P83.40-0353-06
Function
The vacuum element for the blend flap (45) is controlled by the automatic A/C pushbutton control module via the valve block (Y11)
In the open state, vacuum is present at the vacuum element for the blend flap (45).
The blend flap is opened momentarily when the system switches over from cooling to heating and vice versa (mode change). This ensures that the temperature of the air exiting from the center nozzle changes slowly for comfort-able regulation of the temperature in the vehicle passenger compartment.