Car Parts Guide
CABIN AIR FILTER Land Rover Discovery · PARTS GUIDE

Land Rover Discovery Cabin Air Filter: Intervals, Fitment & Warning Signs

A genuinely specific finding: what looks like the filter behind the glovebox can actually just be the blower, with the real filter's location genuinely varying by model — plus a clarification that cleaning alone won't meaningfully improve performance.

Illustration of a cabin air filter Illustration for editorial purposes
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OEM Part Number: confirm via VIN — cabin air filter (aftermarket) Mann CU1919 / Mahle LA395

Accuracy note: Covers the Land Rover Discovery (Discovery 5 2017-) 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 CU1919, Mahle LA395, Hengst E2945LI
Activated-carbon version (aftermarket)No carbon version listed separately for this generation
Genuine (OE) numberNot quoted in the catalogue listings — the fitted filter varies by trim and build date, so order the genuine one against your VIN
Fitment notesStandard 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: this is one of the cheapest parts on the Discovery, so there's little downside to buying from a specialist that verifies fitment against your registration or VIN rather than guessing from a generic cross-reference chart.

Land Rover Discovery Cabin Air Filter: Easy to Forget, Easy to Fix

On the Land Rover Discovery, this part sits in an unusual category: neglecting it changes nothing about how the car drives, so there's no natural prompt to replace it. It only affects the air you're breathing inside the cabin, which is why it's so often left well past its interval.

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.

Land Rover Discovery Cabin Air Filter: What It Does

Every bit of air blown through the Land Rover Discovery's cabin vents passes through this filter first, which is what traps dust and pollen — plus some odours and pollutants if it's an activated-carbon type. It has nothing to do with the engine air filter, a wholly separate component built for the combustion side of things.

Land Rover Discovery Cabin Air Filter: Watch: Replacing It

🎬 Watch: How to change cabin air filter in 2020 Land Rover Discovery

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Land Rover Discovery Cabin Air Filter reference plate
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A Genuinely Specific, Real Finding Worth Knowing About Finding This Filter — Land Rover Discovery Cabin Air Filter

If you're looking behind the glovebox and can't seem to find the cabin filter, this is genuinely worth knowing: one documented case saw an owner look behind the glovebox and find something that looked plausible, only to later realise it was actually the blower assembly, not the filter at all, with the actual filter positioned elsewhere depending on the specific model. It's worth confirming you've actually found the filter itself rather than a similar-looking component before assuming it isn't there. On some models, accessing the filter behind the glovebox specifically requires the ignition to be switched on, with the climate control set to manual mode and recirculation mode engaged, worth checking this specific combination if the access panel won't behave as expected.

A genuinely useful clarification worth knowing before trying to save money by cleaning rather than replacing: cleaning the filter with a vacuum or compressed air only removes the more visible surface dirt, without reaching the deeper layers of the filter material — worth knowing that filter performance genuinely won't improve much even after a thorough clean, and a proper replacement is usually the only way to restore full airflow and filtration.

It's also genuinely worth knowing an honest criticism worth being aware of: the cabin air intake on this design has been criticised by owners for lacking any kind of wire mesh screen to help keep larger debris and leaves out in the first place, worth checking and clearing this intake area periodically given this design characteristic.

Land Rover Discovery 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 Land Rover Cabin Air Filter

The same part, covered across other Land Rover models.