Ford 2013 Flex Owner's Manual page 312

7. Without disconnecting the sensor (4), pull the air filter assembly up to
disconnect the air filter assembly from the seated grommets located
underneath the air filter assembly.
9. Tighten the clamp (1).
10. The transmission fluid level indicator can now be accessed.
Low fluid level
MIN MAX
Correct fluid level
The transmission fluid should be checked at normal operating
temperature 180°F-200°F (82°C-93°C) on a level surface. The normal
operating temperature can be reached after approximately 20 miles
(30 km) of driving.
2013 Flex (471)
Owners Guide gf, 4th Printing, December 2012
USA (fus)
Maintenance
8. Rotate the air filter assembly
90 degrees counterclockwise and
reinstall into the rubber hose.
If the fluid level is below the MIN
range of the dipstick, add fluid to
reach the hash mark level. Note: If
the fluid level is below the MIN level,
do not drive the vehicle. An underfill
condition may cause shift and/or
engagement concerns and/or possible
damage.
The transmission fluid level should be
targeted within the cross-hatch area
if at normal operating temperature
180°F-200°F (82°C-93°C).
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