Cabin Air Filter For 2017 Nissan Altima

Let's talk about the cabin air filter in your 2017 Nissan Altima. It's a seemingly small component, but it plays a crucial role in the air quality inside your car and the overall performance of your HVAC (Heating, Ventilation, and Air Conditioning) system. While often overlooked, regular replacement of this filter can make a significant difference in your driving experience.

Why is the Cabin Air Filter Important?

The cabin air filter, sometimes referred to as a pollen filter or an interior air filter, is designed to clean the air that enters the passenger compartment of your vehicle through the HVAC system. It traps airborne particles such as:

Dust and pollen: Reducing allergens that can cause discomfort, especially for passengers with sensitivities.
Dirt and debris: Preventing them from circulating inside the car and settling on surfaces.
Smog and pollutants: Minimizing the inhalation of harmful substances from the environment.
Leaves and insects: Stopping larger objects from entering and potentially damaging the HVAC system's blower motor.

A clogged cabin air filter restricts airflow, which can lead to several problems. Think of it like trying to breathe through a thick mask – it takes more effort. This restricted airflow can manifest as:

Reduced HVAC performance: Weaker airflow from the vents, making it harder to heat or cool the cabin efficiently.
Increased strain on the blower motor: The motor has to work harder to push air through the restricted filter, potentially shortening its lifespan. This is a critical and often expensive repair.
Unpleasant odors: A dirty filter can harbor mold, mildew, and bacteria, leading to musty or stale smells inside the car.
Fogging windows: Reduced airflow can make it more difficult to defog the windows, especially in humid conditions.

Ignoring your cabin air filter can eventually contribute to more significant issues with your HVAC system. Preventative maintenance, like replacing this filter, will save you money in the long run.

Locating the Cabin Air Filter in a 2017 Altima

Fortunately, accessing the cabin air filter in a 2017 Nissan Altima is a relatively straightforward procedure. It's located behind the glove box, making it easily accessible for DIY replacement. Here's the step-by-step process:

Step 1: Prepare the Area

Clear out the glove box. This will prevent items from falling out and getting lost during the process. It also provides you with ample workspace.

Step 2: Open the Glove Box

Open the glove box completely. You'll notice two dampening arms or a single dampening cable attached to the sides of the glove box. These control the speed at which the glove box opens. You will need to detach these.

Step 3: Detach the Dampening Mechanism

This is the most delicate part. The exact method may vary slightly depending on the specific configuration of your Altima. However, the principle is generally the same.

Generally, there is a small plastic clip or lever on the side of the dampening mechanism (often the right side). Gently push or pry this clip with a small flathead screwdriver or your fingers while simultaneously gently pushing the dampening arm inwards or outwards (depending on the mechanism design). The goal is to disengage the arm from its anchor point. Do not force it, as you could break the plastic components. Observe carefully how it's attached before attempting to detach it.

Repeat this procedure for the other dampening arm if present. Once both arms are detached, the glove box should swing down further than usual, revealing the cabin air filter housing behind it.

Step 4: Access the Filter Housing

You should now see a rectangular plastic cover – this is the access door to the cabin air filter housing. There are typically two clips or tabs that secure this cover in place.

Squeeze or depress these tabs (they often require a gentle inward pressure) and pull the cover straight out. It should come off relatively easily. If it feels stuck, double-check that you've fully disengaged the retaining tabs.

Step 5: Remove the Old Filter

With the cover removed, you'll see the cabin air filter itself. Note the direction of the airflow arrow printed on the side of the old filter. This is critical for installing the new filter correctly. The airflow arrow indicates the direction of air flowing through the filter. Usually, it points downwards.

Carefully slide the old filter out of the housing. It may be quite dirty, so be prepared with a trash bag or container to dispose of it properly. Avoid shaking the filter inside the car, as this will release trapped dust and debris into the cabin.

Step 6: Inspect the Housing

Before installing the new filter, take a moment to inspect the inside of the filter housing. Use a vacuum cleaner or a damp cloth to remove any loose debris, leaves, or other contaminants that may have accumulated inside.

Step 7: Install the New Filter

Take your new cabin air filter and ensure you're installing it with the airflow arrow pointing in the same direction as the old filter. Gently slide the new filter into the housing until it's fully seated.

It's essential to use the correct type and size of filter for your 2017 Altima. Consult your owner's manual or a reputable auto parts store to ensure you're purchasing the right replacement.

Step 8: Reinstall the Access Cover

Replace the plastic access cover by aligning it with the housing and pressing it into place until the retaining clips snap securely. Make sure it's firmly attached to prevent air leaks.

Step 9: Reattach the Dampening Mechanism

Reattach the glove box dampening arms. This can be slightly tricky, so be patient. Align the arms with their anchor points and gently push them into place until they click or snap securely. This may require some finesse.

Step 10: Close the Glove Box

Close the glove box and verify that it opens and closes smoothly and correctly. Ensure that the dampening mechanism is functioning properly.

Choosing the Right Cabin Air Filter

There are several types of cabin air filters available for your 2017 Nissan Altima, each with its own advantages:

Particulate filters: These are the most basic type, designed to trap dust, pollen, and other large particles.
Activated carbon filters: These filters contain a layer of activated carbon, which absorbs odors and helps to remove harmful gases and pollutants from the air. They are a good choice if you live in an area with heavy traffic or air pollution.
HEPA filters: High-Efficiency Particulate Air (HEPA) filters offer the highest level of filtration, capturing even the smallest particles, including bacteria and viruses. While more expensive, they can be beneficial for individuals with allergies or respiratory sensitivities.

When selecting a cabin air filter, consider your driving conditions, your budget, and any specific health concerns. A good quality activated carbon filter is generally a good compromise between cost and performance.

How Often Should You Replace the Cabin Air Filter?

Nissan recommends replacing the cabin air filter in your 2017 Altima every 12,000 to 15,000 miles or once a year, whichever comes first. However, this is just a general guideline. If you drive in dusty or polluted environments, you may need to replace it more frequently.

A visual inspection can also help determine when it's time for a replacement. If the filter appears visibly dirty, discolored, or clogged, it's a good idea to replace it, regardless of the mileage. Pro-tip: Make it a habit to check your cabin air filter every time you change your engine oil. This will help you stay on top of its condition and prevent any performance issues.

Final Thoughts

Replacing the cabin air filter in your 2017 Nissan Altima is a simple and inexpensive maintenance task that can significantly improve the air quality inside your car and the performance of your HVAC system. By following these steps and choosing the right filter, you can breathe easier and enjoy a more comfortable driving experience. Don't neglect this important component – your lungs (and your car) will thank you!