Hello and welcome to just answer Dodge. Here is the procedure for replacing the fuel filter on your Sprinter. Hope this helps, and let me know if you need more assistance with this.
WARNING: NO SPARKS, OPEN FLAMES OR SMOKING. RISK OF POISONING FROM INHALING AND SWALLOWING FUEL. RISK OF INJURY TO EYES AND SKIN FROM CONTACT WITH FUEL. POUR FUELS ONLY INTO SUITABLE AND APPROPRIATELY MARKED CONTAINERS. WEAR PROTECTIVE CLOTHING.
CAUTION: DO NOT bend, twist or cut the fuel hose clamps. The fuel hose clamps throughout the fuel system are reusable when using special tool #9539. Orginal clamps must be used when servicing the fuel system.
NOTE: Capture any fuel spillage and dispose of in appropriately marked container.