How To Change Cabin Air Filter In Nissan Altima

Changing your cabin air filter in a Nissan Altima is a simple maintenance task that can significantly improve the air quality inside your car and the performance of your HVAC system. This guide provides a step-by-step walkthrough, along with helpful tips and considerations for choosing the right filter.

Why Changing Your Cabin Air Filter Matters

The cabin air filter plays a crucial role in maintaining a healthy and comfortable driving environment. Here’s why regular replacement is essential:

Improved Air Quality: The primary function of the cabin air filter is to trap dust, pollen, mold spores, and other airborne particles that enter your Altima's ventilation system. Over time, these particles accumulate, reducing the filter's effectiveness and potentially releasing allergens and irritants into the cabin. This can be especially problematic for individuals with allergies or respiratory sensitivities.
Enhanced HVAC Performance: A clogged cabin air filter restricts airflow, forcing your car's heating and cooling system to work harder. This can lead to reduced efficiency, weaker airflow from the vents, and potentially even damage to the blower motor over the long term. Replacing the filter ensures optimal airflow and efficient HVAC operation.
Odor Reduction: Some cabin air filters, particularly those with activated carbon, can also help to neutralize unpleasant odors, such as exhaust fumes, smoke, and musty smells. This contributes to a fresher and more pleasant driving experience.
Preventing System Damage: A severely clogged filter can cause strain on the entire HVAC system. Replacing it regularly helps prevent premature wear and tear on expensive components, potentially saving you money on repairs in the future.

How to Change the Cabin Air Filter in Your Nissan Altima: A Step-by-Step Guide

The location of the cabin air filter in a Nissan Altima varies slightly depending on the model year. However, it is typically located behind the glove compartment. Here's a general guide:

Tools You'll Need:

New cabin air filter (correct model for your Altima)
Phillips head screwdriver (may be required, depending on model year)
Optional: Vacuum cleaner with hose attachment
Optional: Gloves

Step-by-Step Instructions:

Prepare the Vehicle: Turn off the engine and ensure the parking brake is engaged. Clear the front passenger seat and floor area to provide ample workspace.
Locate the Glove Compartment: The cabin air filter housing is typically located behind the glove compartment.
Empty the Glove Compartment: Remove all items from the glove compartment to make it lighter and easier to handle.
Release the Glove Compartment: There are several ways to release the glove compartment, depending on the year of your Altima:
- Method 1 (Most Common): Squeeze the sides of the glove compartment inward. You should feel tabs release, allowing the glove compartment to swing down further than usual. Some models may have a damper arm on the side that needs to be disconnected. Gently detach the damper arm, if present.
- Method 2: Some models may have clips or latches that need to be disengaged before the glove compartment can be lowered. Carefully inspect the glove compartment for any visible clips and release them.
- Method 3: Some Altimas have a stop pin on either side of the glove box that needs to be turned 90 degrees to release.
Locate the Cabin Air Filter Housing: Once the glove compartment is fully lowered, you will see a rectangular plastic cover. This is the cabin air filter housing cover.
Remove the Housing Cover: The cover is typically held in place by clips or screws.
- Clips: Gently press the clips to release the cover.
- Screws: Use a Phillips head screwdriver to remove the screws.
Carefully remove the cover.
Remove the Old Cabin Air Filter: With the cover removed, you will see the old cabin air filter. Note the direction of the airflow arrow on the filter. This is important when installing the new filter. Carefully slide the old filter out of the housing. It may be quite dirty.
Clean the Housing (Optional): Use a vacuum cleaner with a hose attachment to remove any debris, leaves, or dust from the cabin air filter housing. This helps to ensure a clean environment for the new filter.
Install the New Cabin Air Filter: Insert the new cabin air filter into the housing, ensuring that the airflow arrow on the filter is pointing in the same direction as the arrow on the old filter or as indicated on the housing.
Reinstall the Housing Cover: Replace the cabin air filter housing cover, securing it with the clips or screws you removed earlier. Make sure the cover is properly aligned and securely fastened.
Reassemble the Glove Compartment: Lift the glove compartment back into its original position and reattach any damper arms or clips. Ensure the glove compartment closes and latches properly.
Test the System: Start the engine and turn on the HVAC system. Check the airflow from the vents and verify that the heating and cooling functions are working properly.

How to Choose the Right Cabin Air Filter for Your Altima

Selecting the correct cabin air filter for your Nissan Altima is crucial for ensuring proper fit and performance. Here's what to consider:

Vehicle Year and Model: Always check your vehicle's year, make, and model when purchasing a cabin air filter. Auto parts stores and online retailers typically have compatibility charts to help you find the correct filter for your Altima.
Filter Type: There are several types of cabin air filters available:
- Particulate Filters: These are the most basic type of filter and primarily trap dust, pollen, and other airborne particles.
- Activated Carbon Filters: These filters contain activated carbon, which helps to neutralize odors and absorb harmful gases, such as exhaust fumes. They offer superior air purification compared to particulate filters.
- HEPA Filters: High-Efficiency Particulate Air (HEPA) filters are the most effective at capturing small particles, including allergens, bacteria, and viruses. While more expensive, they provide the best air quality.
- Electrostatic Filters: These filters use an electrostatic charge to attract and trap particles. They are generally reusable and washable.
Brand Reputation: Choose reputable brands known for producing high-quality cabin air filters. Popular brands include Fram, Bosch, Purolator, and Wix.
Filter Dimensions: Ensure that the filter dimensions match the specifications for your Altima. The filter should fit snugly within the housing without any gaps.
Price: Cabin air filter prices can vary depending on the type and brand. Consider your budget and desired level of air purification when making your selection. Generally, spending a little more on a high-quality filter can provide better performance and longevity.

Real-World Owner Experiences

Many Nissan Altima owners have shared their experiences with changing their cabin air filters. Here are a few common takeaways:

Improved Air Quality: Owners often report a noticeable improvement in air quality after replacing a dirty cabin air filter. They experience less sneezing, coughing, and other allergy symptoms while driving.
Stronger Airflow: A new cabin air filter can significantly improve airflow from the vents, especially in older vehicles with clogged filters. This results in more efficient heating and cooling.
Easier Than Expected: Most owners find the cabin air filter replacement process to be relatively straightforward and easy to complete themselves, saving them money on labor costs at a mechanic.
Regular Maintenance is Key: Owners emphasize the importance of regular cabin air filter replacement to maintain optimal air quality and HVAC performance. They recommend checking the filter at least once a year and replacing it as needed.
Activated Carbon Filters Worth the Investment: Many owners who have switched to activated carbon filters report a significant reduction in odors and a fresher cabin environment. They find the extra cost to be worthwhile.

Frequently Asked Questions (FAQs)

Here are some frequently asked questions about changing the cabin air filter in a Nissan Altima:

How often should I change my cabin air filter?
Most manufacturers recommend replacing the cabin air filter every 12,000 to 15,000 miles, or once a year. However, if you live in an area with heavy pollution or frequently drive on dusty roads, you may need to replace it more often.
How do I know if my cabin air filter needs to be replaced?
Signs that your cabin air filter needs replacement include reduced airflow from the vents, a musty or unpleasant odor coming from the vents, and increased allergy symptoms while driving.
Can I wash and reuse my cabin air filter?
While some electrostatic filters are designed to be washed and reused, it is generally not recommended to wash and reuse disposable cabin air filters. Washing can damage the filter material and reduce its effectiveness. It's best to replace the filter with a new one.
Where can I buy a new cabin air filter for my Nissan Altima?
You can purchase a new cabin air filter at most auto parts stores, online retailers, and Nissan dealerships. Be sure to specify your vehicle's year, make, and model to ensure you get the correct filter.
Is it difficult to change the cabin air filter myself?
Changing the cabin air filter is generally a simple DIY task that can be completed in about 15-30 minutes. The process is similar for most Nissan Altima models, and online tutorials and videos are readily available to guide you.
Can a dirty cabin air filter affect my gas mileage?
While the effect is usually minimal, a severely clogged cabin air filter can slightly reduce gas mileage by forcing the HVAC system to work harder, thus consuming more energy.
Will using a generic cabin air filter void my warranty?
Using a generic cabin air filter that meets the specifications for your vehicle should not void your warranty. However, it's always a good idea to check your warranty documentation or consult with your Nissan dealer to confirm.

By following these steps and considering these factors, you can easily change the cabin air filter in your Nissan Altima and enjoy cleaner, fresher air inside your vehicle.