mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Crankshaft Position Sensor > < Coolant Temperature Sensor, Location|Page 4503
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Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Coolant Temperature Sensor, Function

Coolant Temperature Sensor, Function

B11/4 

Coolant temperature sensor

The NTC resistor alters its electrical resistance in line with the coolant temperature. It decreases as the temperature increases.
Example:

Coolant temperature Resistor
20°C 3100 ohms ±5 %
80°C 315 ohms  ±5 %

Crankshaft Position Sensor > < Coolant Temperature Sensor, Location|Page 4503