190E 2.3 (201.024) L4-2.3L (102.961) (1984)
Aspirator: Description and Operation
Aspirator Blower
PURPOSE
The aspirator blower which is located behind the passenger side dash outlet, provides continuous air flow past the in-car (interior) temperature sensor for
increased sensor accuracy.
OPERATION
When the ignition is switched "ON" the blower aspirator continuously pulls small amounts of interior air passed the in-car temperature sensor. If the
aspirator fails to operate, the TCC system will experience slow response to temperature changes and possibly inaccurate interior temperatures.