The heating and air conditioning is controlled by three rotary switches on vehicles equipped with manual temperature control. The air distribution flaps are actuated via the air distribution flap/temperature control flap actuating unit, which is connected via a rod to the control assembly for the climate control. The temperature control flap is also actuated via the air distribution flap/temperature control flap actuating unit, which is connected via a cable to the control assembly.
In addition, the operating switch for recirculated air mode and the on/off switch for the air conditioning are located on the control assembly.
Control assembly, climate control - vehicles with automatic temperature control
On vehicles with automatic temperature control, the sun load sensor measures the intensity of the sunlight reaching the vehicle and passes the values on to the A/C module, which then corrects the blower speed and flap position as required in automatic mode.
On vehicles with automatic temperature control the interior temperature sensor measures the temperature in the passenger compartment. These values are also used by the A/C module to regulate the pre-selected interior temperature.