S 600 Sedan (140.057) V12-6.0L (120.982) (1996)
Detecting the coolant temperature and supplying information to the ME control module, and to the automatic air conditioning control module (N22) or
air conditioning control module (N19)
Coolant Temperature Sensor, Design
Coolant Temperature Sensor, Design
Metal housing with 2 separate NTC resistors. 4-pin plug connection, diagonally different resistances.
Contact assignment at connector:
Connection 1 and 4: ME-SFI control module
Connection 2 and 3: Automatic air conditioning control module (N22) or air conditioning control module (N19).
B11/4
Coolant temperature sensor (engine 119)
B11/9
Left coolant temperature sensor (engine 120)
B11/10
Right coolant temperature sensor (engine 120)
Example of coolant temperature
20 °C 2 500 ohms ± 5% between connection 1 and 4
6 500 ohms ± 5% between connection 2 and 3
80 °C 325 ohms ± 5% between connection 1 and 4
650 ohms ± 5% between connection 2 and 3
Coolant Temperature Sensor, Function
Coolant Temperature Sensor, Function