POTAUTO MAP 3007C (CF10727) Activated Carbon Car Cabin Air Filter Replacement for BMW, 100 Series, 300 Series, 700 Series, X1 Spec.: 32.68" (Length), 5.71" (Width), 0.79" (Height); Four-layer fabric (One Carbon Layer) ; Installation instructions included. Applications Where Used: BMW (1 Series M 2011, 128i 13-08, 135i 13-08, 135is 2013, 323i 11-06, 325i 2006, 325xi 2006, 328i 13-07, 328I xDrive 13-09, 328xi 08-07, 330Ci 2006, 330i 2006, 330xi 2006, 335d 11-09, 335i 13-07, 335i xDrive 13-09, 335is 13-11, 335xi 08-07, X1 16-12) (See Amazon Part Finder for fitments to your cars) Benefits: (1) Reducing at least 98% of these contaminants (Dust, Pollen, Exhaust Gas, Particles of 5-100 microns...etc.) from the air passing through the filter & entering the interior of the vehicle. (2) Activated carbon cabin filter provide extra protection by absorbingthe airborne agents & allergens. (3) Increase safety through reduced deposits in the fan or on the windscreen, and protect HVAC air conditioning performance. Competitor Cross Reference Part Numbers (for reference only, please check size): BECK/ARNLEY 042-2070, BMW 64 316 946 628, 64 31 9 313 519, 64 31 6 962 553, 64 31 6 962 549, 64 31 9 142 115, CHAMP CAF1810C, KLEENER CAF1810C, CAF1810P, LUBER-FINER CAF1810C, PRONTO PC-5624C, PUROLATOR C25624, C25624C, SERVICE CHAMP C25624, Luber-finer CAF1810C, Ecogard XC25624C, MANN-FILTER CUK 8430, WIX 49371, FRAM CF10727 *** Change filter every 12 months or 12, 000-15, 000 miles. Check & replace filter if peculiar smell / odors emit from the cabin air outlets, or if the vehicle HVAC system operates with poor performance, or humming, or weak air volume. ***LEGAL DISCLAIMER: The Brand name & Model # (if listed) are for cross reference only. All Brands, Trademarks & Model Numbers remain the property of their respective owners.