Parts for your 2025 Mitsubishi Asx-Cabin filter

2025 Mitsubishi ASX cabin-filter — what it does and how to look after it

Yes, the 2025 Mitsubishi ASX is fitted with a cabin (pollen) filter. This is confirmed by Mitsubishi service and parts information (the Mitsubishi ASA electronic parts catalogue lists an “air conditioner filter” for ASX models through MY25) and by major aftermarket catalogues used in Australia and New Zealand (including Ryco and Bosch) that specify replacement cabin filters for the ASX.

The cabin filter’s job is simple but important: it cleans the air coming through the HVAC system so the driver and passengers breathe less dust, pollen and road grime. In local conditions it also helps reduce bushfire smoke particulates and diesel soot, and when a carbon-activated type is fitted it can knock down odours and some gases. Keeping this filter in good nick helps the air-con work efficiently, keeps the evaporator cleaner, and improves demisting on cold, damp mornings.

For everyday use in Australia and New Zealand, a sensible rule is to inspect the cabin filter every 15,000 km or 12 months, and replace it at 15,000–20,000 km. Shorten that interval if the ASX spends time on gravel roads, in rural dust, construction zones, or after heavy smoke or pollen seasons. Mitsubishi owner’s manuals for ASX models specify routine inspection and periodic replacement as part of scheduled servicing.

Owners who like a quick DIY can swap the filter in a few minutes. It sits behind the glovebox:

• Open and lower the glovebox (press the sides in to release the stops, unclip the small damper if fitted).
• Unclip the rectangular cabin filter cover on the HVAC housing.
• Slide the old filter straight out, noting the airflow arrow direction.
• Insert the new filter with the arrow aligned to the housing marking (typically pointing down on ASX, check the moulded indicator), refit the cover and close the glovebox.

Choosing the right media matters. A standard particulate filter is fine for city and highway use, a carbon-activated version is a good upgrade for odours and fine smoke, premium high-efficiency media can help during heavy pollen or allergy seasons. Whichever type, stick with a reputable brand to ensure the filter seats properly and seals against bypass.

Signs that the ASX cabin filter is due include weak fan airflow, a musty smell on start-up, a hazy windscreen that’s slow to clear, or the fan sounding louder than usual. As part of routine servicing, a technician will check the filter, housing seal and drainage, and replace the element so the HVAC keeps working at its best.

• Where is the cabin filter in a 2025 Mitsubishi ASX?
  It’s located behind the glovebox. Drop the glovebox, pop off the filter cover on the HVAC housing and slide the filter out. The whole job typically takes 5–10 minutes and needs no special tools.
• How often should the ASX cabin filter be replaced?
  Plan on every 12 months or 15,000 km in normal Australian and New Zealand driving. Replace sooner if you see reduced airflow, notice odours, or drive frequently in dust, smoke or high pollen.
• Which way does the cabin filter face, and which type is best?
  Match the airflow arrow on the new filter with the marking on the housing (commonly pointing down on the ASX). For most owners, a carbon-activated filter is a great all-round pick, it traps particles and helps reduce odours.