Honda HR-V Cabin Air Filter: Intervals, Fitment & Warning Signs

On the HR-V, a dead rodent inside the filter housing itself has genuinely been the actual cause of a persistent bad smell.

Illustration for editorial purposes

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OEM Part Number: confirm via VIN — cabin air filter (aftermarket) Mann CU1823 / Febi 32609

Accuracy note: Covers the Honda HR-V (2015-) 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)	Mann CU1823, Febi 32609, Valeo 715692, Blue Print ADH22515
Activated-carbon version (aftermarket)	Febi 184405, Valeo 516105, Blue Print ADH22518
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.

Accuracy note: genuinely worth knowing: HR-V cabin filters are usually one of the easiest DIY jobs on the car — often just a clip-out panel behind the glovebox — but the physical dimensions can change between facelifts of the same model, so a part that fits an early HR-V won't always fit a later one.

A Genuinely Distinctive, Real Thing Worth Checking — Honda HR-V Cabin Air Filter

If a genuinely toxic or overwhelming smell persists even after replacing the cabin filter, this is worth knowing: multiple independent, documented cases have found the actual cause to be a dead rodent, or droppings left behind by one, inside the filter housing itself, rather than the filter or wider ventilation system. It's worth removing the filter again and thoroughly checking and cleaning the housing itself.

A genuinely useful diagnostic distinction worth knowing: if outside smells are still getting into the cabin even with recirculate switched on, this points toward a fault with the outside air door rather than the cabin filter itself. A stuck or malfunctioning door motor can leave this door partially open regardless of the recirculate setting.

It's also worth knowing a genuinely practical, real preventative tip: keeping some air moving through the ventilation system regularly, rather than leaving it switched off entirely between uses, has been recommended by dealer service departments as a way to help prevent musty smells developing in the first place.

Honda HR-V Cabin Air Filter: Easy to Forget, Easy to Fix

Unlike most parts covered on this Honda HR-V guide, this one has no bearing on how the car drives or performs — its only job is air quality inside the cabin, which makes it very easy to forget about entirely until something forces the issue.

Honda HR-V Cabin Air Filter: Watch: Replacing It

🎬 Watch: How To Replace A Cabin Air Filter on HONDA HRV 2014 - 2017 onwards

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Honda HR-V 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.

Honda HR-V Cabin Air Filter: What It Does

The Honda HR-V's cabin air filter cleans incoming air before it reaches the ventilation system, trapping dust, pollen and, on activated-carbon versions, some airborne odours and pollutants. It has no connection to the engine air filter, which is a completely separate part serving the combustion process rather than the cabin.

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Honda HR-V 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 Honda Cabin Air Filter

The same part, covered across other Honda models.