Measurements in
6 steps · No tools · a generic hatchback’s glovebox
Replace a Car Cabin Air Filter: interactive 3D repair guide
A generic hatchback’s cabin air filter changed in 3D, the way the job really goes: engine off and the glovebox emptied, the damper arm unhooked before anything else, the glovebox squeezed past its stoppers and lowered, the housing cover’s two clips pinched, the old filter out level and the new one in with its AIR FLOW arrow the way the air goes. Press play to watch a step, Explode to draw the parts out of the dashboard, Reassemble for the way it all goes back.
What you need
A generic five-door hatchback of our own design, left-hand drive, parked in the bay with its engine off. Its cabin air filter sits in the air-conditioning housing behind the glovebox, and it comes out by hand: all it takes is a new filter in the size and kind the handbook gives. A torch helps to read the housing’s arrow.
Tools: Torch
- Check the size and the kind of filter in the handbook, or on the old one, before you buy: they differ from car to car.
Before you open it: the risk map
Seen through the closed car: the passenger airbag that nothing may prise, the damper arm that comes off first, the two stoppers and the cover’s two hidden clips, the housing’s AIR FLOW mark, and the fan under the filter, with its wiring.
Where not to force, drop or tug
- No pry Passenger airbag: hands off
- Unhook first Damper arm: off before the stoppers
- No debris Blower fan: keep leaves out
- Hidden cable Fan wiring: no tugging
Stoppers, clips and marks
- AIR FLOW mark
- Damper pin
- Hidden clip ×2
- Stopper ×2
Press Risk map (K) on the player to see them in 3D, through the closed car.
All 6 steps
- 1Engine off, open the door, empty the glovebox
Switch the engine and the fan off and take the key out. Open the passenger door wide, open the glovebox and take everything out of it, the handbook too: an empty glovebox is light, and nothing spills out when it comes down.
- 2Unhook the damper arm on the right trap
A damper arm on the glovebox’s right side slows it as it opens; its end is clipped over a small plastic pin on the glovebox’s side wall. Push the end off the pin, towards the door, and let the arm hang from the dashboard. It comes off before anything else: the glovebox must never go past its stoppers with the arm still on. Avoid this trap: Squeezed past its stoppers with the damper still clipped on, the glovebox swings on down, past the end of the arm’s stroke. The arm cannot stretch any further, so the glovebox’s weight tears the small plastic pin off its side, and the box drops onto its hinges. From now on it falls open with a bang, and on some cars a new damper means taking much of the dashboard apart. Unhook the arm first.
- 3Squeeze past the stoppers, lower the glovebox
Press the glovebox’s two side walls in towards each other, just far enough for the stopper on the outside of each to slip past the ledge behind the dashboard’s edge, and let the glovebox swing down slowly while you hold it. It hangs on its hinges, out of the way of the housing behind it.
- 4Pinch the cover’s two clips and take it off
Behind the glovebox, the filter housing’s narrow rectangular cover is held by a clip at each end. Pinch both clips in towards the middle at once and draw the cover straight out towards you, then lay it on the seat.
- 5Slide the old filter out, keeping it level
Draw the old filter straight out towards you, slowly and level. Its upper face is where the air comes in, so the leaves and the dust lie on it; tip it and they drop into the housing, where the fan picks them up. Note which way its arrow points, then lay it on the seat, dirty side up.
- 6Match the arrows, slide the new filter in trap
Read the housing’s own mark first: here it says AIR FLOW over an arrow pointing down, because the fan under the filter pulls the air down through it. Turn the new filter so its AIR FLOW arrows point the same way, down, and slide it in level and square until its edge is flush with the slot. Avoid this trap: The new filter slides in just as easily upside down, its arrows pointing up against the housing’s arrow pointing down. Nothing warns you, but now the air meets its fine back face first: it loads up and holds the air back sooner, and a carbon layer placed for one direction takes out less of the smell. Turn it over so its arrows point the way the housing’s does.
What you need
- A new cabin air filter · in the size and kind the handbook gives
- A torch · optional, to read the housing’s arrow
- A dust mask · optional, if dust or pollen bother you
- The car’s handbook · where its filter is, and which way it goes
Questions
How often should a cabin air filter be changed?
As often as your handbook’s service schedule says. Honda’s advice, for example, is every 12,000 to 15,000 miles or at least once a year, and sooner after dusty roads, heavy pollen or city smog. Weak air from the vents or a musty smell are signs it is clogged.
Which way does the arrow on a cabin air filter point?
The way the air flows through it, towards the fan. In most cars that is down, and the housing or its cover often carries an AIR FLOW arrow of its own to match. Some makers mark UP instead, which is the side that faces up, not the airflow. Follow your car’s mark, its handbook or the old filter’s arrow; the old filter’s dirty side faces where the air comes from.
What happens if a cabin air filter goes in upside down?
It still fits and it still filters, but the air meets it from the wrong side: a layered filter loads up and holds the air back sooner, and a carbon layer placed for one direction takes out less of the smell. Turn it so its arrow follows the air.
Do I need tools to change a cabin air filter?
Usually not: behind the glovebox it is a job for your hands alone, as on this car. A few cars hide the housing behind a panel held by a screw or two, which the handbook shows.
Why does the glovebox damper have to come off first?
The damper slows the glovebox as it opens, and its stroke is short. Free the stoppers with it still on and the glovebox swings past the end of its stroke and tears its plastic pin off; on some cars a new damper means taking much of the dashboard apart.
Should I buy a particle or an activated carbon cabin filter?
A particle filter catches dust and pollen; one with an activated carbon layer also takes out smells and some fumes from the traffic. Either way, buy the size your car takes, from the handbook or the old filter.
Safety
Switch the engine and the fan off and take the key out before you reach behind the dashboard. The old filter is full of dust and pollen: draw it out level, keep it away from your face (a dust mask helps if they bother you) and put it straight in a box or a bag. Never prise at the dashboard’s top: the passenger airbag is behind it.
- Engine off: switch the engine and the fan off and take the key away before you reach behind the dashboard or under the bonnet.
About this guide
3D Spatial Reconstruction: models are engineered from factual measurements to show the parts, the fixings and the order of the job before you start. Always check the handbook of your own car.
The car is a generic five-door hatchback of our own design, left-hand drive; its dashboard, glovebox and air-conditioning housing are drawn to a compact car’s sizes, but the details differ from car to car, so follow your handbook. The order is the one makers’ handbooks and parts sellers give: engine off and the glovebox emptied, its damper arm unhooked, its side walls squeezed past the stoppers and the glovebox lowered, the housing cover unclipped, the old filter out level, the new one in with its arrow the way the air flows.
Where cars differ from this one: the damper sits on the glovebox’s right here, as in Toyota’s handbook for the Prius and as the brief had it; some cars have it on the left and some have none, and some gloveboxes lift right off their hinges (Toyota’s), where others only hang (Hyundai’s). The air flows down through the filter here, as Honda and Hyundai mark theirs; Toyota marks its filters ↑UP for the side that faces up, and FRAM’s instructions for one Toyota-fit filter say its arrow points up. The brief’s HEPA and carbon filter is what makers sell as a particle filter with an activated carbon layer: buy the one your car takes.
The filter is 215 × 194 × 29 mm, the size of FRAM’s CF10285. A damper arm broken by lowering the glovebox with it still on is what iFixit’s guide for the 2007 to 2015 Mitsubishi Lancer warns of, and its Acura TSX guide says the fix can mean taking much of the dashboard apart. The 15 minutes and the $26 are a parts seller’s figures for that filter (FRAM’s list price); what a shop charges to fit one varies too much to give a figure. The 3D runs faster than real hands do.
Sources: Toyota: 2016 Prius owner’s manual, air conditioning filter (power off, the damper slid off, the sides pushed in to free the claws, the glovebox lowered while held, the filter cover, the “UP” marks), Hyundai: Tucson (NX4) 2025 owner’s manual, climate control air filter (the support rod, the stopper pins on both sides, the cover’s lock, the arrow pointing down), Bernardi Parts (a Honda dealer): changing a Honda’s cabin air filter (the damper arm unhooked, the sides squeezed so the stops clear, the cover’s clips, the arrows as on the old filter, every 12,000 to 15,000 miles or once a year), FRAM: CF10285 Fresh Breeze cabin air filter (no tools, the dampener rod detached, the cover’s two latches, its arrow pointing up for that fit, 8.471 × 7.644 × 1.143 in, active carbon), Price: FinditParts, FRAM CF10285 list price $26.15, behind the glovebox, about 15 minutes to fit (October 2026), iFixit: cabin air filter for a 2007 to 2015 Mitsubishi Lancer (the damper arm breaks if the glovebox comes down with it on), iFixit: Acura TSX cabin air filter (a broken damper can mean taking much of the dashboard apart), Filterbuy: cabin air filter airflow direction (the arrow is the airflow, most cars draw it down to the fan, UP marks are not airflow, a backwards filter clogs sooner, debris lies on the upstream side), MANN-FILTER: FreciousPlus cabin filters (a particle layer, an activated carbon layer, a biofunctional layer).
The 3D models, drawings and text are our own. The car shown is a generic one of our own design, not any one maker’s model.