1668300218 Cabin Air Filter fit for W166 X166 W205 1668300218. OEM NO. : 1668300218. Easy Installation: Spend less time on maintenance and more on the road with our easy air filter, designed for a seamless and fast replacement. Traps dust, pollen, and airborne particles before air enters cabin. Maintains clean airflow through HVAC vents for all passengers. Pleated design increases surface area for capturing microscopic contaminants. Recommended replacement every 12,000 miles or annually., Manufacturer: HGCXBYAP