Replacement of the Cab Recirculation Air Filter, Water-Valve Controlled

cen mm 83.02.000

The cab recirculation air filter must be replaced every six months, regardless of mileage, to permit proper operation of the HVAC system.

Caution: If the recirculation air filter is not replaced every six months, damage to the heater and air conditioner components could occur. The HVAC system should not be operated without the recirculation air filter installed.

Important: When replacing the air filter, use only a Freightliner-approved air filter.

  1. Park the vehicle on a level surface. Apply the parking brakes and chock the rear tires.
  2. Remove the heater and air conditioner cover and the upper dash cover. For instructions, see of the Century Class Trucks Workshop Manual.
  3. Remove and discard the foam filter.
  4. Using velcro tape, attach a new filter to the HVAC cover. See Fig..

    1. HVAC Cover

    2. Velcro Tape

    3. Seal Cover

    4. Recirculation Filter

    Fig. 1, Cab Recirculation Air Filter, Water-Valve Controlled

  5. Install the upper dash cover and the heater and air conditioner cover. For instructions, see of the Century Class Trucks Workshop Manual.
  6. Remove the chocks from the tires.
Note:
Parent topic: Replacement of the Air Filter
Document Number: 0000122470
Manual Publication Date: 2025-02-11
Topic Publication Date: 2024-06-04