🔧 Altima - Engine Air Filter Replacement

The engine air filter keeps dust and debris from entering your Altima’s engine. Replacement involves opening the air-cleaner housing, exchanging the filter, and making sure the housing seals correctly.

Difficulty Level: Beginner | Estimated Time: 10-20 minutes

---

⚠️ Safety & Precautions

• ⚠️ Turn the engine off and allow it to cool before working under the hood.
• 🧤 Wear gloves and safety glasses because loose dirt may be present.
• 🔑 Keep the ignition off so the engine cannot be started with the air-cleaner housing open.
• 🔋 Battery disconnection is not required.

---

🔧 Required Tools

You'll need the following tools for this repair:

• LED flashlight
• Soft-bristle detailing brush
• Shop vacuum with crevice attachment
• Nitrile mechanic gloves
• Safety glasses

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine air filter - Qty: 1

---

📋 Before You Begin

• 🅿️ Park your Altima on level ground, apply the parking brake, and place the selector in Park.
• 🌡️ Switch off the engine and wait until the engine compartment is cool.
• 📦 Remove the new filter from its packaging without bending its sealing edge.
• 📱 No infotainment setting, scan tool, programming, or battery reset is required.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open and Secure the Hood

• Use the interior hood-release handle below the driver-side dashboard.
• Release the secondary latch beneath the front edge of the hood.
• Lift the hood and secure it fully with the factory support rod.
• Use the LED flashlight to locate the black plastic engine air-cleaner housing.

Step 2: Clean Around the Housing

• Use the soft-bristle detailing brush to loosen dirt around the housing seam.
• Use the shop vacuum with crevice attachment to remove that dirt before opening the housing.
• Do not allow debris to fall into the clean-air outlet leading toward the engine.
• Clean first so dirt stays outside the engine.

Step 3: Release the Air-Cleaner Cover

• Use your gloved fingers to release the metal retaining clips on the air-cleaner housing.
• A retaining clip is a spring-loaded latch that holds the housing cover closed.
• Move the cover only far enough to disengage its locating tabs; do not pull on the attached intake duct or wiring.
• No fastener torque applies because the housing uses hand-operated retaining clips.

Step 4: Remove the Old Filter

• Use your gloved fingers to lift the air-cleaner cover enough to access the filter.
• Note the filter’s installed direction and sealing-edge position.
• Use your gloved fingers to lift the old engine air filter straight out.
• Do not start the engine while the filter is removed.

Step 5: Clean and Inspect the Housing

• Use the LED flashlight to inspect the lower housing for leaves, sand, or other debris.
• Use the shop vacuum with crevice attachment to clean the lower housing.
• Keep the vacuum attachment away from the clean-air outlet and airflow-sensor area.
• Use the soft-bristle detailing brush only on the empty lower housing.
• Do not use compressed air because it can push contamination toward the engine.

Step 6: Install the New Filter

• Use your gloved hands to place the new engine air filter into the lower housing in the same direction as the old filter.
• Press gently around the filter’s sealing edge and confirm it lies flat inside its channel.
• Do not crush, fold, oil, or trim the filter.
• A flat seal prevents unfiltered air leaks.

Step 7: Close the Housing

• Use your gloved fingers to engage the cover’s locating tabs with the lower housing.
• Lower the cover while checking that the filter remains seated and no wiring is trapped.
• Use your gloved fingers to fasten every retaining clip completely.
• Inspect the entire seam with the LED flashlight; the cover must sit evenly with no visible filter edge.
• No fastener torque applies because the retaining clips lock by hand.

Step 8: Close the Hood

• Use your gloved hands to return the hood support rod to its storage clip.
• Lower the hood and release it from approximately 20-30 cm above the latch.
• Use your hands to lift gently at the front edge and verify the hood is latched.

---

✅ After Repair

• ✅ Start the engine and let it idle for approximately one minute.
• 👂 Listen for a loud hissing or whistling sound, which may indicate that the housing is not sealed.
• 🔍 If the engine runs poorly or a warning light appears, switch it off and recheck the filter position, housing tabs, clips, intake duct, and nearby electrical connectors.
• 📝 Record the date and odometer reading for your maintenance history.
• ♻️ Dispose of the old filter with normal dry waste unless local Panipat disposal rules require otherwise.

---

💰 DIY vs Shop Cost

Shop Cost: $45-$90 (parts + labor)

DIY Cost: $15-$35 (parts only)

You Save: $30-$55 by doing it yourself!

Local Panipat pricing may be higher because Altima parts may require import sourcing. Shop labor rates vary; this repair takes a shop approximately 0.2-0.3 hours.

---

🎯 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.