Cabin Air Filter 1668300218 fit for S205 C205 A205 W166 Cabin Filter. OEM NO. : 1668300218. Breathe fresher air: The Activated Carbon Cabin Filter captures pollen and fine dust, ensuring cleaner and more pleasant air quality in the vehicle. 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