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Hyundai Elantra Cabin Air Filter Replacement Guide
How to change the A/C system's cabin air filter element in a sixth generation 2017 to 2020 Hyundai Elantra.

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Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

2018 Elantra Glove Box
Open Glove Box & Empty
Right Side - Damper Arm
This automotive maintenance tutorial was specifically written to assist owners of the 6th generation (2017, 2018, 2019, 2020 and probably also the upcoming 2021 model year) Hyundai Elantra sedan in checking, cleaning or changing the air conditioning system's cabin air filter in the HVAC blower motor housing.

Owners of other Hyundai, Genesis or Kia vehicles such as the Sonata, Accent, Veloster, Ioniq, Kona, Nexo, Venue, Tucson, Santa Fe, Palisade, G70, G80, G90, Soul, Sportage, Niro, Sorento, Telluride, Rio, Forte, Optima, Stinger, Cadenza, K900, Sedona and Seltos may also find these DIY instructions to be helpful.

A few compatible replacement cabin air filters with their part numbers are as follows: Premium Guard PC99239, TYC 800189P, Pentius PHB1381 and Denso 453-6006.

No tools are required to access and replace the filter.

The first few steps are to sit in the front passenger seat, open the glove box and empty out the contents.

Then move to the right outer side of the glove box and locate the black plastic damper arm.


Pull Arm Off Mounting Peg
Damper Arm Released
Right Side Stopper
Gently pull the black plastic damper arm off the two prongs on the end of the mounting peg.

Move to the inside of the glove box and locate the two round black plastic side stoppers.

1/4 Turn Counterclockwise
Remove Right Side Stop
1/4 Turn Counterclockwise
Slightly raise the glove box towards the dashboard to take the weight off the two side stops.

Rotate the handle on the side stoppers 1/4 turn in the counterclockwise direction before pulling them straight out of the side walls of the glove box.

Remove Left Side Stop
Gently Lower Glove Box
Filter Access Cover
Set the two side stoppers aside in a safe place.

Gently lower the glove down towards the floor mat.

The plastic hinges that attach the glove box may come apart from the dashboard as you lower the glove box. They can easily be re-attached later on.

Once the glove box has been lowered, you will be able to see the rectangular shaped black plastic cabin air filter access cover.

Right Side Retaining Clip
Left Side Retaining Clip
Pinch Together Two Tabs
There are two retaining clips holding the filter access cover in place to the HVAC blower motor housing with one on the left side and the other on the right side of the cover.

Pinch together the two tabs on the right side of the cover and pinch together the two tabs on the left side of the cover to release the retaining clips.

Pinch Together Left Tabs
Access Cover Removed
Old Filter Exposed
Pull the filter cover off and set it side in a safe place.

Once the filter cover is out of the way, you'll be able to see the white outer edge of the old cabin air filter.

Slide Out Old Air Filter
Removed From Filter Slot
Old Air Filter Removed
Slide the old air filter straight out of the slot in the HVAC blower motor housing.

Inspect the filter slot for any large debris such as leaves, twigs or insects.

If you have a crevice attachment for your wet/dry shop vacuum, clean out the filter slot in the HVAC blower motor housing.

Inspect Both Sides
Clean With Vacuum
Part # 97133-F2000
Inspect both sides of the old filter.

If the old filter is dark grey or black and clogged with dirt, dust, sand, insects, pollen, soot, hair, twigs and other debris, it should be replaced with a new element.

I recommend buying the Premium Guard PC99239 cabin air filter since it has excellent reviews on Amazon from other Hyundai Elantra owners.

If the old filter is relatively clean, just tap out the large debris and remove any fine dust with a vacuum cleaner.

The OEM (original equipment manufacturer) cabin air filter was marked as Hyundai / Kia part number 97133-F2000.

Empty Filter Slot
"Air Flow" Arrow Down
Install New Air Filter
Orientate the new air filter with the "Air Flow" arrow pointing down towards the floor mat.

Slide the new air filter straight into the slot.

Make sure the new filter is fully seated in the HVAC blower motor housing.

Line Up Access Panel
Push To Secure Clips
Right Side Damper Arm
Line up the access cover with the filter slot.

Gently push on the filter cover until you feel or hear the two retaining clips "click" securely into place.

Double check that the filter cover is secure.

Move to the right outer side wall of the glove box.

Snap Arm Over Prongs
Raise Glove Box
Re-Insert Side Stopper
Pop the hole at the bottom of the damper arm over the two prongs on the mounting post attached to the outer right side wall of the glove box.

Slightly raise the glove box until the openings in the side walls are past the dashboard.

1/4 Turn Clockwise Lock
Replace Left Side Stop
Close Glove Box - Done!
Re-insert the two side stoppers and rotate them 1/4 turn in the clockwise direction to secure them into place.

Replace the contents of your glove box such as the owner's manual, registration, insurance card and that huge stack of Starbucks or McDonald's napkins.

Close the glove box to complete the job.

Be sure to write down the filter change in your vehicle's service records.

Enjoy the fresh clean air from your A/C system!

The service interval specification for changing the cabin air filter is every 7,500 miles (12,000 KM) or at least every 12 months.

For more, please check out all of my 2017-2020 Hyundai Elantra DIY Repair & Maintenance Guides.

If you found this guide to be helpful, please consider making a small donation by clicking on the "Donate" button located to the right of this paragraph. Thank you!
(Note: I am not a registered charity. Donations are not tax deductible.)


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