Locate BMW 328 Series Automotive Cabin Air Filters & BMW 328 Series Washable Cabin Air Filter. Discover Best BMW 328 Series Cabin Air Filters. Maintaining the cabin air filter in your BMW 328 Series is crucial for ensuring a clean and pleasant driving environment. To extend the lifespan of your filter, avoid parking under trees to prevent debris accumulation and run the fan regularly to thwart mold growth. Signs that your cabin air filter needs replacing include persistent bad odors, reduced airflow, and increased noise from the Hvac system. Selecting the right filter is simple; choose from particulate filters for dust and pollen or activated carbon filters for odors and gases, each designed with high-quality materials for durability. For seamless installation, always align the filter correctly with the airflow direction indicated by the arrows on the filter's frame. Shop with us for the perfect fit and breathe easier knowing your BMW is in top condition.