FORD 2010 Flex v.2 - Manual (Page 378)

For vehicles equipped with the EcoBoost engine, reinstall the air
filter assembly.
After the fluid level has been checked and adjusted as necessary, do the
following:
A. Shut the engine off.
B. Loosen the clamp holding the air filter assembly to the rubber hose.
C. Rotate the air filter assembly 90 degrees clockwise without
disconnecting the mass air flow sensor.
D. Seat the air filter assembly back into the grommets by pushing down
on the air filter assembly.
E. Tighten the clamp.
F. Install and tighten two bolts that attach air filter assembly to the front
of the vehicle.
G. Install the bolt cover (if equipped).
H. Reinstall the harness retaining clip into the front of the air filter
assembly.
AIR FILTER
Refer to scheduled maintenance information for the appropriate
intervals for changing the air filter element.
When changing the air filter element, use only the air filter element
listed. Refer to Motorcraft
௡ part numbers in this chapter.
WARNING: To reduce the risk of vehicle damage and/or
personal burn injuries do not start your engine with the air
cleaner removed and do not remove it while the engine is running.
For Ecoboost™ equipped vehicles, when servicing the air cleaner, it
is important that no foreign material enter the air induction system. The
engine and turbocharger are susceptible to damage from even small
particles.
Maintenance and Specifications
378
2010 Flex (471)
Owners Guide, 2nd Printing
USA (fus)