See also:

Engine Compartment Overview
Without turbocharger With turbocharger ...

Hood
WARNING. Always check that the hood is closed and securely locked: A hood that is not closed and securely locked is dangerous as it could fly open while the vehicle is moving and block the drive ...

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 Opt ...