Hi
I have a 2008 FWD 140PS van with aircon and the heater is blowing out cold air.
I checked the valve in the engine bay and there does not seem to be any hot water going into the heater matrix. When the ignition is on the actuator pulls in whatever the position of the temperature control. I tried to check the temperature control, but needed to remove the radio first (now waiting for relevant tool for that).
Can anyone point me to a description of how the system works so I can try and diagnose or do you have my ideas what to check.