Segment:
        
        
            Compact/Sport Compact
        
     
    
        
            Target Audience:
        
        
            Enthusiast drivers, budget-conscious buyers seeking sportiness and reliability
        
     
    
    
        
            Key Competitors:
        
        
            Honda Civic Si, Volkswagen GTI, Subaru Impreza WRX, Mitsubishi Lancer Ralliart/Evolution
        
     
    
        
            Distinguishing Features:
        
        
            Engaging driving dynamics, distinctive styling, available turbocharged performance (MazdaSpeed 3)
        
     
    
    
        
            Mazda3 Features:
        
        
            Balanced handling, comfortable ride, refined interior for its class, good fuel economy
        
     
    
        
            Mazdaspeed3 Features:
        
        
            Turbocharged 2.3L DISI engine, limited-slip differential, aggressive styling, significantly enhanced performance
        
     
 
    
    
    
        
            Engine Mechanical:
        
        
            Cylinder head, block, pistons, crankshaft, camshafts, timing system, lubrication, cooling system
        
     
    
        
            Engine Performance Controls:
        
        
            Fuel injection, ignition system, emissions control, engine management systems (ECU), sensors, actuators
        
     
    
        
            Transmission Manual:
        
        
            Clutch, gearbox assembly, shift mechanism, final drive, fluid specifications
        
     
    
        
            Transmission Automatic:
        
        
            Automatic transaxle assembly, valve body, torque converter, control systems, fluid specifications
        
     
    
        
            Drivetrain:
        
        
            Driveshafts, CV joints, differentials, AWD system (if applicable)
        
     
    
        
            Brakes:
        
        
            Hydraulic system, calipers, rotors, pads, ABS, EBD, parking brake, bleeding procedures
        
     
    
        
            Suspension:
        
        
            Front and rear suspension components, struts, shocks, control arms, bushings, springs, alignment specifications
        
     
    
        
            Steering:
        
        
            Power steering system (hydraulic or electric), steering rack, tie rods, column, alignment
        
     
    
        
            Electrical System:
        
        
            Battery, charging system, starter, lighting (headlights, taillights, interior), horn, wipers, washers
        
     
    
        
            Body And Chassis:
        
        
            Body panels, doors, hood, trunk, glass, seals, structural components, anti-corrosion protection
        
     
    
        
            HVAC:
        
        
            Air conditioning, heating, ventilation, blower motor, evaporator, condenser, refrigerant charging
        
     
    
        
            Interior Trim:
        
        
            Dashboard, seats, carpets, door panels, headliner, trim pieces, airbags
        
     
    
        
            Safety Systems:
        
        
            Airbag system, seatbelt pre-tensioners, SRS module, diagnostics
        
     
    
        
            Diagnostic Troubleshooting:
        
        
            OBD-II codes, diagnostic procedures, wiring diagrams, component testing
        
     
    
    
        
            Routine Maintenance:
        
        
            Oil changes, filter replacements, fluid checks and top-offs, tire rotation, brake inspections
        
     
    
        
            Major Repairs:
        
        
            Engine overhaul, transmission rebuild, suspension replacement, brake system repair
        
     
    
        
            Component Replacement:
        
        
            Alternator, starter, water pump, fuel pump, sensors, actuators, body panels
        
     
    
        
            Troubleshooting Guides:
        
        
            System-specific symptom analysis and repair pathways
        
     
    
        
            Wiring Diagrams:
        
        
            Detailed electrical schematics for all vehicle systems
        
     
    
        
            Specifications Data:
        
        
            Torque values, clearances, fluid capacities, alignment angles
        
     
    
        
            Special Tools:
        
        
            Identification and usage of manufacturer-specific or specialized tools required for repairs
        
     
    
    
        
            Depth Of Coverage:
        
        
            Comprehensive, from basic maintenance to in-depth mechanical and electrical diagnostics and repair
        
     
    
        
            Diagnostic Capabilities:
        
        
            Advanced troubleshooting for engine, transmission, ABS, SRS, and other electronic modules
        
     
    
        
            Rebuild Procedures:
        
        
            Detailed instructions for engine and transmission disassembly, inspection, and reassembly
        
     
 
    
    
    
        
            NHTSA Front Impact Driver:
        
        
            5-Star (2007 Mazda 3)
        
     
    
        
            NHTSA Front Impact Passenger:
        
        
            5-Star (2007 Mazda 3)
        
     
    
        
            NHTSA Side Impact Front Driver:
        
        
            5-Star (2007 Mazda 3)
        
     
    
        
            NHTSA Side Impact Front Passenger:
        
        
            5-Star (2007 Mazda 3)
        
     
    
        
            NHTSA Side Impact Rear Driver:
        
        
            5-Star (2007 Mazda 3)
        
     
    
        
            NHTSA Side Impact Rear Passenger:
        
        
            5-Star (2007 Mazda 3)
        
     
    
        
            IIHS Front Offset Good:
        
        
            Good (2007 Mazda 3)
        
     
    
        
            IIHS Side Impact Good:
        
        
            Good (2007 Mazda 3)
        
     
    
        
            IIHS Rear Impact Good:
        
        
            Good (2007 Mazda 3)
        
     
    
    
        
            Braking System:
        
        
            Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD)
        
     
    
        
            Traction Control:
        
        
            Traction Control System (TCS) - standard on some trims and MazdaSpeed 3
        
     
    
        
            Stability Control:
        
        
            Dynamic Stability Control (DSC) - optional or standard on higher trims/MazdaSpeed 3
        
     
    
    
        
            Airbags:
        
        
            Front dual-stage airbags, front side-impact airbags, side-curtain airbags (standard on some, optional on others)
        
     
    
        
            Seatbelts:
        
        
            3-point front and rear seatbelts with pre-tensioners and load limiters
        
     
    
        
            Child Safety Anchors:
        
        
            LATCH (Lower Anchors and Tethers for Children) system
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 7,500 miles (12,000 km) or 6 months, whichever comes first (check owner's manual for exact details based on driving conditions)
        
     
    
        
            Air Filter Replacement:
        
        
            Typically every 30,000 miles (48,000 km) or as needed based on inspection
        
     
    
        
            Spark Plug Replacement:
        
        
            Platinum-tipped plugs: approx. 100,000 miles (160,000 km); Iridium-tipped plugs: approx. 100,000 miles (160,000 km) (check specific engine and plug type)
        
     
    
        
            Coolant Replacement:
        
        
            Initial change at 100,000 miles (160,000 km), then every 50,000 miles (80,000 km) thereafter
        
     
    
        
            Transmission Fluid Change:
        
        
            Manual: Inspect periodically, replace as needed ( Mazda recommends checking); Automatic: Every 60,000 miles (96,000 km) or under severe conditions
        
     
    
    
        
            Engine Oil Type Mazda3:
        
        
            SAE 5W-20 or 5W-30 API SM (check owner's manual for exact specification and capacity)
        
     
    
        
            Engine Oil Type Mazdaspeed3:
        
        
            SAE 5W-30 API SM or SN (check owner's manual for exact specification and capacity, often recommended synthetic)
        
     
    
        
            Coolant Type:
        
        
            Mazda Long Life Coolant (FL22) or equivalent G12/G12+ based coolant (ethylene glycol/silicate-free)
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 3 or DOT 4 brake fluid
        
     
    
        
            Transmission Fluid Manual:
        
        
            API GL-4 SAE 75W-90 gear oil
        
     
    
        
            Transmission Fluid Automatic:
        
        
            Mazda ATF JWS 3309 or equivalent (e.g., Toyota Type T-IV)
        
     
    
    
        
            Clutch Wear:
        
        
            Accelerated clutch wear in some MazdaSpeed 3 models due to aggressive driving and torque output
        
     
    
        
            Engine Carbon Buildup:
        
        
            Potential for carbon buildup on intake valves, especially in direct-injection engines (MazdaSpeed 3), requiring periodic cleaning
        
     
    
        
            Rust Corrosion:
        
        
            Rust issues can affect wheel wells, rocker panels, and subframes, particularly in areas with road salt
        
     
    
        
            Timing Chain Tensioner:
        
        
            Some reports of timing chain tensioner wear or failure on older MZR engines, though less common in this generation
        
     
    
        
            Power Steering Pump:
        
        
            Potential for power steering pump leaks or failure on hydraulic systems
        
     
    
        
            Engine Mounts:
        
        
            Wear or failure of engine mounts can lead to increased vibration and noise