Product Details

• Article Number: CUK 19 004 — Mann-Filter premium activated carbon cabin air filter from the professional CUK-series range. The "CUK" prefix designates Mann-Filter's combined particulate + activated carbon cabin filter line ("Combi Filter Universal Kabine"), the premium specification above standard particulate-only cabin filters.
• Filter Type: Activated Carbon Filter — dual-layer construction with particulate filtration paper plus impregnated activated carbon. The carbon layer chemically adsorbs odours, exhaust fumes, and harmful gases including NOx, ozone, and volatile hydrocarbons. The particulate layer captures pollen, dust, mould spores, brake dust, and PM2.5. Together these provide significantly better cabin air quality than basic particulate-only filters.
• Required Quantity: 2 — the BMW X3 F25 cabin filter housing accepts two filter elements installed side-by-side. This Mann-Filter listing includes BOTH filters in the set — a key advantage over the Ridex equivalent (which requires ordering quantity 2 separately). One purchase = complete cabin filter service.
• Length: 187 mm — outer dimension of each filter element. Slightly different from the Ridex equivalent (188 mm) but well within tolerance for the BMW filter housing.
• Width: 188 mm — near-square format characteristic of BMW cabin filters.
• Height: 25 mm — slim profile depth.
• Fitting Position: Engine compartment, passenger side, below plenum chamber cover — accessible by removing the plastic plenum cover at the base of the windscreen on the passenger side. Different access location to many other vehicles where cabin filters sit behind the glove box. The BMW X3 F25 design places both filters in the engine bay for easier service access.
• Basic Version Article Number: CU 19 004 — Mann-Filter's particulate-only equivalent of this filter. The "K" suffix (CUK) denotes the activated carbon upgrade. Worth noting if customers want an even more economical option, but the activated carbon variant is strongly recommended for Tanzanian driving conditions where exhaust fumes and dust are common.
• Function: Cleans air entering the cabin through the HVAC system, protecting passengers from airborne irritants (pollen, dust, smog) and harmful gases (exhaust fumes, ozone, NOx). The activated carbon is particularly valuable when stuck behind diesel buses, lorries, or in heavy city traffic — without it, those exhaust gases enter the cabin and accumulate as the AC recirculates air.
• Condition: New — factory-sealed in Mann-Filter OE packaging.
• Manufacturer: MANN-FILTER (Mann+Hummel) — German OE supplier founded in 1941, headquartered in Ludwigsburg. Mann+Hummel supplies original-equipment cabin filters directly to BMW factories — meaning these filters are functionally identical to "Genuine BMW" cabin filters, just without the BMW-branded packaging premium.
• OEM Cross-References: BMW 64 31 2 284 827, BMW 64 31 2 284 828, BMW 64 31 9 237 157 (plus additional BMW cross-references) — direct equivalents to these original BMW part numbers.
• Vehicle Compatibility: Designed for the BMW X3 F25. Always verify against your vehicle's VIN or existing filter part number before purchasing.
• Quality Tier: Premium OEM-quality — Mann-Filter supplies BMW's factory cabin filters. The activated carbon impregnation matches BMW's premium-spec OEM filter.

‍