Clean Diesel Exhaust Fluid (DEF) Tank Vent Filter—As Required

CAUTION: Avoid serious injury from falling. Do not stand on fuel tank when replacing air filters.

NOTE: Use a commercial ladder to access DEF tank vent filter.

1. 
   N99728-UN-17SEP12

   
   N104342-UN-12JUL13

   A - Cap Screw, 2 used

   B - Access Panel

   C - DEF Tank Vent Filter

   Remove and retain cap screws (A).

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2. Remove access panel (B).

3. Remove DEF tank vent filter (C) and clean in soapy detergent solution.

4. Blow dry with compressed air and replace.