Hopefully a picture really is worth a thousand words, because I'm clearly not
making myself clear here. It's *not* blind. You can see in there. You just have to
be in the right place with the right tool.
Starting with the proper tool for the job.
You simply shine some light in there (can stuff a maglight with it's
top removed behind the radiator on top of the frame member)
and then sight through the gap between the spoiler and the frame member
and between/under/around the A/C lines and it's *clearly* visible. Stuff the
socket up there poke it over the bolt and away you go... both removing and tightening.
Here was me putting it back together. Notice all 3 plugs are visible
and the oil cooler is still on.
The reason I said it'd be easy with the cooler off is the *only* problem
I had was getting my hand in there, although still did so. I could see
where the plugs were going easily.
I timed it. Pulling the housing off off, removing the sensor, putting the T fitting on,
reinstalling, hooking up plugs, and taking a dozen photos of the process
at various points while trying to get better light on it for the camera, all took a little
less than an hour.
BTW, in terms of getting oriented to see the stuff above, what helped was
I had the car's front tires up on ramps, and the rear up on stands.
Basically the car is raised level about 9 inches off the ground all the way around.
To see through that space, I had my hold body under the car and head resting on
something with forehead against the lower spoiler, looking up and back. It'd be
really easy on a lift, with a good worklight stuffed in behind the radiator, which is
probably why VF doesn't think it's any big deal.