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Home >> BMW >> 2013 >> 528i >> Repair and Diagnosis (Single Page) >> General Information >> OEM General Information >> Functional Description - F10 - Charging System, Anti-Theft System, Body Electrical System >> Charging System - Functional Description >> Charging pressure sensor (Ver. 2) >> Functional description
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Functional description

Strain gauge are used for detecting the pressure. A steel membrane equipped with strain gauge in the sensor is deformed by the adjacent pressure. The changes in resistance in the strain gauge are electronically detected by a Wheatstone bridge and evaluated. The measured voltage is then included as an actual value in the charge-air-pressure control.

Fig 1: Identifying Charging Pressure Sensor And Plug Connection
G09908198Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Charging pressure sensor
2 4-pin plug connection
3 Charge air cooler