How do you add transmission fluid to a 06 mercury mountaineer?

To add Transmission Fluid to a 2006 Mercury Mountaineer, first ensure the vehicle is on a level surface and the engine is running at operating temperature. Locate the transmission dipstick, usually found near the back of the engine. Remove the dipstick, wipe it clean, then reinsert it to check the fluid level. To add fluid, use a funnel to pour the appropriate type of transmission fluid into the dipstick tube, adding small amounts and checking the level frequently until it reaches the proper mark.