Oil Monitoring
General
The following components are used for oil monitoring:
- oil level-/oil temperature sensor (7/166)
- Engine Control Module (ECM) (4/46)
- Driver Information Module (DIM) (5/1).
The sensor informs the driver via the Driver Information Module (DIM) that the oil needs to be topped up.
Detecting the oil level
The integrated electronics of the sensor calculates the oil level using the measured value for the oil temperature.
For the correct oil level to be calculated, temporary oil level changes in the oil trough must also be included in the calculation, which can occur when driving on hills, around bends or similar for example. The Engine Control Module (ECM) makes these calculations using the oil level sensor signal and a number of other parameters, for example, vehicle speed signal and load signal.