190E 2.3 (201.024) L4-2.3L (102.961) (1984)
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Radiator Cooling Fan Temperature Sensor / Switch: Description and Operation
High Temperature Cutout Switch Location
PURPOSE
The 100°C temperature switch, which is located near the water pump, activates the auxiliary fan (high speed) to prevent engine overheat.
OPERATION
Wired in parallel with the high pressure switch at the receiver drier, the temperature switch completes the ground circuit for the high speed fan relay at
approx. 212°F (100°C), activating the auxiliary fan (high speed). As the temperature drops below approx. 200°F (94°C) the circuit is opened and fan
operation discontinues.
