2004 Buick Park Avenue cabin filter

Under LF Of Dash

REMOVAL PROCEDURE 1.Remove the left sound insulator panel. 2.Remove the filter access cover (1). Push down, then pull out. 3.Remove the tape on the first filter. 4.Remove the first filter by pulling the filter tab. 5.Remove the tape on the second filter. 6.Remove the second filter by pulling the filter tab. 7.Remove the third filter by pulling the filter tab. INSTALLATION PROCEDURE IMPORTANT: Lubricate the new filter guides with a spray silicon for ease in installation. Keeping the filters as straight as possible when installing will aid in installation. 1.Install the first filter into the HVAC module assembly. 2.Use the tab or a long screwdriver to raise the filter, so that the leading edge catches on the holding rib inside of the filter case. 3.Install the second filter in the tab of the first filter. 4.Slide the second filter into the remaining channels of the first filter. 5.Raise the filters, so that the leading edge catches on the holding rib inside of the filter case. 6.Install the third filter in the tab of the second filter. 7.Slide the third filter into the remaining channels of the second filter. 8.Fold the second filter tab down and the third filter tab up over the second. 9.Install the filter access cover (1). 10.Install the left sound insulator panel.