560SL (107.048) V8-5.6L (117.967) (1989)
Electronic Switching Units (9) - Temp & (19) - Blower
-
The in-car temperature sensor (7) is located under a grille at top of instrument panel. The sensor feels the in-car temperature and transmits its
resistance to the electronic switching unit (9) to balance the temperature as set.
Air Jet (50)
-
An air jet (50) attached to heater box will draw air from interior of vehicle by way of the in-car temperature sensor, while the blower is running. As
a result, the response period of this sensor is shortened and the control accuracy is increased.