Thanks for the advice, I did mine today after 1 year/18K on the car; I unbolted the vent and unclipped the box as I needed all the room I could get to wiggle the new one in.
Bought the motorcraft filter from Rock Auto, good for another year.
The bolt size is 8mm for those that want to use the mentioned method.
Originally Posted by Kevin_agar
I took mine out today and replaced it... 10 minute job and did not remove or unplug any pcm parts or disconnect the battery. Here's the secret... There is a small downward facing vent under the glovebox. Undo the bolt and push the vent to the left. Pull the old filter out in an arc through the space where the downwards facing vent was while squeezing the filter as previously noted by others. To install u simply push the filter in through this space while squeezing the end a bit and just feed it in on an arc (like making a left hand turn kinda)... Occasionally aligning and manipulating the top then bottom back and forth until it is all the way in. It is a pain but it does go in in less than 3minutes... Then just slide the vent over 2 inches to the right and tighten the small bolt.... Install the cover and u r done.