61 31 382 Replacing coolant level switch (N55): Notes

WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2017 BMW M6, 2017 BMW 650i xDrive, 2017 BMW 650i, 2017 BMW 640i xDrive, and 2017 BMW 640i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Risk of scalding.
Only perform this work after engine has cooled down.

Necessary preliminary tasks:

Remove TRAILING LINK
Remove INTAKE PORT

Release screws (1).

Lift out coolant expansion tank (2) with oil reservoir (3) in direction of arrow.

Fig 1: Lifting Out Coolant Expansion Tank With Oil Reservoir

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Turn coolant level switch (2) in direction of arrow and pull downwards out of expansion tank (3).

Fig 2: Removing Coolant Level Switch

Courtesy of BMW OF NORTH AMERICA, INC.