Location
The coolant outlet 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.
Shown on engine 935 |
B606 | Exhaust coolant temperature sensor |
W07.04-1094-76
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.
Structure
There is an temperature-dependent resistor with negative temperature coefficients (NTC resistor) inside the exhaust coolant temperature sensor (B606). The electrical resistance falls for an NTC resistor as the temperature increases.
Function
The coolant at the coolant outlet temperature sensor (B606) influences the temperature measuring element inside the sensor depending on its temperature and thus the size of the NTC resistor value. The engine management control unit (MCM) (A4) derives the associated temperature from the electrical resistance.