11 53 000 Removing and installing/replacing coolant thermostat (N20)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. 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.

Recycling

Observe country-specific waste disposal regulations.

Catch and dispose of drained coolant in a suitable container.

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

Necessary preliminary tasks:

Remove top CLEAN AIR PIPE .
Remove engine VENTILATION LINE .

Disconnect plug connection (1).

Disconnect coolant hoses (2-4) on thermostat with CLAMPING TONGS .

Disconnect coolant hoses (2-4) from thermostat.

Release screws (5) and remove thermostat.

Tightening torque 11 53 1AZ .

Fig 1: Identifying Coolant Hoses, Plug Connection And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Top up COOLANT .

Vent COOLING SYSTEM .