12 61 280 Removing and installing/replacing oil pressure switch (M60, M62): Notes
Switch off ignition.
Unfasten oil filter cover to enable engine oil in filter to flow back into the oil pan.
Unfasten plug connection (1). (Shown here with oil filter disconnected)
Unscrew and remove switch.
Tightening torque, refer to 12 61 1AZ OIL PRESSURE, OIL TEMPERATURE