Parts for your 2020 Mitsubishi Asx-Cabin filter

2020 Mitsubishi ASX cabin filter — what it does and when to change it

Technical references confirm the 2020 Mitsubishi ASX is fitted with a cabin air (pollen) filter. The 2020 ASX Owner’s Manual for AUS/NZ markets lists an air‑conditioning filter located behind the glovebox, Mitsubishi Motors service information schedules inspection/replacement at regular intervals, the Mitsubishi ASA electronic parts catalogue includes an “Air Conditioner Filter” for 2020 ASX/RVR/Outlander Sport, and major application catalogues (e.g., Ryco, Mann‑Filter, Sakura) specify compatible cabin filters for 2010–2021 ASX. That means a cabin filter is relevant and used on this model.

The cabin filter in a 2020 Mitsubishi ASX quietly does the hard yards, catching dust, pollen, road soot and bushfire haze before it reaches the cabin. It keeps the air inside fresher, eases allergy flare‑ups, and helps protect the air‑con evaporator and blower from clogging, which can save on bigger repairs down the track. Many owners also opt for an activated‑carbon version to help reduce odours and some exhaust fumes — handy for city traffic and long commutes.

As part of routine servicing, the ASX’s cabin filter should be checked at each service and replaced on a time/kilometre basis. Under typical Australian and New Zealand conditions, a practical rule is replacement about every 30,000 km or 24 months, whichever comes first. For drivers doing lots of dusty gravel, coastal salt‑air, rural pollen seasons, or stop‑start city work, bringing that forward to 15,000–20,000 km or 12 months is a smart move.

Telltale signs it’s due include:

• Weak airflow even with the fan on high
• Musty or earthy smells on start‑up
• Windows fogging more easily
• Extra fan noise or whistling

Replacement is a quick glovebox‑area job on the ASX and can be DIY with care, but most owners roll it into scheduled servicing so the housing can be inspected and any leaves/debris cleared. Choosing a quality filter (standard particulate or activated carbon) and making sure it’s installed with the airflow arrow correct keeps the HVAC system happy. It also pays to jot the odometer reading/date on the filter frame for easy tracking next time.

To keep the ASX breathing easy year‑round: have the cabin filter inspected at every service, replace it on time, and consider a carbon element if odours or fumes are a gripe. The payoff is cleaner air, quieter fans, and an air‑con system that doesn’t have to work as hard.

Where is the cabin filter on a 2020 Mitsubishi ASX?

It’s located behind the glovebox. Lower the glovebox, release the side stops, and the rectangular filter cover on the HVAC case becomes accessible. Slide the old filter out, note the airflow direction, and slide the new one in the same way.

How often should the 2020 ASX cabin filter be replaced?

For most Aussie and Kiwi driving, every 30,000 km or 24 months works well. If the ASX sees dusty roads, heavy pollen, or lots of city congestion, aim for 15,000–20,000 km or 12 months, and have it checked at each scheduled service.

Is an activated‑carbon cabin filter worth it?

Yes if odours, fumes, or smoke are common on the daily run. Activated‑carbon filters add an odour‑absorbing layer while still trapping dust and pollen, with no change to the service procedure or interval.