Parts for your 2021 Mitsubishi Eclipse cross-Cabin filter

2021 Mitsubishi Eclipse Cross cabin filter — purpose, location and service advice

Yes, the 2021 Mitsubishi Eclipse Cross is fitted with a cabin air filter. Mitsubishi’s own technical literature identifies it as the “air conditioner filter” in the HVAC system, located behind the glovebox and treated as a service item. See the 2021 Eclipse Cross Owner’s Manual (Air Conditioner/Heater—Maintenance section) and the Eclipse Cross HVAC Service Manual (Group 55A), which specify inspection/replacement procedures and the behind‑glovebox access. Genuine parts catalogues for the GK/GL-series Eclipse Cross list a replaceable cabin filter element as well.

What does it do? The cabin filter screens dust, pollen, soot and road debris before air enters the cabin. Many owners opt for an activated carbon version to help reduce odours and some exhaust fumes. Keeping it fresh helps the Eclipse Cross demist faster, keeps the blower running quietly, and makes life easier for allergy sufferers.

When should it be changed? As a practical rule for Australia and New Zealand, have it checked at every service and replace it about every 12 months or 15,000–20,000 km, sooner if driving on unsealed roads, through bushfire smoke, or in urban smog. Mitsubishi schedules may nominate longer intervals (often around 30,000 km in normal conditions), but local dust and pollen loads can clog it earlier. If the airflow drops, there’s a musty whiff on start‑up, or the fan gets noisy, it’s due.

Where is it and what’s involved? It sits in a slot behind the glovebox. The typical process is to lower the glovebox, release the side stops, pop off the small rectangular access cover, slide the old filter out, and install the new one with the airflow arrow oriented correctly. Always vacuum out leaves from the housing before refitting. If in doubt, let a technician handle it—it’s a quick job and pairs well with an A/C system sanitise.

• Choose: standard particulate filter for dust/pollen, activated carbon for odours/fumes.
• Stick to quality media to avoid blower strain and window fogging issues.
• Keep service records—regular changes protect the evaporator and keep the HVAC efficient.

This small, inexpensive part quietly keeps the Eclipse Cross’s cabin air clean and the HVAC working at its best—well worth making it a routine item on the service checklist.

Popular questions about 2021 Mitsubishi Eclipse Cross cabin filters

Where is the cabin filter located on a 2021 Eclipse Cross?
It’s housed behind the glovebox. Lower the glovebox, release the side tabs/stops, remove the rectangular access cover on the HVAC case, and the filter slides straight out. Refit the new filter with the airflow arrow in the correct direction.

How often should the cabin filter be replaced in Australia or New Zealand?
Have it inspected at each service and replaced roughly every 12 months or 15,000–20,000 km. In dusty or smoky conditions, or with lots of urban stop‑start, replace more often. Some factory schedules allow up to 30,000 km in light duty, but local conditions usually justify shorter intervals.

Can the Eclipse Cross use an activated carbon or higher‑grade filter?
Yes. Activated carbon filters help with odours and some gases. Higher‑efficiency media can capture finer particles, but ensure the filter is designed for the Eclipse Cross so it doesn’t restrict airflow. Quality, model‑specific filters keep the blower happy and the demister effective.