17 11 100 Removing and installing/replacing coolant expansion tank

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Drain coolant from radiator

Release and disconnect coolant hoses (1).

Release screws.

Raise expansion tank, unlock plug on coolant level switch and disconnect.

Remove coolant expansion tank (2).

Installation:

Insert locating pin in rubber grommet.

Fig 1: Identifying Coolant Hoses And Coolant Expansion Tank

Courtesy of BMW OF NORTH AMERICA, INC.

Check cooling system for leaks.