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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-s ...

How the Air Bags Work
How the Front Air BagsWork When air bag crash sensors detect a frontal impact of greater than moderate force, an electrical current is sent to the inflators. Gases are produced to inflate the fro ...

Body Lubrication
All moving points of the body, such as door and hood hinges and locks, should be lubricated each time the engine oil is changed. Use a nonfreezing lubricant on locks during cold weather. Make sur ...