I Know this is not an answer as such but i thought they had gone back to a mechanical valve.
Iam only questioning this because when you turn the temperature control you feel a cable movement and it sometimes gets sticky.
Assuming this is an early mk6
Jamie
Hi Jamie
The temperature control is mechanical but the fan blower control is definitely an electrical switch that feeds a resistor unit on settings 1 to 3, none of which work. Setting 4 bypasses the resistor unit and turns the fan on full so you always at least have that. It's the resistor unit I'm trying to find.
Come on folks, surely someone out there knows where it's fitted?