Barometric Pressure Sensor (1998 528i with MS 41.1)

BAROMETRIC PRESSURE SENSOR INPUT
1998 MODEL YEAR 528i (MS41 .1 ORVR)







The 1998 528i with MS 41.1 requires a unique additional input signal for activation of the LDP function test. The sensor is located on passenger side strut tower forward of ASC 5 Hydraulic Unit.This component/signal is not included on the M5.2.1 system.)

The LDP test function can also occur during a long trip. If the test occurs while the vehicle is driven down a very steep grade just prior to the LDP test, the barometric pressure sensor provides a rapid change in the varied DC voltage signal informing the system to postpone the test function.