mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Coolant Temperature Sensor, Location/Task/Design/Function|Page 2774 > < Coolant Temperature Sensor, Location|Page 2771
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Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Coolant Temperature Sensor, Location/Task/Design/Function

Coolant Temperature Sensor, Location

Coolant Temperature Sensor, Position

Between the banks of cylinders, at front of engine
B11/4 

Coolant temperature sensor 

Coolant Temperature Sensor, Task

Coolant Temperature Sensor, Task

Shown on engine 119 
B11/4 

Coolant temperature sensor

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). 
 

Coolant Temperature Sensor, Location/Task/Design/Function|Page 2774 > < Coolant Temperature Sensor, Location|Page 2771