Cabin & comfort
Cabin microfilter
Filters air entering the passenger compartment.
In the climate air intake or HVAC housing.
Particle and optional activated-carbon layers reduce selected contaminants in incoming air.
A dust mask for the cabin ventilation.
Reduced airflow or odors can involve the filter, water ingress or the HVAC system.
Filters use the service schedule. Motors, controls, seals and trim are inspected for condition and operation.
A filter or switch service differs from dashboard removal or a complete seat mechanism; access can be the main expense.
BMW cabin microfilters and engine air filters are separate service items.
BMW cabins as equipped; controls and comfort hardware vary substantially by generation.
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