12 61 250 Removing and installing/replacing oil temperature switch (M52TU, M54, M56)
Switch off ignition.
Remove suction filter housing, refer to 13 71 000 REMOVING AND INSTALLING INTAKE FILTER HOUSING (M54) .
Unfasten oil filter cover to enable engine oil in filter to flow back into the oil sump.
The procedure is described in BMW engine oil service.
NOTE:
Figure shows power steering pump supply tank removed.
Disconnect plug connection (1).
Disconnect plug connection (1).
CAUTION:
A few drops of oil escape when the oil temperature switch is released. Catch residual oil with cleaning cloth and dispose of oil.
Disconnect plug connection (1).
Release oil temperature switch.
Installation:
Tightening torque, refer to 12 61 1AZ in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .