Ever wonder why the heater control in almost every SAAB 99 is broken? First, the control in the dash is entirely plastic including a tiny post that is expected to push and pull on a Bowden cable to open and close the valve.
When the car was apart I worked on the controls and original valve. I cleaned up the Bowden cable and worked graphite into it. While it operates smoothly, the valve seal had degraded so it is impossible to turn off the heater completely. Wish I had found this part when I had everything torn apart, but maybe at the next coolant flush I’ll replace it.