The Nissan Sentra uses an in-cabin microfilter to restrict the entry of airborne dust and pollen into the passenger compartment. Nissan recommends replacing the cabin air filter on the Sentra every year or after each 15,000 miles driven. If the Sentra is often driven under extreme conditions, such as in dusty environments or around heavy traffic, the microfilter becomes dirty quickly. A clean cabin air filter helps the air in the air conditioning system stay cleaner and improves air flow through the vents. The location of the filter varies depending on the model year.
Locate the trim panel directly to the right of the accelerator pedal.
Pry the trim panel toward the accelerator pedal to remove it. Apply even pressure around the entire trim panel to avoid damaging it.
Pull down on the filter cover clip to unlock it. Remove the filter cover.
Pull the old filter straight out of the filter compartment to remove it.
Slide the new filter into the filter compartment.
Replace the filter cover. Press on the filter cover clip to snap it into place.
Replace the trim panel. Press on the panel around the edges to snap it into place.
