Well, that's interesting: my hoses look nothing like that. There's just one hose running from the firewall into the intake. What's more, since I've owned the car there's been a two-pronged plug that isn't plugged into anything.

Well, dog my cats....

Why would someone remove the aux water pump? Will reinstalling it perhaps make the HVAC work as it should?

I feel like these are incredibly basic questions, so thank you for humoring me.

Corvo Gold
1987 300TD, converted to manual shift.