gf1830d2011hd

Component description for oil temperature sensor

Type gf · topic 18.30 · version 0101 · 2011-07-15

Applies to: ENGINES 651.955 /956 /957 in MODEL 906 ENGINES 651.940 in MODEL 639.6 /70 with CODE (XZ1) Model generation 1 with CODE (MZ0) BlueEFFICIENCY

Where it sits

Function group 1 Engine › 18 Engine lubrication, engine oil cooling › 18.30 Oil cooling system — Series 639 (models 6**, 70*) · Series 651 (models 940, 955, 956, 957) · Series 906

GF18.30-D-2011HD

Component description for oil temperature sensor

22.6.11

ENGINES 651.955 /956 /957 in MODEL 906

ENGINES 651.940 in MODEL 639.6 /70
with CODE (XZ1) Model generation 1
with CODE (MZ0) BlueEFFICIENCY

Component description for oil temperature sensor

D18.40-1121-04

Location

Shown on model 906, view of the engine from the lower left

1 Vacuum pump

B40/9 Engine oil temperature sensor

The engine oil temperature sensor is located above the vacuum pump in the oil duct on crankcase at the left rear.

Task

The engine oil temperature sensor detects the engine oil temperature.

Output signals

Direct output signals

The engine oil temperature sensor passes on the change in resistance for determination of the engine oil temperature to the CDI control unit (N3/28).

Design

The engine oil temperature sensor possess an integral precision resistor with a negative temperature coefficient (NTC).

Function

The NTC measuring resistor alters its electrical resistance in line with the engine oil temperature. Electrical resistance decreases as temperature increases.

The change in resistance results in a voltage signal, which is used by the CDI control unit to determine the engine oil temperature.