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2020 Toyota GR Supra
2020 Toyota GR Supra
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How to replace cabin air filter in a Toyota Supra 2019 2020 2021 2022 2023 2024 A90 A91

How to replace cabin air filter in a Toyota Supra 2019 2020 2021 2022 2023 2024 A90 A91

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Tools & Fluids

Trim
Trim
Tool
T20
T20
Torx Star
T25
T25
Torx Star
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Flashlight
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Nitrile
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How to Replace the Cabin Air Filter (Microfilter) on a 2020 Toyota GR Supra

Step-by-step replacement instructions with tools needed, access paths (footwell or glovebox), and install tips

How to Replace the Cabin Air Filter (Microfilter) on a 2020 Toyota GR Supra

Step-by-step replacement instructions with tools needed, access paths (footwell or glovebox), and install tips

Orion
Orion

đź”§ Supra - Cabin Air Filter Replacement

Your Supra’s cabin air filter (also called a “microfilter”) cleans the air going through the A/C and heater. Replacing it helps reduce musty smells, improves airflow, and keeps dust/pollen out of the cabin.

Difficulty Level: Beginner | Estimated Time: 0.3-0.8 hours


⚠️ Safety & Precautions

  • 🛑 Turn the ignition OFF and remove the key/fob from the car.
  • 🧤 Wear gloves and a mask if you’re sensitive to dust/pollen.
  • ⚠️ Use gentle force on trim panels; cold plastic cracks easier.
  • 🔌 Battery disconnect is not required for this job.

đź”§ Required Tools

You'll need the following tools for this repair:

  • Trim removal tool set (plastic)
  • Torx T20 screwdriver
  • Torx T25 screwdriver
  • Small flashlight
  • Nitrile gloves
  • Dust mask

🔩 Required Parts

HowToo sells all the parts you need for this repair:

  • Cabin air filter (microfilter) - Qty: 1

đź“‹ Before You Begin

  • Park your Supra on level ground and set the parking brake.
  • Move the passenger seat back to give yourself room to work.
  • Run the fan 1 minute, then shut off. This helps dry the box.

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm which access style your Supra has

  • Use a flashlight and look under the passenger side dash/footwell for a small rectangular filter door.
  • If you see a filter door under the dash, follow Path A (Passenger footwell).
  • If you do NOT see a filter door there, follow Path B (Behind the glovebox).

Step 2A: Remove the passenger footwell trim panel (Path A)

  • Use a trim removal tool set (plastic) to gently pry down the passenger-side lower cover panel.
  • If your panel has screws, remove them with a Torx T20 screwdriver.
  • Lower the panel carefully and set it aside.
  • Plastic tools prevent scratches. A trim tool is a plastic pry tool made to remove panels without damage.

Step 3A: Open the cabin filter access door (Path A)

  • Locate the cabin filter housing door (usually a small rectangular cover).
  • Release the clips by hand, or remove screws using a Torx T20 screwdriver if equipped.
  • Pull the cover straight off and keep it nearby.

Step 4A: Remove the old filter (Path A)

  • Slide the filter out slowly with your hands (use nitrile gloves).
  • Note the airflow direction arrow printed on the filter frame.
  • Use a flashlight to check inside the housing for leaves/debris.

Step 5A: Install the new filter (Path A)

  • Insert the new cabin air filter (microfilter) in the same direction as the arrow you noted.
  • Make sure the filter seats fully and doesn’t buckle.

Step 6A: Reinstall the cover and trim (Path A)

  • Reinstall the filter door until clips click, or tighten screws with a Torx T20 screwdriver until snug.
  • Reinstall the footwell trim panel using the trim removal tool set (plastic) to line up clips.

Step 2B: Empty and open the glovebox (Path B)

  • Open the glovebox and remove items so nothing falls out.
  • Use a flashlight to look for the damper (a small arm on the right side that slows the glovebox).

Step 3B: Release the glovebox stops (Path B)

  • Gently push in the glovebox side walls by hand to clear the “stops” and allow the glovebox to drop further.
  • If a damper arm is present, disconnect it carefully by hand or with a trim removal tool set (plastic).
  • Go slow—don’t force clips.

Step 4B: Remove the cabin filter cover (Path B)

  • Behind the glovebox, find the cabin filter housing cover.
  • Release clips by hand, or remove screws with a Torx T20 screwdriver or Torx T25 screwdriver if equipped.
  • Remove the cover and set it aside.

Step 5B: Replace the filter (Path B)

  • Pull the old filter out with nitrile gloves.
  • Install the new cabin air filter (microfilter) with the airflow arrow matching the original direction.
  • Reinstall the cover and tighten screws with the same Torx driver until snug.

Step 6B: Reassemble the glovebox (Path B)

  • Reconnect the damper (if removed) by hand.
  • Lift the glovebox back up and pop the stops back into place by gently pushing the sides inward.
  • Close the glovebox and confirm it opens/closes smoothly.

âś… After Repair

  • Start your Supra and run the blower fan on medium for 30 seconds.
  • Switch between fresh air and recirculation to confirm airflow is strong and quiet.
  • If you hear a fluttering noise, the filter may be upside down or not seated—recheck the arrow direction.

đź’° DIY vs Shop Cost

Shop Cost: ₹1,500-₹4,000 (parts + labor)

DIY Cost: ₹800-₹2,500 (parts only)

You Save: ₹700-₹1,500 by doing it yourself!

Shop labor rates vary but typically run ₹800-₹2,000/hour. This repair takes a shop approximately 0.3-0.8 hours.


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