BMC FB01045 Replacement Air Filter for MERCEDES-BENZ A35 AMG (W177) / GLA35 AMG (H247) / GLB35 AMG (X247)Description BMC FB01045 Replacement Air Filter for MERCEDES BENZ A35 AMG (W177) GLA35 AMG (H247) GLB35 AMG (X247) The BMC air filter features a metallic mesh with an oiled multilayer cotton filtration material. This design ensures a high level of filtering efficiency while minimizing air pressure loss. The oil provides the material with an adhesive property, helping to retain air impurities without restricting airflow, resulting in a continuous