[Airwelldone]

Here is a picture from the left side of the car (pilots left) bumper under the fog-light. There is a cooler/heat exchanger in there. I'm just not sure if it's for the transmission or a differential cooler. Any thoughts?
And another issue. There is a hanging small wiring harness just dangling there. No clue what it goes to but it's not reassuring. :/

 

[lskarha]

One of the photos in this article labels it as Transmission Cooler. (And I remember reading it somewhere else too.)

http://driving.ca/ford/fusion/reviews/road-test/first-drive-2017-ford-fusion

 

[Airwelldone]

Right on. Thanks
The issue is I don't have ACC

 

[elronino]

Can you see if the harness is hooked to anything (I know stupid question)? Maybe it fell out of it's clip.

 

[don]

The issue is I don't have ACC

No, but the wiring harness is set up for it. Since the radar sensor for ACC is behind the grille next to the driver's side fog light, that's probably it. I would think they'd have tucked the unused connector away or tie-wrapped it to something, but it's probably no reason for concern.