Where the cabin air filter sits and what it does

The cabin air filter in a 2014 Nissan Altima is located behind the glove box on the passenger side. It traps dust, pollen, and other particles from outside air before that air reaches the cabin through your heating and air conditioning system. A clogged filter reduces airflow, makes your climate control work harder, and can leave the cabin smelling stale.

Nissan recommends checking the filter every 15,000 miles and replacing it every 30,000 miles, though that timeline shortens if you drive in dusty conditions or areas with heavy air pollution. You'll know it needs replacement when the air from your vents feels weak or the cabin smells musty even with fresh air mode on.

Key Takeaways

  • The cabin air filter sits behind the glove box on the passenger side and takes about 10 to 15 minutes to replace yourself.
  • A 2014 Altima uses Nissan part number 27891-3DA0A, though aftermarket filters from other manufacturers will fit if they match the same dimensions.
  • You need only a screwdriver and possibly a trim tool to remove the glove box and access the filter housing.
  • Replacing it yourself costs $15 to $40 for the filter, while a dealer or shop typically charges $60 to $150 in labor plus the filter cost.

What you need to buy and where to find it

The OEM Nissan cabin air filter for the 2014 Altima is part number 27891-3DA0A. You can order this directly from a Nissan dealership parts department, or search for it by part number at online retailers like RockAuto, Amazon, or eBay. Aftermarket brands like Mann Filter, Fram, and Bosch make compatible replacements that fit the same slot; check the product listing to confirm it's sized for a 2014 Altima before ordering.

Prices vary by brand and retailer. OEM Nissan filters typically run $25 to $40, while quality aftermarket options range from $15 to $30. Some retailers offer free shipping on orders over a certain amount, which can offset the cost difference between brands.

Steps to remove the old filter and install the new one

Start by opening the glove box on the passenger side and removing everything inside. Look for the two clips or screws on either side of the glove box frame—these hold it to the dashboard. Unscrew or unclip these fasteners, then gently pull the glove box toward you and down. It may take a small amount of force; if it feels stuck, check that you've released both fasteners.

Once the glove box is out of the way, you'll see the cabin air filter housing directly behind where the glove box was. The housing is a rectangular plastic box with a cover that either clips or screws on. If it clips, press the tabs on the sides to release it. If it screws, use a screwdriver to remove the fasteners. Slide the old filter out—note which direction the airflow arrow on the filter frame points, as the new filter must go in the same way.

Insert the new filter into the housing with the airflow arrow pointing in the same direction as the old one. Make sure the filter sits flat and fully into the slot. Close the housing cover and find it with clips or screws. Reinstall the glove box by sliding it back into place and tightening the fasteners on both sides. Open and close the glove box a few times to make sure it moves smoothly.

Tools and supplies you'll need

You need very little to complete this job. A Phillips-head screwdriver handles the glove box fasteners and the housing cover on most 2014 Altimas. Some models use clips instead of screws, in which case you may not need a screwdriver at all—just your hands. A plastic trim removal tool (sometimes called a panel popper) can help if the glove box is tight and you want to avoid scratching the dashboard, though a flat-head screwdriver or old credit card works in a pinch.

Have a small trash bag or box ready for the old filter, since it will be dusty. Wear a dust mask if you're sensitive to dust or pollen, especially if the old filter is very dirty.

When to replace it and how to know if it's clogged

Check your cabin air filter every 15,000 miles by removing the glove box and looking at the filter itself. If it's visibly caked with dust or debris, or if you can't see light through it when you hold it up to a lamp, it's time to replace it. You don't have to wait for the next scheduled interval if the filter is clearly dirty.

Signs that your filter needs replacement include weak airflow from the vents even with the fan on high, musty or stale smells in the cabin, or reduced cooling or heating performance. If you live in a dusty area, near construction, or in a region with high pollen counts, you may need to replace the filter more often than the standard 30,000-mile interval—sometimes as often as every 15,000 miles.

Comparing DIY replacement to dealer service

Replacing the cabin air filter yourself takes about 10 to 15 minutes once you have the part and costs only the price of the filter itself, typically $15 to $40. A Nissan dealership or independent shop will charge you $60 to $150 in labor on top of the filter cost, bringing the total to $85 to $190. The job is straightforward enough that most owners with basic tools can handle it without risk of damage.

The only reason to have a shop do it is if you're uncomfortable removing the glove box or if you want the work done during a scheduled service visit. There's no mechanical complexity or special knowledge required—the filter straightforward slides in and out of a plastic housing.

Frequently Asked Questions

Can I drive with a clogged cabin air filter?

Yes, a clogged filter won't damage the engine or transmission. It will reduce airflow through your vents, make your climate control less effective, and may allow dust into the cabin. It's not an emergency, but replacing it restores comfort and air quality.

What's the difference between cabin air filters and engine air filters?

The cabin air filter cleans air that enters the passenger compartment through the heating and air conditioning system. The engine air filter cleans air that goes into the engine for combustion. They're separate parts in different locations and have different replacement schedules.

Do I have to use a Nissan OEM filter or can I use any brand?

Any filter that matches the dimensions and fits the 2014 Altima housing will work. Aftermarket brands like Fram, Mann, and Bosch are widely available and cost less than OEM. Check the product listing to confirm it's compatible with your model year before ordering.

Which direction does the new filter go in?

The filter frame has an arrow printed on it showing the direction of airflow. This arrow must point toward the cabin (away from the outside air intake). Look at how the old filter was oriented and install the new one the same way.

What if I can't get the glove box out?

Make sure you've released both fasteners on the sides of the glove box frame—they're usually clips or screws. If it still feels stuck, check underneath for a third fastener you may have missed. Pull gently and steadily rather than yanking; the glove box should come free once all fasteners are released.