Wheelbase: 104.7 inches (2659 mm) Weights Curb Weight: Approx. 3250-3300 lbs (1474-1497 kg) Gross Vehicle Weight Rating Gvwr: 5000+ lbs (specific value may vary) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (Driver and Passenger) NHTSA Side Impact: 5-Star (Front and Rear Seat Passengers) IIHS Top Safety Pick: Yes (Good ratings in multiple categories) Active Features Electronic Stability Control: DSC (Dynamic Stability Control) with Traction Control Antilock Braking System: ABS with Electronic Brakeforce Distribution (EBD) Brake Assist: Yes Passive Features Airbags: Front dual-stage, front side-impact, side-curtain airbags Seatbelts: 3-point ELR front and rear seatbelts with pretensioners and load limiters 💡 Technology Features Infotainment Audio System: Bose premium audio system with subwoofer (optional on some trims) Head Unit: Multi-function display with AM/FM, CD player, MP3 compatibility, and auxiliary input. Driver Assistance Cruise Control: Standard electronic cruise control Connectivity Bluetooth: Optional Bluetooth hands-free connectivity Performance Tech Engine Management: Electronic engine control unit (ECU) managing fuel, ignition, and turbo...