1998 Mercury Villager Owner Guide 1st Printing - Page 301

Maintenance and Care Wiper Blades Check the windshield wiper blades at least twice a year. Also check them whenever they seem less effective than usual. Substances such as tree sap and some hot wax treatments used by commercial car washes reduce the effectiveness of wiper blades. If the blades do not wipe properly, clean both the windshield and the wiper blades. Use undiluted windshield washer solution or a mild detergent. Rinse thoroughly with clear water. Do not use fuel, kerosene, paint thinner, or other solvents to clean your wiper blades. These will damage your blades. To reach the wiper blades easily, turn the ignition switch to ACCESSORY and turn your wipers on. Wait for them to reach a vertical position and turn the ignition to OFF. Moving the wipers manually may damage them. Wiper blade replacement If the wipers still do not work properly after you clean them, you may need to replace the wiper blade assembly. When replacing the wiper blade assembly always use a Motorcraft part or equivalent. 297