2019–2024 Acura RDX

2019-2024 Acura RDX - Cabin Air Filter Replacement

By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026

🔧 Easy 15-25 minutes $20 DIY

Save $65 by doing it yourself! Shop cost: $85

Quick answer: Cabin Air Filter Replacement on a 2019–2024 Acura RDX is rated Easy and takes about 15-25 minutes. You'll need 1 tool for this job, and parts cost about $20. This guide walks you through the full job step by step, including the mistakes to avoid.

Quick Video Tutorial

Parts You Need

Total Cost

$20.00

Part Name	Part Number	Price	Buy
Cabin air filter	—	$20.00	Amazon

About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.

💡 Pro tip: Order all parts at once to save on shipping

Step-by-Step Instructions

Follow these steps carefully

Park the RDX and clear the glovebox

Park the RDX on level ground, ignition off, parking brake set. The cabin filter sits behind the glovebox — empty it completely so nothing falls behind the box, and squeeze both sides evenly so the box drops straight.

Drop the glovebox fully

Squeeze both glovebox sides inward to release the stops and lower it fully — some trims need it completely down for a clear view. If a damper arm is attached, unhook it from the right-side pin and lower gently.

🔧 Mechanic's note — Ray Delgado

Unhook the damper before you squeeze the sides — fighting the damper is what cracks the glovebox stops, and I've seen plenty of them snapped that way.

Remove the filter door

Pull the filter door off once its retaining clips release, working evenly from both sides — prying from one corner cracks them. Before removing the filter, note which way the airflow arrow points; the new filter must match that direction.

🔧 Mechanic's note — Tom Becker

In my experience, Those door clips crack if you pry one corner — pull evenly from both sides. If one cracked years ago, the door usually still seats fine; don't panic-buy a new door over a hairline crack.

Swap in the new filter

Install the new filter with its airflow arrow matching the old one's, seated flat with no gaps around the housing edges. Acura's maintenance minder typically calls for the cabin filter around the 15,000 to 20,000-mile mark.

🔧 Mechanic's note — Ray Delgado

From my bay, That black soot on the old filter tells a story — if you commute in traffic daily, cut the interval to a year instead of waiting for the maintenance minder.

Reassemble and test

Refit the filter door until all clips click, lift the glovebox past its stops, re-hook the damper, and close the box. Run the fan through every speed on fresh air — strong, even airflow with no whistling means it's done.

All Done!

Test your repair before closing everything up. If something doesn't work right, double-check your steps.

⚠️ Common Mistakes to Avoid

• Installing the filter backwards (ignore the airflow arrow)
• Forcing a thicker filter so the door will not latch
• Tearing glovebox stops, dampener arms, or filter-door clips
• Leaving leaves and debris in the housing so they blow into the cabin

Tools You'll Need

Trim tool or flat screwdriver (optional) Flashlight Gloves Vacuum or rag for debris

⚠️ Safety First!

• Informational DIY. EZ Car Fix is not a shop.
• Bag the old filter — it can shed dust, leaves, and debris into the cabin.
• Do not force clips or the glovebox dampener; plastic tabs break easily.
• If a musty smell returns within a week, it may be a drain clog or evaporator issue — not just the filter.