I cant seem to find this hose anywhere and mine is missing. Suggestions would be helpful, thanks. Either a source for the hose or what generic hose to buy.

 

I assume you didn't try a call to the dealer?

 

One of these or both I think. They are always missing it seems.
HOSE for 2000 Volvo S80|9452507
AIR DUCT for 2000 Volvo S80|9456911

 

Something like that. It's a weird hose that pulls air from the inlet between the hood and windshield then directs cold air under the coolant and p/s reservoirs to the ECM/ETM module box. I don't get where the hot air is supposed to go though, there is a vent on top of the box for a hose but the hole isn't drilled out. It's odd...

This helps though, thanks.