Parts for your 2020 Nissan Serena-Cabin filter

2020 Nissan Serena Cabin Filter — What It Does and When to Change It

For the 2020 Nissan Serena (C27 series), a cabin air filter is fitted from factory. This is documented in Nissan’s technical literature for the C27 Serena — the Heater & Air Conditioning (HA) service manual section details the “air conditioner filter” removal/installation behind the glovebox, and Nissan’s electronic parts catalogue lists a “Filter Assy – Air Conditioner” for C27 models. Major filter catalogues for the Serena also specify direct-fit cabin filters for 2016–2020 vehicles, confirming fitment.

The cabin filter’s job is straightforward: trap dust, pollen, road soot, bushfire smoke particulates, and general grime before they get blown through the vents. That keeps the Serena’s HVAC core cleaner, helps demist performance, and makes the air nicer to breathe on long hauls with the whānau. Many owners prefer an activated-carbon type to help take the edge off exhaust whiffs and odours on city commutes.

As part of servicing of the 2020 Nissan Serena cabin-filter, it’s wise to replace it about every 12 months or 15,000–20,000 km, sooner if the vehicle spends time on dusty metal roads, near construction, or under heavy pollen. Tell-tales it’s due include reduced fan flow, a persistent musty smell on start-up, or stubborn windscreen fogging.

Location and basics: on the 2020 Serena, the filter sits behind the glovebox. The glovebox drops down by releasing the side stops, revealing a small rectangular door on the HVAC case. Slide out the old filter, note the airflow arrow orientation, and slip in the new one. It’s a five‑to‑ten minute job for a competent DIYer, though many owners fold it into their regular service to keep the HVAC box sealed correctly and the glovebox dampers re‑clipped properly.

Choosing a replacement: stick with a quality unit that matches the Serena’s dimensions and airflow spec. Options include standard pollen filters, activated carbon filters for odours, and upgraded fine‑particle media where smoke or urban pollution is common. If the old filter is heavily loaded, a quick vacuum of the filter slot and a visual check for leaves or debris in the intake plenum helps the next filter last longer. Keeping this small part fresh pays off in quieter fans, cleaner vents, and a cabin that simply feels better to travel in.

• Recommended interval: 12 months/15,000–20,000 km (shorten in dusty conditions)
• Symptoms it’s due: weak airflow, odours, fast fogging on cool mornings
• Fitting tip: install with airflow arrows oriented correctly

Popular questions about the 2020 Nissan Serena cabin filter

Where is the cabin filter on a 2020 Serena?
It’s housed behind the glovebox. Lower the glovebox by releasing the side stops, then pop off the rectangular access cover on the HVAC unit. The filter slides straight out on rails. Refit with the airflow arrows pointing the same way as the original.

How often should Serena owners replace the cabin filter in AU/NZ conditions?
Generally every 12 months or 15,000–20,000 km works well. Shorten the interval if the vehicle runs in dusty rural areas, through heavy pollen seasons, or spends time in city traffic where soot loads the media faster. If airflow drops or odours persist, change it sooner.

Can the Serena be driven without a cabin filter?
It’ll still blow air, but it’s not a good idea. Running without a filter lets debris and dust cake the blower and evaporator, which can mean noisier fans, poorer demisting, and more frequent HVAC cleaning down the track. A proper filter protects the system and keeps the cabin healthier.