Component Description For Exhaust Coolant Temperature Sensor - Mercedes-Benz OM 471 Introduction Into Service Manual

System components
GF20.00>W>4100H
ENGINE 471.9 in MODEL 963
Location
B606 Exhaust coolant temperature
sensor
The exhaust coolant temperature sensor
(B606) is located on the front side of the
coolant manifold which is on the right side
of engine between the cylinder head and
the exhaust gas recirculation cooler.
Task
The coolant outlet temperature sensor (B606) enables the engine
management (MCM) control unit (A4) to determine the current
coolant temperature at the engine outlet.
Design
There is an NTC resistor inside the exhaust coolant temperature
sensor (B606). NTC stands for "Negative Temperature
Coefficient", which means that electrical resistance falls as
temperature rises.
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Component description for exhaust coolant temperature sensor

– This printout will not be recorded by the update service. Status: 09 / 2011 –
Function
The coolant at the exhaust coolant temperature sensor (B606)
influences the temperature measuring element inside the sensor
depending on its temperature and thus the size of the electrical
resistance. The engine management (MCM) control unit (A4)
deduces the associated temperature from the electrical resistance.
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