Under the Hood

The 2.0-liter four-cylinder in the Mazda3 i has variable valve timing and develops 148 horsepower (144 hp in PZEV form). The Mazda3 s uses a 2.3-liter four-cylinder that pumps out 156 hp. A five-speed manual gearbox is standard, and a four-speed automatic transmission with a manual-shift provision is optional for the Mazda3 i. The 2.3-liter engine can mate with a five-speed automatic.

    See also:

    Immobilizer System
    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 ...

    Revised Six-Speed Manual Transmission
    This is particularly true when this engine is combined with the revised six-speed manual transmission. Its optimised synchronisation allows shifting gears even more quickly and smoothly than befor ...

    Limitations to SRS Air Bag
    In severe collisions or roll-overs such as those described previously in “SRS Air Bag Deployment Criteria”, the applicable SRS air bag equipment will deploy. However, in some accidents, the equi ...