🔧 TLX - Cabin Air Filter Replacement

Your TLX’s cabin air filter cleans the air going into the HVAC system (heat/AC). Replacing it improves airflow and helps reduce dust, odors, and fogging.

Difficulty Level: Beginner | Estimated Time: 0.3-0.7 hours

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⚠️ Safety & Precautions

• ⚠️ Turn the ignition OFF and remove the key/fob from the cabin.
• ⚠️ Don’t force plastic panels—use gentle pressure to avoid breaking clips.
• ⚠️ Battery disconnect is not required for this job.

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🔧 Required Tools

You'll need the following tools for this repair:

• Clean nitrile gloves
• Safety glasses
• Flashlight
• Small flat trim tool

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Cabin air filter - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Move the front passenger seat back to give yourself room.
• Have a trash bag ready for the old filter.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the glove box and clear space

• Open the glove box and remove any items.
• Use nitrile gloves and safety glasses to keep dust off your hands and eyes.

Step 2: Remove the glove box damper (soft-open arm)

• On the right side of the glove box, locate the small “damper” arm (it slows the glove box as it opens).
• Gently pop it off its peg using a small flat trim tool. Go slow—plastic gets brittle.

Step 3: Lower the glove box fully

• Push in on both sides of the glove box (near the upper corners) to clear the stopper tabs.
• Lower the glove box down toward the floor.

Step 4: Remove the cabin filter cover

• Behind the glove box, find the rectangular filter housing cover.
• Press the side tabs and pull the cover straight off (use the flashlight to see the tabs clearly).

Step 5: Remove the old filter

• Slide the old filter straight out of the housing.
• Keep it level so debris doesn’t spill into the blower (the HVAC fan).

Step 6: Install the new filter (airflow direction matters)

• Check the new filter for an “AIR FLOW” arrow printed on the side.
• Install it in the same direction as the old one (typically the arrow points downward toward the floor).
• If it doesn’t slide in easily, don’t force it—pull it out and re-square it, then try again.

Step 7: Reinstall the cover and glove box

• Snap the filter cover back on until both tabs click.
• Lift the glove box back up and push the sides in again to pass the stopper tabs.
• Reattach the damper arm to its peg by hand; it should click into place.

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✅ After Repair

• Start the car and run the fan at medium speed to confirm strong airflow and no rattles.
• Turn on A/C and heat briefly to ensure the airflow direction feels normal.
• If you hear ticking or fluttering, the filter may not be seated—recheck the cover and filter alignment.

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💰 DIY vs Shop Cost

Shop Cost: $70-$160 (parts + labor)

DIY Cost: $15-$40 (parts only)

You Save: $55-$120 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.7 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.