Under the Hood

Mazda3 models now offer a choice of engines:  

  • Standard  148-horsepower, 2.0-liter four-cylinder engine that teams with a five-speed manual or five-speed automatic transmission
  • Optional 167-hp, 2.5-liter four-cylinder engine that works with a six-speed manual or five-speed automatic
  • Automatic transmission models include a clutchless-manual mode that lets the driver control gear changes by nudging the console gear selector up or down.
    See also:

    Emission Control System
    Your vehicle is equipped with an emission control system (the catalytic converter is part of this system) that enables your vehicle to comply with existing exhaust emissions requirements. WARNING ...

    Immobilizer System (without Advanced Key)
    The immobilizer system allows the engine to start only with a key the system recognizes. If someone attempts to start the engine with an unrecognized key, the engine will not start, thereby helpi ...

    Fuses
    Your vehicle's electrical system is protected by fuses. If any lights, accessories, or controls don't work, inspect the appropriate circuit protector. If a fuse has blown, the inside element will ...