The BMC cylindrical replacement air filter for Alpina D III (2005–2008) 2.0L D is sized to match the factory cylindrical element and fit the original housing. It serves as a service replacement to maintain filtration and airflow for that diesel engine. Replace it during scheduled maintenance to help preserve intake cleanliness and consistent engine operation under typical driving conditions.
BMC 05-08 Alpina D III 2.0L D Replacement Cylindrical Air Filter