Hyundai Tucson Cabin Air Filter: Intervals, Fitment & Warning Signs

A genuinely honest diagnostic point: if a musty smell persists after fitting a fresh filter, mould further downstream in the evaporator may be the real cause — plus a practical spray-through technique and a habit that helps prevent it forming.

Illustration for editorial purposes

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OEM Part Number: confirm via VIN — cabin air filter (aftermarket) Febi 34555 / Valeo 715910

Accuracy note: Covers the Hyundai Tucson (2015-2020) as listed in the UK aftermarket catalogues. A cabin filter is a cheap part, but it is bought by number, and the number depends on whether your car was built with a standard particulate filter or an activated-carbon one, as well as on trim and build date. The references below are aftermarket catalogue listings for this generation, grouped by brand; the carmaker's own number is not quoted in those listings, so check the genuine filter against your VIN if you want a guaranteed match. Carbon versions carry their own numbers and are listed separately.

Cabin filter, standard (aftermarket)	Febi 34555, Valeo 715910, Blue Print ADG02551, Filtron K1409
Activated-carbon version (aftermarket)	Filtron K 1409A, Febi 184411
Genuine (OE) number	Not quoted in the catalogue listings — the fitted filter varies by trim and build date, so order the genuine one against your VIN
Fitment notes	Standard and carbon filters have different numbers, and the right size depends on trim and build date. Check which type your car was built with before ordering.

A Genuinely Honest Diagnostic Point Worth Knowing Before Buying Another Filter — Hyundai Tucson Cabin Air Filter

If a musty smell persists even after fitting a fresh cabin filter, this is genuinely worth knowing: the filter itself isn't always the source. Mould or mildew can develop further downstream, on the evaporator core or within the ducting itself, meaning a new filter alone won't necessarily resolve a smell that's actually originating from further back in the system. A genuinely practical technique worth trying: with the filter removed, spraying a mould and mildew treatment down through the now-empty filter slot while running the blower on medium reaches the evaporator and plenum directly, treating the actual source rather than just the filter that sits in front of it.

A genuinely useful, real preventative habit worth building: switching off the air conditioning compressor specifically (while leaving the blower running on outside air) for the last few minutes of a journey, before you actually park up, helps dry out the evaporator coils before the car sits switched off. A wet evaporator sitting undisturbed for hours is genuinely more prone to developing mould than one that's had a chance to dry out first, so building this habit into regular journeys can help prevent the smell developing in the first place rather than just treating it after the fact.

It's also worth knowing that a sudden, noticeable reduction in airflow, particularly if it happens quite abruptly rather than gradually, can occasionally be caused by debris or even a rodent nest blocking the air intake at the base of the windscreen — worth checking this area directly for leaves, twigs, or other blockages if a filter change alone doesn't restore normal airflow.

Hyundai Tucson Cabin Air Filter: Easy to Forget, Easy to Fix

Skipping this one on a Hyundai Tucson won't cost you performance or reliability, only air quality inside the cabin — which is why it's routinely the most overdue item on any used car's maintenance history.

Hyundai Tucson Cabin Air Filter: Watch: Replacing It

🎬 Watch: How to Replace Cabin Air Filter - Hyundai Tucson (2016-2021)

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Hyundai Tucson Cabin Air Filter reference plate

Before you buy: filter size and whether your car uses a standard or activated-carbon filter varies by trim. Always confirm against your VIN before ordering.

Hyundai Tucson Cabin Air Filter: What It Does

Two filters get mixed up constantly on the Hyundai Tucson: this one cleans air for the cabin ventilation system, catching dust, pollen and (on activated-carbon versions) some airborne pollutants, while the separate engine air filter deals purely with combustion air. They don't share a part number or a purpose.

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Hyundai Tucson Cabin Air Filter: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Cabin Air Filter Guide for signs it needs changing, confirming fitment against your VIN, and choosing standard, carbon, or HEPA media.

More Hyundai Cabin Air Filter

The same part, covered across other Hyundai models.