Oil temperature sensor, component description - GF18.30-P-2010AMG
ENGINE 156.980 in MODEL 164, 251
ENGINE 156.982 in MODEL 209
ENGINE 156.983 in MODEL 211, 219
ENGINE 156.984 in MODEL 216, 221
Location
The oil temperature sensor is located at the front at the left side of the crankcase.
Function
The NTC resistor integrated in the oil temperature sensor alters its electrical resistance according to the oil temperature. The ME-SFI control unit (N3/10) evaluates the corresponding voltage signal for the oil temperature.
NTC means "N
egative T
emperature C
oefficient", which means:
The electrical resistance falls as the temperature rises (heat conductor).
| Oil temperature | Resistance value | Voltage signal |
|---|---|---|
| 20°C | 3123 Ω | 0,312 V |
| 60°C | 632 Ω | 0,063 V |
| 120°C | 101 Ω | 0,010 V |