🔧 CX-5 - Engine Air Filter Replacement

Replacing the engine air filter on your CX-5 is a simple beginner-friendly job. The air filter cleans the air before it enters the turbocharged engine, and a dirty filter can reduce performance and fuel economy.

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

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⚠️ Safety & Precautions

• ⚠️ Let the engine cool before working near the air box and intake area.
• ⚠️ Keep dirt, leaves, and tools out of the lower air filter box. Anything that enters the intake can damage the engine.
• ⚠️ Do not start the engine while the air filter housing is open.
• ⚠️ 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
• Clean 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 CX-5 on level ground.
• 🅿️ Shift to Park and apply the parking brake.
• 🔥 Turn the engine off and let it cool for a few minutes.
• 💡 Open the hood and use a flashlight to locate the air filter box on the driver-side/front area of the engine bay.
• 📘 The air filter box is the black plastic housing connected to the large intake tube.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the Hood

• Use your hand to pull the hood release inside the cabin near the driver footwell.
• Use your hand to release the safety latch at the front of the hood.
• Raise the hood fully and make sure it is securely supported.

Step 2: Find the Engine Air Filter Box

• Use the flashlight to look for the black plastic air filter box.
• It is connected to a wide black intake tube that leads toward the engine.
• The top cover is held by metal spring clips. A spring clip is a reusable latch that snaps the plastic housing closed.

Step 3: Release the Air Box Clips

• Put on nitrile gloves and safety glasses.
• Use your fingers to unclip the metal retaining clips from the air filter box cover.
• Pull each clip outward gently until it releases from the cover.
• Do not bend the clips.

Step 4: Lift the Air Box Cover

• Use both hands to lift the air box cover just enough to access the filter.
• Do not force the intake tube or wiring nearby.
• If the cover feels tight, gently wiggle it upward by hand.

Step 5: Remove the Old Air Filter

• Use your hand to lift the old engine air filter straight out of the lower air box.
• Look at how the old filter sits before removing it. The new filter must sit the same way.
• Use the clean shop towel to wipe loose dust from the outer edge of the air box.
• Do not wipe dirt into the intake opening.

Step 6: Inspect the Air Box

• Use the flashlight to check the lower air box for leaves, insects, or debris.
• Use the clean shop towel to remove loose debris by hand.
• Make sure the lower air box is dry and clean before installing the new filter.

Step 7: Install the New Air Filter

• Place the new engine air filter into the lower air box by hand.
• Make sure the rubber sealing edge sits flat all the way around.
• The filter should not be folded, pinched, or sitting crooked.
• A flat seal prevents unfiltered air leaks.

Step 8: Refit the Air Box Cover

• Lower the air box cover by hand onto the new filter.
• Make sure the cover sits evenly on the housing.
• If the cover does not close easily, stop and reseat the filter.

Step 9: Reattach the Clips

• Use your fingers to snap the metal spring clips back over the air box cover.
• Make sure every clip is fully latched.
• No torque spec applies because these are hand-operated clips.

Step 10: Final Check

• Use the flashlight to confirm the air box cover is fully closed.
• Check that no tools or towels are left in the engine bay.
• Close the hood firmly.

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✅ After Repair

• ✅ Start your CX-5 and let it idle for 30 seconds.
• ✅ Listen for unusual hissing near the air box. A hiss can mean the cover is not seated correctly.
• ✅ If the engine runs rough, turn it off and recheck that the filter is seated flat and the cover clips are latched.
• ✅ No scan tool reset is required after replacing the engine air filter.

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💰 DIY vs Shop Cost

Shop Cost: $60-$120 USD equivalent, depending on parts and labor

DIY Cost: $20-$45 USD equivalent for the filter only

You Save: $40-$75 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.2-0.4 hours.

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🎯 Ready to get started?

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