Wesfil Cabin Pollen Filter to suit BMW 3 Series and BMW X3 models built from 2016 to 2025, supplied ready to fit with no modification required. The frame is treated to resist mould and bacterial growth in humid conditions. The Synthetic Media media captures pollen, road dust and brake particulate down to 25 micron. An activated carbon layer reduces exhaust odour and diesel fumes in traffic. Element size is approximately 260mm x 95mm and slides into the factory housing behind the glovebox. Replacing this filter every 15,000km restores air conditioning airflow and reduces musty smells at start-up. Fitting is a straightforward workshop job and no coding or calibration is needed. Sold new with 36 Months warranty cover and full technical support.