How to Replace the Engine Air Filter on a 2015 Honda Civic (DIY Guide)
Step-by-step instructions with required tools, parts list, safety tips, and air box bolt torque specs
How to Replace the Engine Air Filter on a 2015 Honda Civic (DIY Guide)
Step-by-step instructions with required tools, parts list, safety tips, and air box bolt torque specs
🔧 Civic - Engine Air Filter Replacement
Replacing your engine air filter keeps dust out of your engine and helps it breathe properly. A dirty filter can reduce power and fuel economy, so this is an easy maintenance win.
Difficulty Level: Beginner | Estimated Time: 0.2-0.5 hours
⚠️ Safety & Precautions
- 🛑 Work on a cool engine to avoid burns.
- 🛑 Keep dirt and leaves out of the open air box.
- 🛑 No battery disconnect is required for this repair.
🔧 Required Tools
You'll need the following tools for this repair:
- 10mm socket
- 1/4" drive ratchet
- 6" socket extension
- Flathead screwdriver
- Clean shop towel
- Nitrile gloves
- Safety glasses
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Engine air filter - Qty: 1
đź“‹ Before You Begin
- Park on level ground, shift to Park, and set the parking brake.
- Turn the engine off and let it cool for at least 10 minutes.
- Assumption: your Civic uses clips or 10mm bolts.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Open the hood and find the air box
- Open the hood and support it securely.
- Locate the air filter housing (air box). It’s a black plastic box connected to the intake tube.
Step 2: Release the air box cover
- If your air box uses metal clips, flip them open by hand. Use a flathead screwdriver only if needed to gently pry.
- If your air box uses bolts, use a 10mm socket, 1/4" drive ratchet, and 6" socket extension to loosen/remove the bolts.
- Tip: Don’t drop bolts into the engine bay.
Step 3: Lift the cover and remove the old filter
- Lift the air box lid up enough to access the filter (you usually don’t need to remove the whole intake tube).
- Pull the old filter straight out and keep it level so debris doesn’t fall into the box.
Step 4: Clean the air box sealing surface
- Use a clean shop towel to wipe out loose dust and leaves inside the lower air box.
- Wipe the rim (sealing surface) where the filter sits so the new filter seals correctly.
Step 5: Install the new engine air filter
- Insert the new filter into the air box in the same orientation as the old one.
- Make sure it sits flat all the way around (no corners folded).
Step 6: Close and secure the air box
- Lower the air box lid back into place and make sure it aligns evenly.
- Re-latch the clips by hand, or reinstall the bolts using a 10mm socket and 1/4" drive ratchet.
- If bolts were removed: Torque to 9.8 Nm (7 ft-lbs).
- Tip: Snug is enough—don’t overtighten plastic.
Step 7: Final check
- Visually confirm the lid is fully seated and all clips/bolts are secured.
- Make sure no tools or rags are left in the engine bay.
âś… After Repair
- Start the engine and let it idle for 30 seconds.
- Listen for any hissing/whistling (this can mean the air box isn’t sealed).
- If the engine runs rough right away, shut it off and re-check that the filter is seated and the lid is clipped/bolted evenly.
đź’° DIY vs Shop Cost
Shop Cost: $40-$90 (parts + labor)
DIY Cost: $15-$30 (parts only)
You Save: $25-$60 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.2-0.5 hours.
🎯 Ready to get started?
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