Cleaning Of The HVAC Pre-Filter

4700 mm 83.02.004

    Note: On vehicles equipped with an HVAC pre-filter, the pre-filter should be cleaned every three months and replaced yearly.

  1. Shut down the engine and set the parking brake. Chock the tires.
  2. Open the hood.
  3. Remove the pre-filter mounted at the HVAC intake. See Fig..

    Note: On vehicles equipped with an HVAC pre-filter, the pre-filter is held in place by friction and a small clamping force; it has no fasteners.

    1. Pre-Filter

    Fig. 1, HVAC Pre-Filter

  4. Clean the pre-filter, as follows.
    1. Wash the pre-filter by flushing soapy water from the air-outlet side of the filter to the air-intake side of the filter.
    2. Rinse the pre-filter by flushing clear water from the air-outlet side of the filter to the air-intake side of the filter.
    3. Allow the pre-filter to air dry.
  5. Install the pre-filter, as removed.
Note:
Parent topic: HVAC Air Filter Cleaning and Replacement
Document Number: 0000121099
Manual Publication Date: 2024-05-23
Topic Publication Date: 2024-10-31