Buick 2008 Allure Owner's Manual page 155

To change the passenger compartment air filter, use the
following steps:
1. Turn the ignition to ACC/ACCESSORY and turn the
windshield wipers on.
2. Turn the ignition to LOCK/OFF when the windshield
wipers are in the upright position.
3. Raise the hood.
4. Disconnect the windshield washer pump hose from
the fender rail and air inlet grille.
5. Peel back the hood weather-strip from the
passenger's side of the vehicle halfway to the
center of the hood.
6. Remove the three air inlet grille retainers.
7. Remove the air inlet grille.
8. Remove the water deflector panel.
9. Remove the old air filter.
10. Install a new passenger compartment air filter.
See Maintenance Replacement Parts on page 6-13
for the type of filter to use. Make sure it slides
under the compartment retainers.
11. Reverse Steps 1 through 8.
For best climate control performance, re-installation
of a clean air filter is required.
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