The cabin air filter is located behind the passenger-side glove box. You access it by lowering the glove box and removing the filter housing cover to replace the filter.
Location and Access
The filter sits in a housing on the passenger side of the dash, just behind the glove box. Access requires dropping the glove box by releasing its side stops and damper, then removing the housing cover.
What you’ll need
Prepare these items before you start the replacement:
- New cabin air filter compatible with your 2015 Ford Flex
- Flat-head screwdriver or small pry tool (to release glove box stops)
- Flashlight for visibility
- Clean cloth or rag
Having these items on hand helps the process go smoothly and reduces the risk of damaging the glove box or filter housing.
Step-by-step Removal and Replacement
Use this sequence to access and install the new filter. This is a standard procedure for the 2015 Ford Flex and similar Ford models with a glove-box–based filter housing.
- Open the glove box and remove its contents.
- Gently squeeze the sides of the glove box to release the stops and let the box drop down.
- Locate the cabin air filter housing behind the glove box; rotate or pull off the housing cover.
- Remove the old filter and note its orientation; the filter arrow should point toward the cabin.
- Insert the new filter with the correct orientation, ensuring it seats fully in the housing.
- Replace the housing cover, return the glove box to its closed position, and re-engage the stops.
- Close the glove box and run the HVAC fan to confirm proper airflow.
Replacing the filter typically takes about 10-15 minutes and helps maintain interior air quality and HVAC performance.
Tips and cautions
Make sure the new filter is seated squarely and the housing cover is fully secured to prevent air leaks. If you can’t locate the filter, consult the owner’s manual or a Ford service guide for model-specific variations.
Summary
For a 2015 Ford Flex, the cabin air filter sits behind the passenger-side glove box. Access it by lowering the glove box, removing the filter housing cover, replacing the filter with the correct orientation, and reassembling. The replacement is straightforward and helps maintain good interior air quality and HVAC performance.