Step 2: Using the flathead screwdriver, loosen the air hose clamps (2) to remove it from the assembly.
Step 3: Disengage the retaining clips (2) that hold the air box door to the assembly. You can now open the door.
Step 4: Remove the vehicle's air filter.
Step 5: Slide the new air filter into position.
Step 6: Re-engage the retaining clips (2) to secure the air box door to the assembly.
Step 7: Reattach the air hose at each end by tightening the flathead clamps (2).
NOTE: We recommend attaching the air flow sensor (attached to the hose) first. There is a guiding tab on the sensor to ensure proper placement. Once the sensor is in place, attach the hose at both ends.
These Part Change / Installation Instructions Apply to
05 2005, 04 2004, 03 2003, 02 2002, 01 2001, 00 2000, 99 1999, 98 1998, 97 1997 Buick Regal, Century Air Filter Replacement Instructions
