🔧 Altima - Engine Air Filter Replacement

The engine air filter keeps dirt and dust out of your Altima’s 2.5L engine. Replacing it helps maintain fuel economy, throttle response, and engine protection.

Difficulty Level: Beginner | Estimated Time: 10-15 minutes

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⚠️ Safety & Precautions

• ⚠️ Let the engine cool before working near the air intake box.
• ⚠️ Keep loose clothing, hair, and tools away from the engine bay.
• ⚠️ Do not run the engine with the air filter removed.
• ⚠️ Battery disconnect is not required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Shop towel
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine air filter - Qty: 1

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📋 Before You Begin

• Park your Altima on level ground.
• Shift to Park and set the parking brake.
• Turn the ignition off and remove the key or keep the key fob away from the vehicle.
• Open the hood and make sure it is safely supported.
• The air filter sits inside the black plastic air filter housing on the driver-side/front area of the engine bay.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the Hood

• Pull the hood release handle inside the cabin near the driver-side lower dash.
• Go to the front of the car, release the hood safety latch, and lift the hood.
• Use the hood prop rod if equipped, or make sure the hood struts hold the hood securely.
• Put on safety glasses and nitrile gloves.

Step 2: Locate the Air Filter Housing

• Use a flashlight to find the rectangular black plastic air filter housing.
• The housing connects to a large black intake tube that runs toward the engine.
• The air filter housing is the box that holds the replaceable filter element.

Step 3: Release the Air Filter Housing Clips

• Use your hands to unclip the metal spring clips on the air filter housing cover.
• A spring clip is a small metal latch that holds the plastic cover closed.
• Move each clip fully away from the cover so the cover can open.
• Do not bend the clips.

Step 4: Open the Housing Cover

• Use both hands to carefully lift and pull the air filter housing cover just enough to access the filter.
• Do not pull hard on the attached intake tube or wiring nearby.
• If dirt is sitting around the housing opening, wipe it away with a shop towel before removing the filter.

Step 5: Remove the Old Engine Air Filter

• Use your hands to slide the old engine air filter out of the housing.
• Pay attention to the filter’s direction before removing it completely.
• Check the bottom of the air box for leaves, sand, or debris.
• Use a shop towel to gently remove loose debris from the air box.
• Do not push dirt into the intake tube.

Step 6: Install the New Engine Air Filter

• Use your hands to place the new engine air filter into the housing.
• Make sure the rubber sealing edge sits flat all the way around.
• The filter must not be folded, crushed, or tilted.
• A flat seal keeps dust out.

Step 7: Close the Air Filter Housing

• Use both hands to align the housing cover with the lower air box.
• Make sure the cover tabs are seated correctly before closing the clips.
• Snap the spring clips back into place by hand.
• No torque specification is used because this housing is secured by hand clips, not bolts.

Step 8: Final Visual Check

• Use a flashlight to inspect the housing seam.
• Confirm the cover is fully closed and the clips are locked.
• Make sure no tools or towels are left in the engine bay.
• Close the hood firmly.

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✅ After Repair

• Start the engine and let it idle for about 30 seconds.
• Listen for unusual air hissing from the air filter housing area.
• If you hear a loud air leak, shut the engine off and recheck that the filter and cover are seated correctly.
• No scan tool reset, programming, or battery registration is required.

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💰 DIY vs Shop Cost

Shop Cost: $45-$90 USD equivalent / ₹3,700-₹7,500 approx. (parts + labor)

DIY Cost: $15-$35 USD equivalent / ₹1,250-₹2,900 approx. (parts only)

You Save: $30-$55 USD equivalent / ₹2,500-₹4,600 approx. by doing it yourself!

Shop labor rates vary by region. This repair takes a shop approximately 0.2-0.3 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.