CarCareTruth Score
Recommended, but it's tough on the environment.
Opens Amazon in a new tab. No account needed to look.
Saved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
As an Amazon Associate I earn from qualifying purchases. Full disclosure
Prices may varyThis product ranks #5 of 19 in Cabin Air Filter.Three above it ↓
Last reviewed May 25, 2026
TL;DR OE-equivalent fit confirmed across catalog-listed VAG platform applications · Audi A3, Q3, and TT plus a broad slate of Volkswagen models on the shared HVAC housing. Pleated multi-layer media with a structurally confirmed activated charcoal layer (CUK suffix in Mann-Filter's catalog denotes the carbon-bearing variant). No published part-number-level test standard for filtration efficiency. Standard 12-month / ~12,500-mile Audi/VW OE service interval. Among the strongest community fitment signals in the category catalog, with a large owner base broadly confirming the fit.
Pleated multi-layer cabin filter with an activated charcoal layer · the carbon content is structurally confirmed by Mann-Filter's CUK naming convention, which distinguishes the charcoal-bearing CUK 2939 from the non-charcoal sibling CU 2939. The filter is the OE-equivalent across the catalog-confirmed VAG platform applications · Audi A3, Q3, and TT plus a broad slate of Volkswagen models on the shared HVAC housing. The manufacturer describes filtration as combined mechanical and electrostatic capture, but no EN 1822, ISO 16890, or ASHRAE 52.2 MERV test result is published for this part number. Standard 12-month Audi/VW service interval applies.
Right pick for owners of a catalog-confirmed VAG application · Audi A3, Q3, or TT, or a Volkswagen on the shared HVAC housing · who want OE-equivalent cabin filtration with an odor-capable activated-charcoal layer at a sub-$15 price point. Skip if the vehicle is a non-VAG platform · third-party cross-reference databases occasionally list this part incorrectly for vehicles whose HVAC housing does not match. Always confirm your exact year, model, and trim by VIN before ordering. Skip if a published EN 1822 or ISO 16890 efficiency certification is a purchase requirement · look for a cabin filter with a part-number-level test result cited in the product documentation.
Passive replacement component · pleated synthetic-media filter with no chemical exposure pathway during installation. Integral polymer-edge pleat pack is mixed-material construction with no separable recyclable component and no manufacturer take-back program; spent filter (media + charcoal) is landfill-bound at end of service. Standard 12-month replacement interval generates one spent filter per year per vehicle.
A cabin filter only does its job if it actually fits your car, and the same vehicle often takes a different part year to year. Before you buy, find the cabin air filter for your vehicle in the CarCareTruth cabin-filter finder · pick your year, make, and model and we'll show the filters that fit it, ranked by our independent score and cross-checked against multiple catalog fitment sources.
CUK 2939 is the OE-equivalent cabin filter for catalog-confirmed Audi and Volkswagen platform applications · Audi A3, Q3, and TT, plus Volkswagen models including the Jetta, Golf, GTI, Passat, CC, Beetle, EOS, and Tiguan on the shared HVAC housing. Despite some third-party cross-reference databases listing it incorrectly, CUK 2939 is not the correct part for Toyota, Honda, Mercedes, or BMW vehicles. Always confirm your exact year, model, and trim by VIN before ordering · HVAC and climate options can change the filter.
CUK is Mann-Filter's structural catalog designation for a cabin filter with an activated charcoal layer. The non-charcoal version of the same part exists separately as CU 2939 (ASIN B001DRLPJE). Because the charcoal layer is a part-number distinction rather than a marketing add-on, the carbon content of CUK 2939 is confirmed by the SKU itself, not just by listing copy.
No published EN 1822, ISO 16890, or ASHRAE 52.2 MERV test result is cited on the product listing for CUK 2939 specifically. Mann+Hummel publishes general efficiency claims for the CUK series at the brand level, but no part-number-level test report is available in the listing data. The filter is treated as OE-equivalent on the strength of the original-equipment fitment pedigree and the structurally confirmed activated-charcoal layer.
Audi and VW OE service schedules for this filter are typically 12 months or about 12,500 miles, whichever comes first. The product listing does not state a fixed mileage interval; Mann-Filter category guidance for cabin filters is the standard 12-month cycle. Drivers in dusty or high-pollen environments may benefit from a shorter interval.
Yes. Activated charcoal granules adsorb a broad range of volatile organic compounds and odors at the molecular level. Baking-soda impregnation neutralizes some acidic odors but does not deliver equivalent VOC adsorption. The CUK 2939 uses activated charcoal granules embedded in a carrier layer · the broader-capability technology of the two.
Marketing copy from Mann-Filter, via Amazon. Not editorial.
Weekly pick
One product, one safety verdict, every week. No spam.
K&N
VF2049 Premium Washable Cabin Air Filter
MAHLE
LAK 812 Cabin Air Filter
K&N
VF2001 Premium Washable Cabin Air Filter
ECOGARD
XC10022C Premium Cabin Air Filter with Activated Carbon
As an Amazon Associate I earn from qualifying purchases. Full disclosure
Community
0 postsShare how you use this product
Drop a quick comment or post a full review with photos and a star rating.
Sign in to postNew here? Create a free account.