BMC FB929/20 Replacement air filter BMW 7 (G11 / G12) 730D / XDDescription BMC FB929 20 Replacement air filter BMW 7 (G11 G12) 730D XD 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 filtering process. The cotton filtrating element