Mazda 3 Service Manual: Exhaust & Emissions

Valve Clearance Inspection [Mzr 2.0, Mzr 2.5]

1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the plug hole plate.. 4. Disconnect the wiring harness. 5. Remove the ignition coils.. 6. Remove the spark ...

Exhaust System Inspection [Mzr 2.0, Mzr 2.5]

1. Start the engine and inspect each exhaust system component for exhaust gas leakage. If there is leakage, repair or replace the appropriate component.. ...

Other materials:

License Plate Light Bulb Removal/Installation
1. Disconnect the negative battery cable.. 2. Insert a tape-wrapped fastener remover to the position shown in the figure, release the tabs, and remove the lens. 3. Remove the license plate light bulb. 4. Install in the reverse order of removal. ...

Heated Oxygen Sensor (HO2 S) Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING: A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system. 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Disconnect the HO2S connector. 4. Remove the HO2S u ...

Supplemental Restraint System Components
(With Front Passenger Occupant Classification System) (Without Front Passenger Occupant Classification System) Driver/Front passenger inflators and air bags Roll-over sensor * , crash sensors, and diagnostic module (SAS unit) Seat belt pretensioners Front air bag sensors Side c ...