1. Remove the air filter.
2. Inspect the air filter.
Note

Air filter removal/installation
A/c unit removal/installationMazda 6 Service Manual: Auto leveling control unit configuration
   1. Connect the SST (WDS or equivalent) to the DLC-2.
2. Input vehicle information following the directions on the screen.
3. Select Module programming.
4. Select Programmable module installation.
5. When performing configuration corresponding to each auto leveling control 
unit, select the fo ...
   
Mazda 6 Service Manual: Outside the United States/Canada
   Government regulations in the United States/Canada require that automobiles meet 
specific emission regulations and safety standards. Therefore, vehicles built for 
use in the United States/Canada may differ from those sold in other countries.
The differences may make it difficult or even impossi ...