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            The Mazda3 Mazdaspeed3 2nd Gen (2010) is a performance-oriented compact sedan/hatchback, targeting enthusiasts seeking a sporty driving experience with everyday practicality. It competes with vehicles like the Volkswagen GTI, Subaru WRX, and Ford Focus ST.
        
     
    
    
        
            Key Advantages:
        
        
            Known for its strong turbocharged engine, agile handling, unique styling, and enthusiast-focused tuning potential. The Mazdaspeed3 offered a compelling blend of performance and affordability in its segment.
        
     
    
    
        
            Performance Focus:
        
        
            The manual provides deep insights into optimizing and maintaining the high-performance MZR DISI turbocharged engine and sport-tuned suspension.
        
     
    
        
            Technical Documentation:
        
        
            This workshop manual is an essential tool for technicians and owners who want to perform in-depth maintenance, diagnostics, and repairs with factory-level accuracy.
        
     
 
    
    
    
        
            Engine Management:
        
        
            Detailed coverage of ECU, sensors, actuators, ignition, fuel injection, and emission controls.
        
     
    
        
            Turbocharger System:
        
        
            Specifics on the Garrett turbocharger, wastegate, intercooler, and associated plumbing.
        
     
    
        
            Powertrain Control:
        
        
            Comprehensive schematics and diagnostic procedures for all powertrain components.
        
     
    
        
            Chassis Dynamics:
        
        
            In-depth analysis of ABS, DSC (Dynamic Stability Control), and AWD (if applicable).
        
     
    
        
            Climate Control:
        
        
            Manual and automatic HVAC system diagnosis and repair.
        
     
    
        
            Infotainment Audio:
        
        
            Diagnosis and repair of audio units, navigation, and speaker systems.
        
     
    
        
            Body Control Module:
        
        
            Diagnosis and programming of BCM functions, lighting, and power accessories.
        
     
    
        
            Instrument Cluster:
        
        
            Troubleshooting and repair of gauges, warning lights, and displays.
        
     
    
    
        
            Scheduled Maintenance:
        
        
            Detailed steps for oil changes, filter replacements, fluid checks, spark plug replacement, and brake service.
        
     
    
        
            Engine Overhaul:
        
        
            Complete disassembly, inspection, and reassembly procedures for the MZR DISI engine.
        
     
    
        
            Transmission Rebuild:
        
        
            Step-by-step instructions for manual and automatic transmission overhaul.
        
     
    
        
            Suspension Component Replacement:
        
        
            Guidelines for replacing struts, shocks, bushings, ball joints, and control arms.
        
     
    
        
            Brake System Service:
        
        
            Procedures for brake pad and rotor replacement, caliper service, and brake fluid bleeding.
        
     
    
        
            Electrical Component Testing:
        
        
            Methods for testing alternators, starters, batteries, and various sensors.
        
     
    
        
            Body Panel Alignment And Repair:
        
        
            Techniques for door, hood, and trunk alignment; minor body repair guidance.
        
     
    
        
            Diagnostic Trouble Code Diagnosis:
        
        
            Interpretation of DTCs and systematic approaches to diagnose faults.
        
     
    
        
            Timing Belt Or Chain Replacement:
        
        
            Specific procedures and timing marks for engine timing components.
        
     
    
        
            Turbocharger Replacement:
        
        
            Detailed steps for removing and installing the turbocharger and related components.
        
     
    
    
        
            Depth:
        
        
            Comprehensive, covering detailed diagnostics, component-level repair, and complete system overhauls. Suitable for professional technicians and advanced DIY enthusiasts.
        
     
 
    
    
    
        
            Engine Code:
        
        
            MZR DISI Turbo (LF-VD)
        
     
    
        
            Engine Type:
        
        
            2.3L Inline-4 Cylinder, DOHC, 16-Valve, Direct Injection, Turbocharged
        
     
    
    
        
            Horsepower:
        
        
            263 hp @ 5500 rpm
        
     
    
        
            Torque:
        
        
            280 lb-ft @ 3000 rpm
        
     
    
    
        
            Fuel Delivery:
        
        
            Direct Injection (DI), Turbocharged
        
     
    
        
            Fuel Type:
        
        
            Premium Unleaded Gasoline (91 Octane or higher recommended)
        
     
    
    
        
            ECU Type:
        
        
            Denso ECU with specific performance tuning parameters.
        
     
 
    
    
    
        
            Type:
        
        
            6-speed Manual Transmission (MTRAN)
        
     
    
    
        
            Type:
        
        
            None offered for Mazdaspeed3 model in 2010.
        
     
    
    
        
            Clutch:
        
        
            Hydraulically actuated single-plate dry clutch.
        
     
    
    
        
            Manual Transmission Fluid:
        
        
            GL-4 SAE 75W-90 (Mazda Genuine Oil or equivalent, e.g., Mobil 1 Synthetic Gear Lube)
        
     
 
    
    
    
        
            NHTSA Front Impact:
        
        
            5-Star
        
     
    
    
    
        
            Stability Control:
        
        
            Standard DSC (Dynamic Stability Control) and TCS (Traction Control System)
        
     
    
        
            Brakes:
        
        
            4-wheel Anti-lock Braking System (ABS) with Electronic Brakeforce Distribution (EBD) and Brake Assist (BA).
        
     
    
    
        
            Airbags:
        
        
            Front dual-stage airbags, front side-impact airbags, side-impact curtain airbags.
        
     
    
        
            Seatbelts:
        
        
            Three-point seatbelts with pretensioners and load limiters.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 5,000 miles (8,000 km) or 6 months, whichever comes first (under normal driving conditions). Severe driving may require more frequent changes.
        
     
    
        
            Engine Air Filter:
        
        
            Inspect every 15,000 miles (24,000 km), replace as needed. Replacement recommended every 30,000 miles (48,000 km).
        
     
    
        
            Spark Plugs:
        
        
            Iridium-tipped spark plugs: replace every 75,000 miles (120,000 km).
        
     
    
        
            Cabin Air Filter:
        
        
            Replace every 15,000 miles (24,000 km) or annually.
        
     
    
    
        
            Engine Oil:
        
        
            SAE 5W-30, API SN/SP, ILSAC GF-5/GF-6A (Synthetic Recommended). Capacity: 5.7 US quarts (5.4 liters) with filter.
        
     
    
        
            Coolant:
        
        
            Mazda Super Long Life Coolant (FL22) or equivalent (50/50 mix of ethylene glycol and deionized water). Capacity: 7.5 US quarts (7.1 liters).
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4.
        
     
    
    
        
            Engine Carbon Buildup:
        
        
            Direct injection engines can experience carbon buildup on intake valves. The manual details cleaning procedures.
        
     
    
        
            Clutch Wear:
        
        
            Aggressive driving can lead to faster clutch wear. Manual provides replacement procedures.
        
     
    
        
            Harmonic Balancer:
        
        
            Some owners have reported issues with the harmonic balancer. Manual covers inspection and replacement.
        
     
 
    
    
    
        
            Mazda Sporting Legacy:
        
        
            Mazda has a long history of producing driver-focused vehicles, including the iconic RX-7 and the successful MX-5 Miata, establishing a reputation for sporty handling and engaging driving dynamics.
        
     
    
    
        
            Generation Overview:
        
        
            The 2nd Generation Mazda3 (BL) was introduced for the 2009 model year. The Mazdaspeed3 variant, launched in 2007 for the 1st gen, continued with enhancements for the 2nd gen, featuring a more powerful engine, revised styling, and improved chassis dynamics.
        
     
    
    
        
            Manufacturing Location:
        
        
            Hofu, Yamaguchi Prefecture, Japan