Mazda 3 Service Manual: Air Filter Inspection
1. Verify that there is no damage, excessive dirt, or abnormal odor on the air filter.
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If there is any malfunction, replace the air filter.
NOTE:
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The air filter cannot be reused by cleaning it with water or compressed air.
General
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Air Filter Inspection [Mzr 2.0, Mzr 2.5]
Except for Mexico
Airflow inspection
1. Remove the air filter..
2. Blow from port A and verify that there is airflow from port B.
If there is no airflow, replace the air filter..
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Other materials:
Center Cover Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the center panel..
3. Remove the upper clumn cover..
4. Remove the instrument cluster..
5. Pull the center cover in the direction of arrow (1) shown in the figure, then
remove the hooks.
6. Pull the center cover in the direction of ...
Positive Crankcase Ventilation (PCV) Valve Inspection [Mzr 2.0, Mzr 2.5]
Airflow Inspection
1. Disconnect the section (A) of the ventilation hose shown in the figure.
2. Start the engine and verify that vacuum is applied to the end of the disconnected
ventilation hose while the engine is idling.
NOTE:
Because it is difficult to directly inspect the PC ...
Parking Brake Switch Inspection
1. Remove the upper panel..
2. Disconnect the parking brake switch connector.
3. Verify that the continuity is as indicated in the table.
If not as indicated in the table, replace the parking brake lever.
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