11 53 000 Removing and installing/replacing coolant thermostat (N52K)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 528xi, 2010 BMW 528i, 2009 BMW 528xi, 2009 BMW 528i, and 2008 BMW 528xi. However, it is still accessible from the selected car via links, so may be relevant.

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

Recycling

Catch and dispose of drained coolant in a suitable container.

Observe country-specific waste-disposal regulations.

IMPORTANT: Protect plug connections against coolant and contamination.
Cover plug connections with suitable materials.

Necessary preliminary tasks:

Drain coolant

Fig 1: Identifying Hose Clip, Coolant Hose And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For purposes of clarity, the picture and text refer to the component when removed.

Unfasten hose clip (1).

Tightening torque 11 53 5AZ .

Remove coolant hose.

Unfasten hose clip (2).

Tightening torque 11 53 6AZ .

Remove coolant hose.

Unlock and detach coolant hose (3).

Unlock and detach coolant hose (4).

Disconnect plug connection (5).

Release screws (6).

Tightening torque 11 53 1AZ .

Remove coolant thermostat (7).

Assemble engine.