TYC 800028C2 BMW Replacement Cabin Air Filter OE-comparable configuration as either Particle filter (single-stage) or Combination filter (with additional carbon layer to remove odor) Eliminates nearly 100% of exhaust pollutants and airborne contaminants Easy to install onto most vehicles within 7 minutes; installation instruction included with each unit Provides clean air for you and your passengers; recommended replacement interval: every 12,000 miles BMW Genuine Part # 64 31 6 935 823, 64 31 9 171 858 ; Replacement Fram CF10103