5000CD Quattro Wagon (Canada) L5-2226cc 2.22L SOHC Turbo (MC) (1986)
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Evaporator Temperature Sensor / Switch: Description and Operation
From VIN GA 053 401
A/C Thermostat
Purpose and Operation
The thermostat measures the temperature of the evaporator via a capillary tube. It controls the power supply to the pull-in coil (terminal 86) of the
compressor clutch relay.
When evaporator temperature falls below 32°F (0°C), the thermostat switch will open. The compressor clutch relay will then open and switch the
compressor off to prevent evaporator "ice-up"
