2017 Ford Fiesta Hatchback Replace cabin air filter

Cabin air filter

If your 2017 Ford Fiesta hatchback has a cabin air filter, check it at least once a year to make sure it’s not clogged.

Yes that’s dog food that’s been carried into your 2017 Ford Fiesta hatchback by mice. It now clogs your cabin air filter

A clogged cabin air filter can reduce airflow across the air conditioning evaporator coil to the point where the evaporator  freezes over. The evaporator temperature sensor should kick in to shut off the flow of refrigerant, but the icing may have already started. That would cause a cool/no cool condition. A clogged filter not only reduces cooling, but causes the air conditioning system to work harder which lowers your gas mileage. In addition, a clogged  filter causes the blower motor to work harder and draw more current. That causes the motor to overheat and can cause premature failure of the speed regulating blower motor resistor or power transistor. Cabin air filters are an important component and should not be ignored.

Cabin air filter catch all the debris from fresh air, like leaves, dust, and pollen

Consult your owner’s manual for the procedure to inspect and replace your cabin air filter.