For the F25 X3 and F26 X4, BMW separated the cabin air filtration into two separate sets of filters. These filters clean the recirculated air within the cabin. Replacing these cabin filter is part of a smart maintenance schedule for best health of the occupants and to eliminate odours within the cabin. We recommend replacing your cabin filter every 18 - 24 months. Manufactured by BMW supplier MANN.

OEM Part Number: 64119237159
Mann Part Number: CU 1721-2