On Mon, 24 Jan 2005 mail-return@xxxxxxxxxxxx wrote: >> The valve assembly you're referring to is the heater control valve. It goes >> inline with the return hose. If you can control the temperature, it's just >> somewhere else on your car. > > Well, there does not appear to be any such animal on the line. Anyone > have more info on this? Should I have one of these, and it just got lost > in the years before I had the car? If you can control the heat with the dash lever, you've got one. On the 10 and 80 series, the valve is in a pocket on the fan housing. It's pretty obvious, as the heater hose runs to it and the control cable from the dash runs to it. (BTW, these leak, but there is a repair kit available; same valve as Volvos.) tomj