Mazda 3 Service Manual: General

HVAC

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Air Filter Inspection

1. Verify that there is no damage, excessive dirt, or abnormal odor on the air filter. If there is any malfunction, replace the air filter. NOTE: The air filter cannot be reuse ...

Other materials:

Relay Inspection [Mzr 2.0, Mzr 2.5, Mzr 2.3 Disi Turbo]
Relay Type Connector type Part name Type A Front fog light relay Headlight relay (HI) Headlight relay (LO) Horn relay TNS relay A/C relay AT ma ...

Intake Air System Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING: A hot engine and intake air system can cause severe burns. Turn off the engine and wait until they are cool before removing the intake air system. Fuel is very flammable liquid. If fuel spills or leaks from the pressurized fuel system, it will cause serious injury or d ...

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 helping to prevent vehicle theft. If you have a problem with the immobilizer system or the key, co ...