I have a 97 960 sedan, And the red radiator light is on, not sure exactly what that means, but There is a hose that is not connected in the engine compartment, and i cant figure out where it goes, i am including pictures of the location of the hose, I live in a very small town, No volvo mechanics here. I assume the hose not being connected is probably the reason the radiator light is on. I am getting ready to drive the car 1200 miles next weekend and need to make sure its not gonna die. The car does drive like it should though, just dont want this to turn into a huge problem.
Please help!

The hose does suck some air when the car is running.

Thanks in advance for any advice you can provide!

 

I figured out the red light means low coolant level, i put some in and that light is now off.... I am still wondering where that hose connects though...

 

In picture number 2, if you take that vacuum line straight down where there is a 90 degree connector on the air intake duct (the large rigid tubing is) you should see a nipple. That is where the vacuum line goes. Good luck.