1999 Mercury Villager Owner's Manual - Page 204

Maintenance and care High fluid level Fluid levels above the safe range may result in transaxle failure. An overfill condition of transmission fluid may cause shift and/or HOT engagement concerns and/or possible damage. High fluid levels can be caused by an overheating condition. Adjusting automatic transmission fluid levels Before adding any fluid, make sure the correct type is used. The type of fluid used is normally indicated on the dipstick and also in the Lubricant specifications section in the Capacities and specifications chapter. Use of a non-approved automatic transmission fluid may cause internal transaxle component damage. If necessary, add fluid in 250 mL (1/2 pint) increments through the filler tube until the level is correct. If an overfill occurs, excess fluid should be removed by a qualified technician. HOT An overfill condition of transmission fluid may cause shift and/or engagement concerns and/or possible damage. AIR FILTER MAINTENANCE Refer to the Scheduled Maintenance Guide for the appropriate intervals for changing the air filter element. For information on replacement air filter elements, refer to Motorcraft Part Numbers in the Capacities and specifications chapter. Do not start your engine with the air cleaner removed and do not remove it while the engine is running. 204