Ford EcoSport Cabin Air Filter: Intervals, Fitment & Warning Signs

A real disinfectant trick clears a musty smell from the whole heater system — something a fresh filter alone often won't fully fix.

Illustration for editorial purposes

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OEM Part Number: confirm via VIN — cabin air filter (aftermarket) Mann CU2433 / Bosch 1987432215

Accuracy note: Covers the Ford EcoSport (2013-) 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 CU2433, Bosch 1987432215, Febi 34894, Valeo 715660
Activated-carbon version (aftermarket)	Mann FP 2433, Bosch 0 986 628 607, Febi 34895
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: activated-carbon (charcoal) cabin filters and plain particulate filters are often listed under different part numbers for the EcoSport — the charcoal version costs more but better handles exhaust fumes and odours, so check which type you're replacing.

A Genuinely Useful Tip If You're Fixing a Musty Smell — Ford EcoSport Cabin Air Filter

If you're changing the filter specifically because of a musty smell, it's worth going one step further: after fitting the new filter, spray a can of disinfectant (a household product like Dettol works well) into the intake vents, then run the fans on full with heat at maximum in recirculation mode for several minutes with windows and doors closed. This helps sterilise mould and mildew that can build up through the entire duct network and heater box, not just the filter itself — simply replacing the filter alone doesn't always fully resolve a persistent musty smell if the ductwork itself has mildew growth. Leaving the air conditioning running periodically rather than switching it off entirely also helps keep the system dry and less prone to this in the first place.

Ford EcoSport Cabin Air Filter: Easy to Forget, Easy to Fix

There's no performance downside to a neglected Ford EcoSport cabin filter, which is precisely the problem: nothing about how the car drives will tell you it needs changing, so it often gets forgotten until a musty smell or weak airflow forces the issue.

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.

Ford EcoSport Cabin Air Filter: Watch: Replacing It

🎬 Watch: 2013 To 2023 Ford EcoSport How To Change A/C Cabin Air Filter With Part Numbers

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Ford EcoSport Cabin Air Filter reference plate

Ford EcoSport Cabin Air Filter: What It Does

Don't confuse this with the Ford EcoSport's engine air filter — they're unrelated parts. The cabin filter's job is cleaning air before it reaches the ventilation system, catching dust and pollen, with activated-carbon versions also filtering some airborne odours.

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Ford EcoSport 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 Ford Cabin Air Filter

The same part, covered across other Ford models.