2003 Buick Century Owner's Manual - Page 135

For information on how often to change the passenger compartment air filter, see Scheduled Maintenance on page 6-5. To change the passenger compartment air filter, use the following steps: 1. Turn off the ignition when the windshield wipers are in the up position. 2. Raise the hood. 3. Disconnect the windshield washer pump hose from the fender rail and air inlet grille. 4. Remove the hood weatherstrip from the passenger's side of the vehicle (peel back halfway to center). 5. Remove the three air inlet grille retainers. 7. Remove the passenger compartment air filter. 8. Then replace the old air filter with the new one. For the type of filter to use, see Normal Maintenance Replacement Parts on page 5-95. 9. Reinstall the air inlet grille. 10. Reinstall the air inlet grille retainers. 11. Reattach the hood weatherstip. 12. Reconnect the windshield washer pump hose to the fender rail and air inlet grille. 13. Close the hood. 6. Remove the air inlet grille. 14. Return the windshield wipers to the park position. 3-26