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Home >> BMW >> 2013 >> 528i >> Repair and Diagnosis (Single Page) >> General Information >> OEM General Information >> Functional Description - F10 - Stability Control System, Tire & Wheel System, Lubrication System >> Lubrication System - Functional Description >> Engine oil pressure/temperature sensor >> Functional description

Functional description

The engine oil pressure/temperature sensor measures the absolute pressure of the engine oil and its temperature. The measured values are output as a pulse-width-modulated signal.

The measuring procedure is based on a micromechanical piezoresistive pressure sensor (silicon) which supplies an output signal proportional to the pressure. Temperature measurement is performed by way of a diode.

The sensor measuring range is 0.5 bar to 10.5 bar at permissible temperatures between -40 °C and 160 °C. The sensor is operated with a voltage of 5 V.

Fig 1: Identifying Engine Oil Pressure/Temperature Sensor
G09908408Courtesy of BMW OF NORTH AMERICA, INC.
Index Explanation
1 Engine oil pressure/temperature sensor
2 three-pin plug connection