Segment:
        
        
            Compact car, known for sporty handling and upscale interior for its class.
        
     
    
    
        
            Competitors:
        
        
            Honda Civic, Toyota Corolla, Subaru Impreza, Volkswagen Golf, Ford Focus.
        
     
    
    
        
            Model Strengths:
        
        
            Engaging driving dynamics (especially Mazdaspeed3), stylish design, good fuel economy, reliable powertrains, available AWD (on some non-Mazdaspeed models).
        
     
    
    
        
            Benefit To Owner:
        
        
            Empowers owners to perform their own maintenance and repairs, saving significant costs compared to dealership or independent shop labor.
        
     
 
    
    
    
        
            Engine:
        
        
            Engine mechanical, cooling system, lubrication system, fuel system, ignition system, emissions control, engine electrical system, engine overhaul, turbocharger (Mazdaspeed3).
        
     
    
        
            Transmission:
        
        
            Manual transmission (MZR-CD), Automatic transmission (FS5A-EL, GF4AX-EL), clutch system, driveline components (drive shafts, differentials).
        
     
    
        
            Suspension Steering:
        
        
            Front suspension (struts, control arms, stabilizer bar), rear suspension (multi-link), steering system (power steering, column, rack and pinion), wheel alignment specifications.
        
     
    
        
            Brakes:
        
        
            Front and rear brake systems (disc brakes), ABS (Anti-lock Braking System), EBD (Electronic Brakeforce Distribution), brake fluid specifications, bleeding procedures, parking brake.
        
     
    
        
            Electrical Electronics:
        
        
            Body electrical system, lighting, instrument cluster, power windows, power locks, mirrors, wipers, horn, infotainment system, ECU (Engine Control Unit) diagnostics, wiring diagrams, fuse box layouts, battery, charging system.
        
     
    
        
            Body Chassis:
        
        
            Body and chassis construction, exterior panels, interior trim, doors, hood, trunk, glass, climate control system (HVAC), seats, safety restraints (airbags, seatbelts).
        
     
    
    
        
            Maintenance:
        
        
            Oil changes, filter replacements, fluid checks and top-offs, tire rotation, spark plug replacement, air filter replacement, coolant system service, brake fluid flush, battery maintenance.
        
     
    
        
            Diagnostics Troubleshooting:
        
        
            Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, component testing procedures, fault finding charts.
        
     
    
        
            Repair Rebuild:
        
        
            Engine disassembly and reassembly, transmission repair, brake component replacement, suspension overhaul, electrical component repair, body panel repair.
        
     
    
        
            Installation Replacement:
        
        
            Component replacement procedures for all major systems, alignment procedures after suspension work, calibration procedures for sensors.
        
     
    
    
        
            Depth:
        
        
            Comprehensive from basic maintenance to advanced diagnostics and complete mechanical overhauls, including detailed specifications and torque values.
        
     
 
    
    
    
        
            Engine Options:
        
        
            2.0L MZR I4 (LF-VE), 2.3L MZR I4 (L3-VDT - DISI Turbocharged for Mazdaspeed3), 2.5L MZR I4 (L5-VE).
        
     
    
    
        
            2.3L Disi Turbo (Mazdaspeed3):
        
        
            Approx. 263 horsepower @ 5500 RPM, 280 lb-ft torque @ 3000 RPM.
        
     
    
        
            2.5L Mzr:
        
        
            Approx. 167 horsepower @ 6000 RPM, 168 lb-ft torque @ 4500 RPM.
        
     
    
    
        
            Injection Type:
        
        
            Sequential Electronic Fuel Injection (MPI), Direct Injection (DISI for Mazdaspeed3).
        
     
    
    
        
            Coolant Type:
        
        
            Mazda FL22 Long Life Antifreeze (Green)
        
     
    
    
        
            Oil Capacity 2.5L:
        
        
            4.8 US quarts (4.5 liters) with filter change.
        
     
    
        
            Recommended Oil Viscosity:
        
        
            SAE 5W-20 (for most gasoline engines, check manual for specific variations).
        
     
 
    
    
    
        
            Standard Transmission:
        
        
            6-speed manual (for Mazdaspeed3), 5-speed manual (for some non-Mazdaspeed models).
        
     
    
    
        
            Optional Transmission:
        
        
            5-speed automatic (FS5A-EL), 6-speed automatic (GF4AX-EL - possibly for later models or specific markets).
        
     
    
    
        
            Mazdaspeed Transmission:
        
        
            Reinforced 6-speed manual transmission designed for higher torque output.
        
     
    
    
        
            Manual Transmission Fluid:
        
        
            API GL-4 SAE 75W-90 Gear Oil (Mazda Manual Transmission Fluid recommended).
        
     
    
        
            Automatic Transmission Fluid:
        
        
            Mazda ATF-SH (or equivalent specified fluid, e.g., Mercon V compatible).
        
     
 
    
    
    
        
            IIHS Top Safety Pick:
        
        
            The Mazda3 (second generation) generally received good safety ratings, often achieving IIHS Top Safety Pick status in its respective years.
        
     
    
    
        
            Standard Safety:
        
        
            Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), Traction Control System (TCS), Dynamic Stability Control (DSC), front and side airbags.
        
     
    
    
        
            Airbag System:
        
        
            Front dual-stage airbags, front side-impact airbags, side-curtain airbags.
        
     
 
    
    
    
        
            Infotainment System:
        
        
            Available Bose premium audio system, navigation system (optional), Bluetooth connectivity, SiriusXM Satellite Radio.
        
     
    
    
        
            Assistance Features:
        
        
            Rain-sensing wipers, automatic climate control, keyless entry and push-button start (optional), cruise control.
        
     
    
    
        
            Bluetooth Features:
        
        
            Hands-free phone capability, audio streaming (if equipped).
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Typically every 7,500 miles (12,000 km) or 6 months, whichever comes first (under normal driving conditions, refer to manual for severe conditions).
        
     
    
        
            Engine Air Filter:
        
        
            Inspect every 15,000 miles (24,000 km), replace as needed or at around 30,000 miles (48,000 km).
        
     
    
        
            Spark Plugs:
        
        
            Iridium spark plugs typically have a longer service life, often recommended replacement at 75,000 - 100,000 miles (120,000 - 160,000 km).
        
     
    
    
        
            Brake Fluid Type:
        
        
            DOT 3 or DOT 4 Brake Fluid.
        
     
    
        
            Power Steering Fluid:
        
        
            Mazda Power Steering Fluid or ATF Dexron III (check manual for precise specification).
        
     
    
    
        
            Common Minor Issues:
        
        
            Occasional reports of AC compressor issues, minor interior trim rattles, and potential for oil consumption in some higher mileage engines. Water pump seals can sometimes leak.
        
     
    
        
            Common Mazdaspeed Issues:
        
        
            Turbocharger system health is critical; owners should monitor oil levels closely. Clutch wear can be accelerated with aggressive driving. Carbon buildup in direct-injection engines can occur.
        
     
 
    
    
    
        
            Car And Driver 10Best:
        
        
            The Mazda3, especially the Mazdaspeed variant, was frequently recognized by automotive publications like Car and Driver for its performance and handling, often appearing on '10Best' lists in previous generations, setting a high bar for this second generation.
        
     
    
    
        
            Consumer Reports Reliability:
        
        
            Mazda generally scores well in reliability ratings, and the Mazda3 is typically considered to be above average to average.