🔧 Civic - Engine Air Filter Replacement

Your Civic’s engine air filter keeps dust and debris out of the engine. Replacing it helps fuel economy, throttle response, and protects the engine from wear.

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

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⚠️ Safety & Precautions

• ⚠️ Work with the engine OFF and cool to avoid burns.
• ⚠️ Keep fingers/tools away from belts and fans.
• ⚠️ Do not drop dirt into the air intake while the filter is out.
• ⚠️ Battery disconnect is not required for this job.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Flathead screwdriver
• 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 on level ground and set the parking brake.
• Open the hood and let the engine cool for 10 minutes if it was running.
• Have a clean shop towel ready so nothing falls into the intake.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Locate the air cleaner housing

• Use a flashlight to find the black plastic airbox (air cleaner housing). Airbox = the filter’s plastic box.
• It’s the box connected to the large intake tube going toward the engine.

Step 2: Unclip the airbox cover

• Use your hands to flip open the metal retaining clips around the airbox cover.
• If a clip is stubborn, gently help it with a flathead screwdriver (don’t pry hard—plastic can crack).

Step 3: Open the airbox and remove the old filter

• Lift the airbox cover just enough to access the filter (you usually don’t need to remove the whole cover).
• Pull the old filter straight out by hand.
• Use a clean shop towel to wipe loose dirt from the airbox sealing surface only. Do not wipe deep into the intake.

Step 4: Install the new filter correctly

• Place the new filter into the airbox by hand.
• Make sure the filter sits flat and fully seated in the groove all the way around. A pinched edge can leak dirt.

Step 5: Close and secure the airbox

• Lower the airbox cover back into place by hand.
• Re-latch all the metal clips by hand (use the flathead screwdriver only if needed to assist).
• Do a quick visual check that the cover is evenly closed on all sides.

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✅ After Repair

• Start the engine and let it idle for 10–20 seconds.
• Listen for hissing/whistling (a sign the airbox isn’t fully sealed).
• If you hear a leak, shut the engine off and re-check that the filter is seated and clips are fully latched.

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💰 DIY vs Shop Cost

Shop Cost: $40-$90 (parts + labor)

DIY Cost: $12-$25 (parts only)

You Save: $28-$65 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?

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.