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Toyota Corolla Engine Air Filter Replacement Guide
How to change the engine air filter element for the 2ZR-FAE 1.8L I4 in a 2020, 2021 and 2022 Toyota Corolla.

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2020 Corolla 1.8L I4
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Engine Air Filter Box
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Front Right Metal Latch
This automotive maintenance tutorial was specifically written to assist owners of the twelfth generation 2019 (hatchback), 2020, 2021, 2022 (and probably also the 2023, 2024 & 2025) Toyota Corolla sedan in checking, cleaning or changing the air filter element for the 2ZR-FAE 1.8L I4 engine.

Owners of other Toyota and Lexus vehicles such as the Camry, C-HR, Venza, Avalon, 86, Sienna, Tacoma, RAV4, Highlander, 4Runner, Sequoia, IS 350, RX 350, UX 200, GS 350, IS 300 and ES 350 may also find these DIY instructions to be helpful.

The OEM (original equipment manufacturer) engine air filter part number is Toyota 17801-F0020 (also known as part # 17801F0020).

A few compatible replacement aftermarket filters with their part numbers are as follows: EcoGard XA10586, K&N 33-3080, Beck/Arnley 042-1917 and Mann Filter C 17 008.

No tools are required to access and replace the filter.

A wet/dry shop vacuum may be useful if you'd like to clean the original filter or remove any debris in the air box.

The first two steps are to open the hood and move to the right (driver) side of the engine bay.

The rectangular shaped black plastic engine air filter housing is located behind the driver side headlight housing and in front of the fuse box and 12V automotive battery.

There are two metal latches that secure the top half of the air box to the bottom half.



 

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Release Front Fastener
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Rear Right Metal Latch
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Flip Off Second Latch
One fastener is located at the front right corner and the second fastener is situated at the rear right corner of the housing.

Flip the front right metal latch down and away from the air box cover.

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Second Fastener Released
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Pull Off Air Box Cover
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Two Tabs - Left Side
Then release the metal latch at the right rear corner of the air box cover.

Slide the air box cover towards the right (driver) side to release the two tabs on the left side from the slots attached to the bottom half of the housing.

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Old Air Filter Exposed
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Lift Out Old Air Filter
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Clean Out Air Box
Lift open the air box cover to access the old filter.

Pull the old filter straight out of the bottom half of the housing.

Check the bottom of the air box for any sand, leaves, insect or other debris.

Clean out any debris with the crevice attachment of your vacuum.

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Old Air Filter Removed
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Inspect Both Sides
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Clean With Vacuum
Inspect both sides of the old filter.

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

I recommend buying the EcoGard XA10586 engine air filter since it has excellent reviews on Amazon.

If you'd rather have a washable and re-usable filter, buy the K&N 33-3080 engine air filter that has a 10 year and million mile limited warranty.

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

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Toyota Part Number
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Lower In New Air Filter
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New Filter Installed
Orientate the new air filter with the pleats facing down and the rubber gasket facing up towards you.

Lower the new filter into the bottom half of the air box.

Make sure the filter is fully seated in the housing.

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Slide Two Tabs Into Slots
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Close Air Box Cover
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Flip Up Front Latch
Slide the two plastic tabs on the left side of the cover with their corresponding slots on the bottom half of the air box.

Lower the right side of the cover down into place.

Flip up the two metal latches and snap them back into place over the air box cover.

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Secure Rear Fastener
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Air Box Re-Assembled
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Engine Filter Change Done
Make sure the two fasteners are secured.

Double check that the two halves of the air box are flush together with no part of the new filter visible at the edges.

According to the maintenance schedule in the owner's manual, the service interval for changing the engine air filter is every 30,000 miles or every 36 months.

Don't forget to write down the filter change in your car's service records.

Please check out all of my 2020 Toyota Corolla DIY Repair & Maintenance Guides.
 

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