Cabin Air Filter Set for 1997-2003 BMW 540i & More - Bosch P3821WS

$20.99

Vehicles this part fits

    Part number: P3821WS
    UPC: 028851712033
    Condition: New
    Weight: 2.03 LBS
    Item Package Quantity: 1
    $20.99
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    Bosch Cabin Air Filter Set P/N:P3821WS
    Bosch Cabin Air Filter Set P/N:P3821WS
    $20.99
    $20.99

    Bosch P3821WS cabin air filter set for the 1997-2003 BMW 540i and other vehicles filters dust from the air entering the cabin. This Bosch cabin air filter is a particulate type and is not reusable.

    • Multi-layer construction traps over 97.5% of dust particles 3 microns or larger
    • Filters without excessive pressure drop, so HVAC system performance is kept up
    • High pleat count gives more surface area and filtration capacity
    • Structural ribs add stability to the filter

    Quick facts

    • Part: Bosch P3821WS cabin air filter set
    • Fits: 1997-2003 BMW 540i and other vehicles
    • Material: Foam

    A clogged cabin air filter can show up as weaker airflow from the vents, a dusty or musty smell, or more dust inside the car. Before you replace the filter, rule out a tired blower motor or blocked vents, because weak airflow does not always start at the filter.

    Fits

    This set is listed for a wide range of BMW models, including the 1997-2003 BMW 540i, the 2000-2003 BMW M5 and the 2001-2003 BMW 525i, and each car takes one filter. It is designed and tested as a direct OE replacement for these vehicles. If your BMW is not one of them, open the "Vehicles it fits" section to check your exact model and engine.

    Specifications

    Fit and size

    • Quantity per vehicle: 1
    • Pieces in listing: 1

    Build and materials

    • Filter type: particulate
    • Material: foam
    • Activated carbon pre-filter: none
    • HEPA: no
    • Reusable: no
    • Recommended replacement interval: 12,000 miles

    Product information is for general reference and may contain errors. See our Disclaimer.

    Frequently Asked Questions

    Is the Bosch P3821WS cabin air filter right for the 2000-2003 BMW M5?

    Yes. The Bosch P3821WS cabin air filter set is listed for the 2000-2003 BMW M5, and the car takes one filter.

    Does Bosch P3821WS work as a HEPA cabin air filter?

    No. This Bosch P3821WS is a particulate cabin air filter, not a HEPA one, and it has no activated carbon pre-filter for odor removal.

    How often should I change a Bosch cabin filter like this one?

    The recommended replacement interval is 12,000 miles. Keeping to your vehicle's maintenance schedule with a fresh filter helps HVAC system efficiency.

    What size dust does this Bosch car air filter catch?

    This cabin air filter's multi-layer construction traps over 97.5% of dust particles 3 microns or larger, without excessive pressure drop through the HVAC system.

    Is this one of the Bosch car filters designed as a direct OE replacement?

    Yes. The Bosch P3821WS is designed and tested as a direct OE replacement for the vehicles it is listed for.

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