61 31 382 Replacing coolant level switch

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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. See 13..... REMOVING INTAKE DUCT (N63) .

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: Turning Coolant Level Switch

Courtesy of BMW OF NORTH AMERICA, INC.