Sisters 2009 fiesta 1.6 diesel. Have had a number of problems since purchasing it May this year the latest of which is the cabin heater not working. The fan is working but will only blow cold air. The coolant level is ok, the engine is heating up so thermostat is ok, both heater matrix inlet and outlet pipes exiting the rear of the engine bay are heating. Research on line points to the heater control valve on earlier marks failing alot. On the mk6 this is accessed by removing the wipers and trim under the windscreen. Looks like it might be harder to get at on the mk7 if the mk7 actually has one. Someone mentioned that he thinks the heater control valve was discontinued on the mk7 replaced instead with an air blend door, Does anyone know for certain? Thanks.